Internal Medicine · San Antonio, TX
NPI
1255422614
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
7622 Louis Pasteur Dr, Ste. 100
San Antonio, TX, 78229
Phone (210) 614-7840
Groups this clinician bills Medicare through
Medicare paid, 2024
$43K
1,183 services
Medicare patients, 2024
283
Average age 77
Drug cost, 2024
$1.1M
9,538 prescriptions
Company payments, 2025
$127
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Gregory D McCarroll was code 99213 (office e&m - established), 499 times for 258 patients. In total Gregory D McCarroll billed 1,183 services in 36 codes, and Medicare paid $43K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2018-02-21.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 499 | 258 | $55.28 | $28K |
| 36415 Venipuncture Blood Collection | Office | 378 | 210 | $8.65 | $3,270 |
| G0008 Administration of influenza virus vaccine | Office | 25 | 25 | $31.03 | $776 |
| 99212 Office E&M - Established | Office | 21 | 20 | $29.21 | $613 |
| 90661 Vaccine Product | Office | 21 | 21 | $34.39 | $722 |
| 90677 Vaccine Product | Office | 21 | 21 | $289.02 | $6,069 |
| 81003 Clinical Chemistry | Office | 17 | 16 | $2.20 | $37.4 |
| 90471 Vaccine Administration | Office | 15 | 15 | $9.23 | $139 |
| G0009 Administration of pneumococcal vaccine | Office | 15 | 15 | $31.03 | $465 |
| 99214 Office E&M - Established | Office | 14 | 14 | $61.69 | $864 |
By year: 2022 $41K for 1,230 services; 2023 $37K for 1,053 services; 2024 $43K for 1,183 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 378 | 210 | $8.65 | $3,270 |
| 81003 Clinical Chemistry | 17 | 16 | $2.20 | $37.4 |
Medicare prescription drug claims, 2024
In 2024, the drug Gregory D McCarroll prescribed most often to Medicare patients was Atorvastatin Calcium, with 584 prescriptions and refills. In total Gregory D McCarroll wrote 9,538 Medicare prescriptions that cost $1.1M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 584 | 1,776 | 188 | $5,229 |
| Levothyroxine Sodium Generic | 340 | 1,023 | 106 | $3,766 |
| Lisinopril Generic | 308 | 932 | 98 | $2,033 |
| Hydrochlorothiazide Generic | 287 | 835 | 98 | $1,702 |
| Losartan Potassium Generic | 286 | 836 | 93 | $2,533 |
| Rosuvastatin Calcium Generic | 266 | 785 | 96 | $2,367 |
| Amlodipine Besylate Generic | 262 | 800 | 89 | $1,489 |
| Escitalopram Oxalate Generic | 235 | 561 | 71 | $2,535 |
| Jardiance Empagliflozin | 189 | 408 | 59 | $226K |
| Gabapentin Generic | 189 | 402 | 55 | $4,635 |
| Metformin Hcl Generic | 186 | 545 | 62 | $1,437 |
| Tamsulosin Hcl Generic | 157 | 463 | 56 | $2,340 |
| Pravastatin Sodium Generic | 153 | 442 | 45 | $1,361 |
| Furosemide Generic | 145 | 399 | 62 | $925 |
| Metoprolol Succinate Generic | 141 | 392 | 43 | $2,005 |
Brand drugs: 1,315 claims; generic drugs: 8,168 claims; opioid claims: 329.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Gregory D McCarroll $127 ($127 in general payments such as food, travel and fees) from 2 companies. The largest payer was Novo Nordisk Inc with $113.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.