Name: Dr. Alan W. Keister
Specialty: Internal Medicine (General Internal Medicine)
Qualification/Board Certification: Board Certified in Internal Medicine
Affiliation: Amarillo Medical Specialists, Llp
Locations: Amarillo, Texas
Languages Spoken: English
Accepting New Patients: Yes
NPI Number: 1255373635
About the Doctor
Dr. Alan W. Keister is a board-certified internist practicing in Amarillo, Texas, with over 21 years of experience. He earned his medical degree from the University of Texas Southwestern Medical School and completed his residency in Internal Medicine at Vanderbilt University Medical Center. Dr. Keister is affiliated with multiple hospitals in the area, including BSA Hospital and Northwest Texas Healthcare System-Amarillo.
Patient Awards & Recognition:
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Patients Recommend
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Expert in 47 conditions
Patient Experience Summary:
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Very Positive (4/5) for provider’s follow-up
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Positive (3/5) for amount of time with patient
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Very Positive (4/5) for provider’s attitude
Education & Training
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Medical School: University of Texas Southwestern Medical School
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Residency: Internal Medicine – Vanderbilt University Medical Center, 1996–2000
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Fellowship/Additional Training: None specified
Medical Conditions Treated
Dr. Keister specializes in adult primary care and the management of chronic medical conditions. He has expertise in an extensive range of 47 conditions, with particular focus on cardiovascular, arthritic, and metabolic disorders.
Common conditions include:
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Chronic hypertension (high blood pressure)
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Rheumatoid arthritis (expertise area)
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High cholesterol (hyperlipidemia)
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Coronary artery disease (ischemic heart disease/atherosclerosis)
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Diabetes (Type 1 and Type 2)
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Osteoarthritis
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Heart failure
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Chronic kidney disease
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Obesity and metabolic syndrome
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Thyroid disorders (hypothyroidism, hyperthyroidism)
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Anemia
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Chronic obstructive pulmonary disease (COPD)
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Asthma
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Gastroesophageal reflux disease (GERD)
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Depression and anxiety
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Osteoporosis
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Gout
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Peripheral vascular disease
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Atrial fibrillation
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Pneumonia and respiratory infections
Medical Procedures Performed
Dr. Keister provides a range of diagnostic and preventive procedures as part of adult primary care.
Procedures include:
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Comprehensive physical examinations
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Blood pressure monitoring and management
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Cholesterol and lipid panel testing
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Blood glucose testing and diabetes monitoring
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Electrocardiogram (EKG/ECG) for heart evaluation
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Spirometry (lung function testing)
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Urinalysis and basic laboratory testing
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Immunizations and vaccinations (flu, pneumonia, shingles, COVID-19, etc.)
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Preventive health screenings (cancer, cardiovascular, metabolic)
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Weight management and metabolic assessment
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Joint injection for arthritis
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Skin biopsy
Services Offered
Dr. Keister provides comprehensive internal medicine services for adult patients, focusing on primary care, chronic disease management, and preventive health. His practice, Amarillo Medical Specialists, Llp, offers thorough new patient evaluations, ongoing management of hypertension, diabetes, high cholesterol, arthritis, and heart disease, as well as preventive screenings and health maintenance. Patients appreciate his follow-up care and caring attitude, though some note that time spent during appointments could be improved. With expertise in 47 conditions, Dr. Keister is well-equipped to manage complex, multi-morbid adult patients. He works within a large multi-specialty group, allowing for seamless referrals to cardiologists, rheumatologists, endocrinologists, and other specialists.
Detailed services include:
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Comprehensive new patient consultations – Full medical history, physical exam, and baseline laboratory evaluation
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Chronic disease management – Long-term treatment for hypertension, diabetes, heart failure, high cholesterol, coronary artery disease, and rheumatoid arthritis
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Preventive care – Annual wellness visits, immunizations, cancer screenings (colon, breast, prostate), and cardiovascular risk assessment
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Hypertension management – Blood pressure monitoring, medication adjustment, and lifestyle counseling
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Diabetes care – Blood glucose management, medication optimization (oral agents, insulin), and complication screening (eye, kidney, nerve)
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Lipid management – Cholesterol testing and treatment with statins or other therapies
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Heart disease management – Coronary artery disease risk reduction, medication management, and coordination with cardiology
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Arthritis care – Management of rheumatoid arthritis and osteoarthritis, including pain management, anti-inflammatory medications, and referral to rheumatology
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Respiratory care – Management of COPD and asthma, including inhaler therapy and pulmonary function testing
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Thyroid disorder management – Hormone replacement for hypothyroidism and anti-thyroid therapy for hyperthyroidism
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Acute illness care – Diagnosis and treatment of infections, respiratory issues, and minor injuries
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Medication management – Prescribing, adjusting, and monitoring medications for chronic conditions, including polypharmacy
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Coordination of care – Referrals to cardiologists, rheumatologists, endocrinologists, nephrologists, pulmonologists, and other specialists
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Patient education – Dietary guidance, exercise recommendations, disease prevention strategies, and medication adherence counseling
Accepted Insurances
Dr. Keister accepts a wide range of insurance plans, including Medicaid.
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Baylor Scott and White (HMO)
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Cigna (PPO)
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Elevance (EPO, HMO, Medicare, POS, PPO)
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Humana (Medicare, PPO)
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United Healthcare (HMO, Medicaid, Medicare, POS, PPO)
Practice Locations
Address: 9092 Westgate Pkwy W, Amarillo, TX 79124
Phone: (806) 355-9741
Hospital Affiliations
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BSA Hospital – Amarillo, TX
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Northwest Texas Healthcare System-Amarillo – Amarillo, TX
Cardiologist
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