Doctor profile · Federal record
Dr. Margarita Ontiveros, MD
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · San Antonio, TX
- NPI 1346310968
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 39 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
311 Camden St, Suite 102
San Antonio, TX 782152012
(210) 281-9800
fax (210) 281-1001
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- May 1, 2008
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- Texas #H5196
- Medicaid
- TX #123672105
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346310968. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,144
Distinct HCPCS
10
Medicare allowed
$113,634
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 281 | 188 | $122 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 276 | 209 | $14 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 166 | 133 | $172 | |
93016 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 53 | 53 | $20 | |
J2785 |
Injection, regadenoson, 0.1 mg | 53 | 14 | $51 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 50 | 48 | $182 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 49 | 48 | $66 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 25 | 25 | $211 | |
93280 |
Programming of dual lead pacemaker system | 24 | 20 | $38 | |
93018 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 22 | 21 | $13 |
In context: peer comparison
Among 53 peers in this city , average services per provider: 173. This provider delivers 6.6× the peer median.Open Payments
Industry payments received
All-time total
$5,162
Transactions
105
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Penumbra, Inc. | 7 | $940.64 | |
| Medtronic, Inc. | 5 | $756.72 | |
| AngioDynamics, Inc. | 4 | $641.29 | |
| ABIOMED | 3 | $425.78 | |
| ATRICURE, INC. | 4 | $387.81 | |
| Abbott Laboratories | 4 | $314.14 | |
| Novartis Pharmaceuticals Corporation | 16 | $274.90 | |
| CVRx, Inc. | 6 | $268.21 | |
| Boston Scientific Corporation | 15 | $219.79 | |
| E.R. Squibb & Sons, L.L.C. | 26 | $165.32 | |
| Teleflex LLC | 1 | $130.77 | |
| CARDIVA MEDICAL, INC. | 1 | $120.86 | |
| Merck Sharp & Dohme LLC | 7 | $108.15 | |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 3 | $62.37 | |
| ABBVIE INC. | 3 | $52.96 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,539
Patients
1,325
Total drug cost
$692,897
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Carvedilol | Generic | 510 | 178 | $6,036 |
| Metoprolol Succinate | Generic | 412 | 143 | $8,609 |
| Amlodipine Besylate | Generic | 348 | 133 | $2,322 |
| Rosuvastatin Calcium | Generic | 323 | 117 | $10,112 |
| Isosorbide Mononitrate Er (Isosorbide Mononitrate) | Brand | 262 | 99 | $3,836 |
| Atorvastatin Calcium | Generic | 220 | 73 | $4,607 |
| Nitroglycerin | Generic | 220 | 136 | $4,133 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 213 | 79 | $4,001 |
| Eliquis (Apixaban) | Brand | 202 | 68 | $250,963 |
| Losartan Potassium | Generic | 194 | 77 | $3,067 |
Frequently asked questions
What is Dr. Margarita Ontiveros's medical specialty?
Dr. Margarita Ontiveros practices Cardiovascular Disease Physician in San Antonio, TX.
Where does Dr. Margarita Ontiveros practice?
Dr. Margarita Ontiveros practices at 311 Camden St, San Antonio, TX 782152012. Office phone: 2102819800.
What is Dr. Margarita Ontiveros's NPI?
Dr. Margarita Ontiveros's National Provider Identifier (NPI) is 1346310968, issued by NPPES.
Does Dr. Margarita Ontiveros accept Medicare assignment?
Yes. Dr. Margarita Ontiveros accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margarita Ontiveros 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); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.