Medical Providers

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Dr. Charles Childers, DO. ,Chief Medical Officer

Charles Childers, DO

Chief Medical Officer
1100 W. Reynosa Ave., De Leon, TX.

Elizabeth Vallejo, FNP

2100 Crockett Dr., Brownwood, TX.

Dr. Tom Byrd, CMO

Tom Byrd, M.D.

2100 Crockett Dr., Brownwood, TX.

Michael J. Cloy, PA

Michael J. Cloy, PA

2100 Crockett Dr., Brownwood, TX.

Ian Patterson, PA
135 River North Blvd, Stephenville, TX.

Joe Hubbard Jr., M.D.
1100 W. Reynosa Ave., De Leon, TX.

Whitney Garland, MPAS, PAC
135 River North Blvd, Stephenville, TX.

Tiffany Torres, FNP
1100 W. Reynosa Ave., De Leon, TX.

Rogina Gosnell, AGACNP
2100 Crockett Dr., Brownwood, TX.

Tammy McCullough, FNP
2100 Crockett Dr., Brownwood, TX.

Roy Byrd, MD
2100 Crockett Dr., Brownwood, TX.

Brenda Madera, FNP
1100 W. Reynosa Ave., De Leon, TX.

Stephanie Powdar, PA
2100 Crockett Dr., Brownwood TX.

Shelia Spears, FNP
2100 Crockett Dr., Brownwood TX.

Dental Providers

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Rami Koro, DDS
Dental Director
135 River North Blvd., Stephenville, TX.

Shanna Britt, DDS
1100 W. Reynosa Ave., De Leon, TX.

Brittany Henderson, RDH
135 River North Blvd, Stephenville, TX.

Mackenzie Jordan, RDH
1100 W. Reynosa Ave., De Leon, TX.

Behavioral Health Providers

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Lilian Bor, PMHNP- BC
Behavioral Health Director
2100 Crockett Dr., Brownwood, TX.

Veronica Smith, LCDC
2100 Crockett Dr., Brownwood, TX.

Derek Jesko, LPC
2100 Crockett Dr., Brownwood, TX.

Rodney Sikes, LPC
1100 W. Reynosa Ave.,
De Leon, TX.

Megan Guidry, LPC-S
135 River North Blvd.,
Stephenville, TX.

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This health center is a Health Center Program grantee under 42 U.S.C. 254b, and a deemed Public Health Service employee under 42 U.S.C. 233(g)-(n).

AccelHealth does not and shall not discriminate on the basis of race, color, religion (creed), gender, gender expression, age, national origin (ancestry), disability, marital status, sexual orientation, or military status, in any of its activities or operations.

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With a strong belief in integrating mental health best practices into everyday life, Megan strives to help individuals cultivate balanced and fulfilling lives.
Megan offers trainings, individual therapy, and group therapy sessions, while also engaging in public speaking and educational initiatives to promote awareness and understanding of mental health topics.
She believes in personalized, client-centered care that honors individual needs and empowers clients to reach their full potential.
Megan Guidry is a dedicated and passionate professional with over 12 years of experience in counseling.
Megan Guidry, LPC-S

He currently resides on a small farm and enjoys spending time with his family, taking care of his animals and practicing photography. His moto is, life is a journey and we should all learn to enjoy the ride.
Rodney is a member of the National Board of Certified Counselors.
Rodney received his Bachelors of Arts in Criminal Justice in 1994 from Dallas Baptist University. and received his Masters in Counseling and his LPC in 2015.
After his criminal justice career Rodney was employed by MHMR in Tarrant County helping individuals with both IDD and Mental Health.
In 1984 he attended the Police Academy in Abilene and worked in the criminal justice field for twenty years.
Rodney is a native of the central Texas area.
Rodney Sikes, LPC

