Doctor profile · Federal record
Dr. John Frierson, M.D.
Interventional Cardiology Physician (CMS: Interventional Cardiology) · Cardiovascular Disease Physician · Internal Medicine Physician · San Antonio, TX
- NPI 1326021015
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 44 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1200 Brooklyn Ave, Ste 120
San Antonio, TX 782124816
(210) 271-7266
fax (210) 226-8411
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- March 29, 2022
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207RI0011X — NUCC code
- State license (1)
- Texas #G3371
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326021015. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,079
Distinct HCPCS
10
Medicare allowed
$343,718
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 771 | 318 | $171 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 765 | 340 | $13 | |
93923 |
Complete ultrasound study of arm and leg arteries | 311 | 299 | $114 | |
93880 |
Ultrasound of both sides of head and neck blood flow | 226 | 223 | $182 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 224 | 217 | $182 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 153 | 140 | $122 | |
93351 |
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | 116 | 115 | $207 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 98 | 66 | $114 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 81 | 81 | $66 | |
93356 |
Heart muscle strain imaging | 57 | 57 | $35 |
In context: peer comparison
Among 24 peers in this city , average services per provider: 122. This provider delivers 25× the peer median.Open Payments
Industry payments received
All-time total
$291
Transactions
14
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 5 | $92.14 | |
| Novo Nordisk Inc | 3 | $52.38 | |
| Boston Scientific Corporation | 2 | $51.64 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 2 | $41.40 | |
| Acist Medical Systems, Inc. | 1 | $31.81 | |
| Abbott Laboratories | 1 | $21.80 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,905
Patients
1,694
Total drug cost
$97,882
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 624 | 209 | $11,683 |
| Ezetimibe | Generic | 556 | 176 | $22,617 |
| Amlodipine Besylate | Generic | 490 | 175 | $4,021 |
| Metoprolol Succinate | Generic | 472 | 157 | $13,710 |
| Losartan Potassium | Generic | 377 | 124 | $5,886 |
| Doxazosin Mesylate | Generic | 370 | 134 | $10,433 |
| Carvedilol | Generic | 265 | 95 | $3,977 |
| Rosuvastatin Calcium | Generic | 242 | 82 | $5,360 |
| Spironolactone | Generic | 238 | 84 | $4,102 |
| Furosemide | Generic | 228 | 91 | $1,488 |
Hospital affiliations
Frequently asked questions
What is Dr. John Frierson's medical specialty?
Dr. John Frierson practices Interventional Cardiology Physician in San Antonio, TX.
Where does Dr. John Frierson practice?
Dr. John Frierson practices at 1200 Brooklyn Ave, San Antonio, TX 782124816. Office phone: 2102717266.
What is Dr. John Frierson's NPI?
Dr. John Frierson's National Provider Identifier (NPI) is 1326021015, issued by NPPES.
Does Dr. John Frierson accept Medicare assignment?
Yes. Dr. John Frierson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Frierson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Complete ultrasound study of arm and leg arteries (HCPCS 93923). Source: CMS Medicare Physician & Other Practitioners file.