Doctor profile · Federal record
Dr. John Gresham, M.D.
Interventional Cardiology Physician (CMS: Interventional Cardiology) · Cardiovascular Disease Physician · Cardiovascular Disease Physician · Nuclear Cardiology Physician · San Antonio, TX
- NPI 1619170347
- Accepts Medicare
- 27 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
540 Oak Centre Dr Ste 260
San Antonio, TX 782584767
(210) 499-0448
fax (210) 370-9638
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- September 14, 2022
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RI0011X — NUCC code
- State licenses (2)
- Texas #M6641 · Virginia #0101230320
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1619170347. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,284
Distinct HCPCS
10
Medicare allowed
$553,058
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,646 | 714 | $124 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 699 | 611 | $14 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 535 | 116 | $77 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 489 | 480 | $190 | |
J2785 |
Injection, regadenoson, 0.1 mg | 436 | 109 | $53 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 303 | 219 | $8 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 139 | 31 | $22 | |
A9502 |
Technetium tc-99m tetrofosmin, diagnostic, per study dose | 114 | 103 | $70 | |
78452 |
Nuclear medicine studies of heart muscle at rest and with stress and spect | 95 | 95 | $416 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 95 | 95 | $162 |
In context: peer comparison
Among 24 peers in San Antonio Interventional Cardiology Physician, average services per provider: 122. This provider delivers 43× the peer median.Open Payments
Industry payments received
All-time total
$1,329
Transactions
57
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abiomed | 4 | $212.62 | |
| Novartis Pharmaceuticals Corporation | 16 | $204.99 | |
| Atricure, INC. | 3 | $186.39 | |
| Amgen INC. | 7 | $125.77 | |
| Sanofi-Aventis U.S. LLC | 4 | $83.24 | |
| Esperion Therapeutics, INC. | 4 | $67.19 | |
| Kiniksa Pharmaceuticals International, Plc | 3 | $66.02 | |
| Boston Scientific Corporation | 3 | $64.34 | |
| Actelion Pharmaceuticals US, INC. | 2 | $54.28 | |
| Janssen Pharmaceuticals, INC | 3 | $52.11 | |
| Bayer Healthcare Pharmaceuticals INC. | 3 | $48.43 | |
| Penumbra, INC. | 1 | $32.93 | |
| CVRx, INC. | 1 | $32.39 | |
| Novo Nordisk INC | 2 | $31.75 | |
| Scpharmaceuticals INC. | 1 | $28.15 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,996
Patients
942
Total drug cost
$531,108
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Valsartan | Generic | 349 | 109 | $13,059 |
| Metoprolol Succinate | Generic | 335 | 115 | $5,300 |
| Rosuvastatin Calcium | Generic | 249 | 84 | $4,557 |
| Atorvastatin Calcium | Generic | 245 | 76 | $3,635 |
| Labetalol Hcl | Generic | 245 | 69 | $12,426 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 243 | 85 | $4,235 |
| Xarelto (Rivaroxaban) | Brand | 196 | 48 | $234,574 |
| Furosemide | Generic | 181 | 70 | $1,497 |
| Eliquis (Apixaban) | Brand | 175 | 48 | $219,014 |
| Nebivolol Hcl | Generic | 161 | 51 | $14,486 |
Hospital affiliations
Frequently asked questions
What is Dr. John Gresham's medical specialty?
Dr. John Gresham practices Interventional Cardiology Physician in San Antonio, TX.
Where does Dr. John Gresham practice?
Dr. John Gresham practices at 540 Oak Centre Dr Ste 260, San Antonio, TX 782584767. Office phone: 2104990448.
What is Dr. John Gresham's NPI?
Dr. John Gresham's National Provider Identifier (NPI) is 1619170347, issued by NPPES.
Does Dr. John Gresham accept Medicare assignment?
Yes. Dr. John Gresham accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Gresham commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.