She is available to serve patients of all ages at the AccelHealth Clinic located at 2100 Crockett Dr., Brownwood, Texas.
“I have a passion and love for medicine and caring for others,” Tammy continues, “Even after many years of serving in this role, I still get very excited to learn new things.”
Tammy has worked with Brownwood Regional Medical Center (BRMC), BRMC-One Source Clinic, and Heart of Texas Internal Medicine.
In 2002, Tammy received her Master of Science in Nursing with Family Nurse Practitioner specialty from Patty Hanks Shelton school of Nursing (Hardin Simmons University).
Tammy graduated from Texas Tech University Health Sciences Center in 1997 with a BSN and an undergraduate degree in business.
Tammy has 17 years of work experience in both Family and Internal Medicine while serving as a Registered Nurse for 23 years.
Tammy McCullough, FNP

Veronica has trained in motivational interviewing and has experience in group therapy, life skills training, and relapse prevention.
She has been a team leader, building supervisor, and completed numerous training.
She worked 11 and a half years in a therapeutic community in different counseling roles.
After graduating with honors, she started her career with TDJC working as a counselor intern.
Veronica received her Associated in Applied Science in Chemical Dependency Counseling in May of 2011.
Veronica Smith is a Licensed Chemical Dependency Counselor, LCDC.
Veronica Smith, LCDC

Tiffany was born in Morgan Mill, Texas and has lived in DeLeon, Texas for 26 years.
She believes in the importance of lifestyle changes, including diet, exercise, stress management, and medication management, as needed.
Tiffany provides individual care to patients of all ages from birth to end of life. She strives to involve patients in their own treatment plans, believing in empowering people is what helps the individual make the changes necessary for their improved health.
Tiffany received her Bachelor of Science in Nursing from Tarleton State University in 2005. She went on to earn her Master’s in Nursing from the University of Texas at Arlington, graduating as a Nurse Practitioner in 2019.
Tiffany Torres, FNP

Stephanie is grateful to work with the friendly and experienced AccelHealth team and is accepting pediatric and adult patients.
She is passionate about Family Medicine and Women's Health with an emphasis on preventive care. Stephanie believes health is best managed by preventing conditions before they arise and will regularly remind patients about preventive screenings, review lab results in detail, and share helpful lifestyle modifications prior to prescribing medication.
Stephanie earned her Bachelor of Science in Biology from the University of Texas at Dallas and Master of Physician Assistant Studies from UT Southwestern Medical Center prior to becoming a board certified Physician Assistant.
Stephanie Powdar, FNP

Sheila brings 13 years of hospital experience in medical and cardiac surgery. Sheila is excited to join the medical professional team at AccelHealth and serve the Brown County community.
Sheila holds a National Certification through The American Academy of Nurse Practitioners. As a Nurse Practitioner, Sheila served over 3 years in Washington State and a year in Colorado.
Sheila holds a bachelors degree in Registered Nursing, a Master’s degree in Nursing Administration and Education through Hardin Simmons University in Abilene Texas.
Sheila Spears, FNP is a graduate from Simmons College in Boston MA where she received a Master of Science in Nursing.
Sheila Spears, FNP

Tom D. Byrd, MD.

Dr. Byrd is a native of Brownwood and attended public school in Killeen, Texas.

He is a graduate of The University of Texas (Austin) and attended medical school at The University of Texas Health Science Center in San Antonio.

He completed his residency in Internal Medicine at Baylor University Medical Center in Dallas where he was involved in clinical research.

Tom has practiced medicine in Brownwood since 1995 both in private practice and as a hospitalist where he served as the Director of Hospital Medicine at Brownwood Regional Medical Center.

Tom has a masters certificate in Global Health and has been involved in clinic development in Burundi (Africa) for a number of years. There he serves as a clinical consultant for The Cornerstone Clinic for The Cries of a Child and is passionate about disease prevention, malnutrition, and community health education.

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Michael J. Cloy, PA

Michael is a graduate of Brooke Army Medical Center Academy of Health Sciences, where he was certified as a Respiratory Care Specialist.
He holds a bachelor’s degree in Physician Assistant Studies and a master’s degree in Physician Assistant Studies.

His training and experience also include service as a hospital corpsman and respiratory care practitioner in the U. S. Navy, as well as extensive clinic work in internal medicine, diabetes care and cardiology.

He is board certified by the National Commission of Certification of Physician Assistants and is a member of the Texas Academy of Physician Assistants.

