Doctor profile · Federal record
Dr. Alan Keister, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Amarillo, TX
- NPI 1255373635
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9092 Westgate Pkwy W
Amarillo, TX 791242441
(806) 355-9741
fax (806) 356-0045
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- September 25, 2025
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Texas #K9315
- Medicaid
- TX #038789602
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255373635. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
31,969
Distinct HCPCS
10
Medicare allowed
$802,955
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1071 |
Injection, testosterone cypionate, 1 mg | 7,700 | 11 | $0 | |
36415 |
Insertion of needle into vein for collection of blood sample | 2,093 | 1,008 | $5 | |
80053 |
Blood test, comprehensive group of blood chemicals | 2,008 | 1,003 | $10 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,931 | 1,003 | $8 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 1,839 | 228 | $60 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,574 | 897 | $122 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 1,540 | 677 | $86 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 1,277 | 853 | $3 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 1,251 | 854 | $13 | |
83721 |
Ldl cholesterol level | 1,239 | 851 | $10 |
In context: peer comparison
Among 33 peers in Amarillo Internal Medicine Physician, average services per provider: 205. This provider delivers 156× the peer median.Open Payments
Industry payments received
All-time total
$1,732
Transactions
106
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 23 | $295.19 | |
| Novo Nordisk INC | 16 | $272.76 | |
| E.R. Squibb & Sons, L.L.C. | 13 | $188.42 | |
| Abbvie INC. | 14 | $186.28 | |
| AstraZeneca Pharmaceuticals Lp | 8 | $143.64 | |
| Amgen INC. | 7 | $104.86 | |
| Inspire Medical Systems, INC. | 2 | $100.45 | |
| Phathom Pharmaceuticals, INC. | 5 | $88.09 | |
| Novartis Pharmaceuticals Corporation | 3 | $72.41 | |
| Lilly USA, LLC | 4 | $66.13 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 3 | $59.52 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 3 | $52.85 | |
| Astellas Pharma US INC | 2 | $32.57 | |
| GlaxoSmithKline, LLC. | 2 | $30.35 | |
| Abbott Laboratories | 1 | $20.33 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
6,057
Patients
1,730
Total drug cost
$88,319
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 935 | 245 | $13,430 |
| Atorvastatin Calcium | Generic | 741 | 217 | $9,881 |
| Gabapentin | Generic | 413 | 126 | $9,224 |
| Lisinopril | Generic | 402 | 127 | $3,852 |
| Amlodipine Besylate | Generic | 382 | 111 | $4,001 |
| Tramadol Hcl | Generic | 376 | 108 | $2,336 |
| Trazodone Hcl | Generic | 375 | 102 | $4,368 |
| Omeprazole | Generic | 366 | 116 | $5,489 |
| Losartan Potassium | Generic | 352 | 97 | $4,641 |
| Potassium Chloride | Generic | 335 | 109 | $12,417 |
Hospital affiliations
Frequently asked questions
What is Dr. Alan Keister's medical specialty?
Dr. Alan Keister practices Internal Medicine Physician in Amarillo, TX.
Where does Dr. Alan Keister practice?
Dr. Alan Keister practices at 9092 Westgate Pkwy W, Amarillo, TX 791242441. Office phone: 8063559741.
What is Dr. Alan Keister's NPI?
Dr. Alan Keister's National Provider Identifier (NPI) is 1255373635, issued by NPPES.
Does Dr. Alan Keister accept Medicare assignment?
Yes. Dr. Alan Keister accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Keister commonly perform?
Top Medicare-reported procedures in 2023: Injection, testosterone cypionate, 1 mg (HCPCS J1071); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, comprehensive group of blood chemicals (HCPCS 80053). Source: CMS Medicare Physician & Other Practitioners file.