BSA Amarillo Diagnostic Clinic

BSA Amarillo Diagnostic Clinic has been offering quality healthcare to the Texas Panhandle for more than 50 years. Our highly-trained staff specializes in adult general and sub-specialty care. All BSA Amarillo Diagnostic Clinic physicians offer patients the highest quality care available and are board certified in their specialty.

Our expert staff is highly skilled in a wide range of specialties, including:

  • Gastroenterology
  • Infectious Diseases
  • Internal Medicine
  • Neurology
  • Nuclear Medicine
  • Pulmonology
  • Rheumatology
  • Sleep Medicine
  • Women’s Services

We offer treatments for a variety of diseases and disorders including:

  • Abnormalities in the organs
  • Acute cold and flu
  • Arthritis, gout and lupus
  • Brain, spinal cord and nervous system disorders
  • Diabetes
  • High blood pressure
  • Infections
  • Intestinal disorders
  • Respiratory disorders
  • Sleep disorders
  • Stroke and cardiac disease

Comprehensive Care for Women

HerCare at BSA Amarillo Diagnostic Clinic offers a comprehensive assessment of the physical, mental, sexual, emotional, spiritual and social health of women. Diagnoses and treatment are based on the latest peer-reviewed research, publications and expert guidelines on women’s health.

HerCare offers patient consultations for:

  • Sexual health including sexual dysfunction
  • Perioperative risk assessment
  • Cardiovascular risk and prevention measures
  • Midlife hormone management therapy
  • Osteoporosis
  • Vulvar disease
  • Well woman exams

Ensuring Safe Travels

BSA Amarillo Diagnostic Clinic’s travel clinic offers patients disease prevention services for their travels across seas. The clinic is supervised by Dr. Taylor Carlisle, a highly-trained infectious diseases physician who is trained in tropical medicine and public health.

The travel clinic offers services for:

  • Immunizations
  • Travel counseling
  • Post-travel health evaluations

It is recommended to have a physician consultation at least six weeks before leaving the country.

Convenient On-Site Pharmacy Services

The BSA Amarillo Diagnostic Clinic Pharmacy is a full-service, independent pharmacy conveniently located inside of BSA Amarillo Diagnostic Clinic.

The pharmacy offers:

  • Affordable prices on medications.
  • Breathing supplies
  • City-wide delivery of prescriptions and medication refill synchronization to ensure your medications are automatically refilled on the same day each month.
  • Diabetic supplies
  • Mail services for delivery of prescriptions to out-of-town residents.
  • The convenience of filling a prescription after appointments.
  • Vaccinations to prevent the spread of disease. We offer vaccinations for the flu, Pneumonia, TDaP, Hepatitis A and B, Shingles and Meningitis.

Fill Your Prescription Online


Daniel Beggs, MD

Richard Ellington, MD

Thomas Johnson, MD

James Lusby, MD

William Shear, MD

Mary Elmquist, GNP-C
GERONTOLOGICAL Nurse Practitioner

Ashley Roberts, FNP-C

Joseph Carlisle, MD
Infectious Diseases

Timothy Mooring, MD

Javier Dieguez, MD

Kayla Williamson, ACNP-C
Acute Care Nurse Practitioner

Ming Chen, MD

Sean Milligan, MD

Tiffany Randle, FNP-C
Family Nurse Practitioner

Bill Byrd, MD
Nuclear Medicine

Ashley Quillin, FNP-C
Family Nurse Practitioner

Holly Mitchell, MD
Internal Medicine

Adrian Pay, MD
Internal Medicine

Joanna Wilson, DO
Internal Medicine

Kyla Beedy, FNP-C
Family Nurse Practitioner

Contact Information

6700 W. 9th Ave.
Amarillo , TX 79106
Phone: (806) 358-0200

Hours: Monday – Thursday 7:30 a.m. – 5:30 p.m.
Friday 7:30 a.m. – 12 p.m. 

BSA Amarillo Diagnostic Clinic Forms

Release of Information Form

as PDF | as RTD

Gastroenterology Patient Questionnaire for Drs. Beggs, Ellington, Johnson, Shear & Lusby

as PDF | as RTD

General Patient Questionnaire for Dr. Holly Mitchell

as PDF | as RTD

HerCare New Patient Questionnaire for Dr. Joanna Wilson

as PDF | as RTD

HerCare Established Patient Questionniare for Dr. Joanna Wilson

as PDF | as RTD

HerCare Authorization for Release of Information for Dr. Joanna Wilson

as PDF | as RTD

Infectious Disease Patient Questionnaire for Dr. J. Taylor Carlisle

as PDF | as RTD

Neurology Patient Questionnaire for Dr. Sean Milligan

as PDF | as RTD

Neurology Patient Questionnaire for Dr. Douglas Lewis

as PDF | as RTD

Pulmonology Patient Questionnaire for Dr. Dieguez

as PDF | as RTD

Rheumatology Patient Questionnaire for Dr. Ming Chen

as PDF | as RTD

Sleep Medicine Patient Questionnaire for Dr. Tim Mooring

as PDF | as RTD

Pulmonology Patient Questionnaire for Dr. Mark Sigler

as PDF | as RTD

BSA Amarillo Diagnostic Clinic Patient Portal