Michael serves as Board President on the Brownwood ISD Board of Trustees, and on Hardin Simmons University Physician Assistant Program Advisory Board as well as guest lecturing at the HSU PA program and as a clinical preceptor for PA students.

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Joe Hubbard, MD

Dr. Hubbard attended the University of Oklahoma where he received a Doctorate of Medicine in 1984 and completed his residency in internal medicine from Texas Tech University in 1987.

Dr. Hubbard has been practicing in the Comanche area since 2008.
Before 2008, Dr. Hubbard practiced in Abilene.

Dr. Hubbard served as a Commissioned Officer, Medical Service Corps in the United States Army Reserve from 1985-1990.

Dr. Hubbard is an internist and is aﬃliated with multiple hospitals in the area, including Abilene Regional Medical Center and Comanche County Medical Center.

He has been providing patent care for more than 20 years.

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Elizabeth Vallejo, FNP

Elizabeth has served patients in Central Texas for over 17 Years in the medical field and 7 of those years as a nurse practitioner.

In 2009, Elizabeth graduated from Texas Tech as a nurse practitioner. She completed her Bachelor of Science in nursing degree at Texas Tech in 2006. Elizabeth is an Allied Health Member of the American College of Gastroenterology.

Having more than 11 years of diverse experiences, especially in Nurse Practitioner, Elizabeth is currently affiliated with the Regional Employee Assistant Program in Brownwood Texas, serving as a Nurse Practitioner with Brown County Gastroenterology, and Pediatrics of Brownwood.

Elizabeth is a sensitive and caring provider with exceptional bilingual (English and Spanish) communication skills.

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Whitney Garland, MPAS, PAC

Whitney Garland, PA-C, is a west Texas native but has been in the Stephenville area since 2010.

She received her Bachelor of Science from Tarleton State University in 2013 and Master of Physician Assistant Studies from Hardin Simmons University in 2019.

While at Hardin Simmons she attended a medical mission trip in Peru.

She is board certified by the National Commission of Certification of Physician Assistants and is a member of the Texas Academy of Physician Assistants.

Whitney is passionate about providing quality, compassionate care.

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Brittany Henderson, RDH

Brittany started her dental career ten years ago as a dental assistant.

She attended Howard College in Big Spring, Texas and graduated in May 2018 with an Associates of Applied Science in Dental Hygiene.

She then transferred to Texas Woman’s University in Denton, Texas and graduated in May 2018 with a Bachelor of Science in Dental Hygiene.

Brittany is also a member of the PHI THETA KAPPA Honor Society.

While in school, Brittany also volunteered her time at Texas Mission of Mercy (TMOM) and Mission of Arlington; organizations that help provide dental care to people across the state of Texas.

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Charles Childers, DO.
Chief Medical Officer

Dr. Childers is a Family Medicine Physician and comes to AccelHealth with over 31 years of experience.

He has served 20 of those years with the Department of Veterans Affairs in Brownwood, Texas.

He is Board Certified in Family Practice by the American Osteopathic Board of Family Physicians.

Dr. Childers is a US Navy Reserve Physician, serving since 05/1989.

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AccelHealth provides affordable health care for patients of all income levels through a sliding fee scale based on income as compared to Federal poverty guidelines.

We are an FTCA deemed Federally Qualified Health Center (FQHC), accredited through The Joint Commission for all services surveyed under the applicable manual(s) noted in the comprehensive Accreditation Manual for Ambulatory Health Care receiving the Gold Seal of Approval four times, as an Accountable Care Organization.

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During the past 54 years, AccelHealth has made significant progress in expanding access to care in Central Texas, particularly for those most in need.

Our Medical and Behavioral Health clinic locations include De Leon, Brownwood and Stephenville and Dental services are provided in the De Leon and Stephenville clinics.

Medical services include: Primary Healthcare, Women’s Health, Family Planning, Immunization, Chronic Care, Laboratory Services and Hepatitis C Screening and Treatment.
Along with Family Dental Care, AccelHealth offers Behavioral Health services including treatment for Addictions and Substance Use Disorders.

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AccelHealth has a very rich history in De Leon, Texas and surrounding communities.

Cross Timbers Health Clinics, now AccelHealth, began providing services to the community in 1967 and was formally chartered in 1986.

We are the only medical health provider in De Leon providing access to a wide array of primary health care services including medical, dental, and behavioral health care for the entire family.

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Ian Patterson, PA-C
Ian received his Bachelor of Science from Hardin-Simmons University in 2017 and Master of Physician Assistant Studies from Hardin Simmons University in 2020.

He is passionate about serving patients and having a positive impact on his community.

While at Hardin-Simmons he participated in a medical mission trip in the Dominican Republic.

He is board certified by the National Commission of Certification of Physician Assistants and is a member of the Texas Academy of Physician Assistants.

He is dedicated to evidence-based practice combined with compassionate care.

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Rogina Gosnell, AGACNP

Rogina graduated from Texas Tech University of Health Sciences Center in 2020 with a degree focus on Adult Gerontology Acute Care Nurse Practitioner.

Her AGACNP scope of practice includes both inpatient and outpatient management of acutely ill adult, as well as management of chronically ill patients.

She is excited to serve as a provider in her home community of Brown County and utilize her knowledge and skills to provide quality and compassionate care to her patients.

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Jessica Waller, FNP

Jessica is a graduate of The University of Texas Arlington, where she received her Master of Science Nursing specializing in family practice in 2020.
She received her bachelor’s degree in Nursing in 2017.

Her training and experience include Radiologic               Technologist and Registered Nurse at Brownwood Regional Medical Center.

Jessica is a dedicated and experienced nurse with over 19 years of experience in the healthcare field including surgical nurse, radiology, and healthcare management.

She has an excellent rapport with local physicians, surgeons and healthcare team members in the         community. Along with providing exceptional medical care for her patients including pediatrics , Jessica is accepting new patients.

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Mackenzie Jordan, RDH

Mackenzie has been a dental hygienist since 2015.
She attended Ranger College in Ranger, Texas and graduated in May 2013 with an Associate of Science.

She attended Howard College in Big Spring, Texas and graduated in May 2015 with an Associate of Applied Science in Dental Hygiene.

She then transferred to Tarleton State University at Stephenville, Texas and graduated in December 2015 with a Bachelor of Science.

While in school, Mackenzie also volunteered her time at Texas Mission of Mercy (TMOM) an organization that helps provide free dental care to people across the state of Texas.

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Lilian Bor, APRN, MBA, MSN, PMHNP-BC

Lilian Bor is originally from Kenya, East Africa. She earned her Bachelor of Science in Nursing from University of Cincinnati in 2011. She later pursued graduate studies and earned a Master of Business Administration degree in Healthcare from University of Mary in 2016. Lilian received a Master of Science in Nursing from University of Texas at Arlington in 2021.

Lilian is board certified by the American Nurses Credentialing Center (ANCC) as a Psychiatric-Mental Health Nurse Practitioner (Across the lifespan). She has received a controlled substance registration certificate (DEA) as well as MAT Waiver for medication assisted treatment of substance use disorders.

She volunteered at the Red-Cross at Blanchfield Army Community hospital in Kentucky and at a diabetes screening clinic in Kenya.

Lilian is married and has 3 children, ages 9, 3 and 1. She enjoys spending time with family on her free time.

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Dr. Rami Koro

Dr. Rami Koro is originally from Jordan, where he was born and raised.

He completed his dental education and practiced dentistry there before moving to the United States.
Dr. Koro is a general, restorative, and cosmetic dentist.

He graduated from Loma Linda university school of dentistry in California, and since then has completed numerous continuing education programs to refine his skills as a dentist.

Dr. Koro has provided services for patients in need, in the suburbs of Chicago, before moving to Dallas 2 years ago.

He is dedicated to evidence based practice combined with compassionate care.

In his spare time he loves to travel and spend time with his family.

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Michelle Jacobs, LPC

Michelle received her Bachelor of Arts in Psychology from the University of Texas at San Antonio in 2011 and Master of Science in Counseling Psychology from Tarleton State University in 2016.

She is originally from Rhode Island and has resided in Stephenville, TX with her family since 2012. She served for 11 years in the U.S. Navy, and has worked for a variety of behavioral health care settings as a counselor, providing care for a wide range of behavioral health concerns.

Michelle is passionate about providing ethical and evidence-based therapy to her clients based on each individuals’ needs. She continues to expand her knowledge of behavioral health practices through continuing education, as well as keeping current with new developments in the behavioral health field.

She is board certified by the Texas State Board of Examiners of Professional Counselors and is a member of the Texas Counseling Association.

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Derek Jesko, LPC

Derek received his Bachelor of Behavioral Science in Psychology in 2017 and Master of Clinical Counseling and Marriage & Family Therapy from Hardin-Simmons University in 2019.

He is passionate about collaborating with patients in an effort to help them make informed decisions, maximize their potential, and live a life of authenticity.

During his time at Hardin-Simmons University, Derek was a member of the Psi Chi National Honors Society for Psychology and participated in community outreach efforts in Abilene, New York City, and Dundrum, Ireland.

Derek is a Licensed Professional Counselor certified by the Texas State Board of Examiners of Professional Counselors dedicated to utilizing an integrative approach in which research-backed treatment modalities and techniques are tailored to meet the unique needs of each client.

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Roy Byrd, MD

Dr. Roy Byrd is a native of Brownwood, TX and is a graduate of Brownwood High School.

He graduated in 2010 from the University of Texas at Austin, and spent the following year as a medical research assistant in the Department of Trauma Surgery at the University of Texas Health Science Center in San Antonio.

In 2015, he received his Doctor of Medicine from the University of Texas School of Medicine in San Antonio.

Dr. Byrd completed his residency training in Internal Medicine at the University of Texas Health Science Center in San Antonio in 2018.

He has been practicing medicine in Brownwood since 2018 as a hospitalist at Brownwood Regional Medical Center.

Dr. Byrd is board certified in Internal Medicine by the American Board of Internal Medicine.

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Shanna Britt, DDS

Dr. Shanna Britt graduated from Baylor College of Dentistry in 1999 and practiced for 22 years in San Antonio as a sole practitioner, bringing much experience to AccelHealth.

Growing up in Odessa, Texas along with family connections in Desdemona, Dr. Britt is familiar with this area and rural life.
Her husband of 14 years is a local rancher, breeding cattle and exotic deer in May, Texas, where they permanently reside.

Dr. Britt is thrilled to be back in the area where she can add value with her long history of providing quality dentistry.

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Brenda Madera, FNP

Brenda Madera is an ANCC board certified Family Nurse Practitioner.
She received her Bachelor of Science in Nursing from Tarleton State University in 2017 then went on to earn her Master’s in Nursing from Angelo State University, graduating as a Nurse Practitioner in 2021.
She is fluent in both English and Spanish.

Brenda strives to provide compassionate, evidence-based care to all of her patients and is especially passionate about whole body wellness and preventative care.
She is a member of the American Nurses Association, Texas Nurses Association, and Texas Nurse Practitioners Association.

Brenda was born in Fort Worth, Texas and grew up in Gorman, Texas. She enjoys traveling with her husband and two children, trying new restaurants, horseback riding, reading, and spending time with friends and family.

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Zachary Alexander, LPC

Zach Alexander earned his Bachelor of Science in Psychology in 2008 from Freed-Hardeman University in Henderson, Tennessee. He went on to complete his Master of Arts in Mental Health Counseling from Argosy University Nashville in 2014. He was first licensed as a Licensed Professional Counselor – Mental Health Service Provider (LPC-MHSP) in Tennessee before returning to Texas and obtaining licensure as a Licensed Professional Counselor (LPC). He is also a National Certified Counselor.

Zach is passionate about helping patients through whatever struggles they may be facing. He believes in the collaborative nature of counseling where the patient is the expert on themselves, and he can bring new tools and techniques appropriate to their situation.

Outside of the office, Zach enjoys spending time with his family, attending local sporting events, and working with his family’s cattle.

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