Internal Medicine, Nephrology · Houston, TX
NPI
1639171416
Since 2005
Specialty
Internal Medicine, Nephrology
Code 207RN0300X
Group practices
2
Medicare group memberships
Hospitals
5
Hospital affiliations
6560 Fannin St Ste 1824
Houston, TX, 77030
Phone (713) 790-9080
Groups this clinician bills Medicare through
Medicare paid, 2024
$224K
2,870 services
Medicare patients, 2024
398
Average age 65
Drug cost, 2024
$725K
4,050 prescriptions
Company payments, 2025
$18K
From 26 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by George M Nassar was code Q9967 (low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml), 1,100 times for 14 patients. In total George M Nassar billed 2,870 services in 46 codes, and Medicare paid $224K.
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2022-12-13.
| Code |
|---|
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | Office | 1,100 | 14 | $0.10 | $111 |
| 99214 Office E&M - Established | Office | 388 | 171 | $92.08 | $36K |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 263 | 126 | $13.27 | $3,491 |
| 99232 Hospital E&M - Subsequent | Facility | 222 | 87 | $63.94 | $14K |
| 90960 ESRD Related Services (not dialysis) | Office | 154 | 39 | $300.08 | $46K |
| 90961 ESRD Related Services (not dialysis) | Office | 131 | 40 | $244.71 | $32K |
| 99213 Office E&M - Established | Office | 83 | 52 | $71.97 | $5,973 |
| 99231 Hospital E&M - Subsequent | Facility | 50 | 26 | $38.56 | $1,928 |
| 99490 Chronic, Principal, and Transitional Care Management | Office | 47 | 22 | $53.80 | $2,529 |
| 99215 Office E&M - Established | Office | 46 | 30 | $141.32 | $6,501 |
| 99233 Hospital E&M - Subsequent | Facility | 42 | 25 | $98.72 | $4,146 |
| 99439 Chronic, Principal, and Transitional Care Management | Office | 39 | 22 | $41.15 | $1,605 |
| 99152 Anesthesia | Office | 32 | 30 | $42.59 | $1,363 |
| 99153 Anesthesia | Office | 25 | 11 | $10.00 | $250 |
| 99495 Chronic, Principal, and Transitional Care Management | Office | 23 | 20 | $169.04 | $3,888 |
By year: 2022 $181K for 2,658 services; 2023 $241K for 3,107 services; 2024 $224K for 2,870 services.
Medicare prescription drug claims, 2024
In 2024, the drug George M Nassar prescribed most often to Medicare patients was Prednisone, with 301 prescriptions and refills. In total George M Nassar wrote 4,050 Medicare prescriptions that cost $725K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Prednisone Generic | 301 | 614 | 76 | $2,247 |
| Losartan Potassium Generic | 263 | 715 | 84 | $2,524 |
| Cinacalcet Hcl Generic | 193 | 355 | 39 | $92K |
| Carvedilol Generic | 185 | 445 | 70 | $1,497 |
| Furosemide Generic | 144 | 310 | 45 | $745 |
| Amlodipine Besylate Generic | 139 | 369 | 58 | $1,225 |
| Nifedipine Er Nifedipine | 139 | 346 | 48 | $4,622 |
| Clonidine Hcl Generic | 121 | 247 | 49 | $1,026 |
| Calcitriol Generic | 107 | 243 | 29 | $1,461 |
| Metoprolol Succinate Generic | 103 | 252 | 32 | $1,423 |
| Atorvastatin Calcium Generic | 102 | 257 | 36 | $957 |
| Sevelamer Carbonate Generic | 97 | 188 | 37 | $19K |
| Farxiga Dapagliflozin Propanediol | 94 | 190 | 20 | $102K |
| Potassium Chloride Generic | 93 | 185 | 23 | $2,217 |
| Hydralazine Hcl Generic | 92 | 225 | 38 | $1,759 |
Brand drugs: - claims; generic drugs: 3,627 claims; opioid claims: 13.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid George M Nassar $18K ($18K in general payments such as food, travel and fees) from 26 companies. The largest payer was Lilly USA, LLC with $7,905.
| Company | Payments | Amount |
|---|---|---|
| Lilly USA, LLC LLY | 8 | $7,905 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 8 | $5,756 |
| Amgen Inc. AMGN | 4 | $2,268 |
| Mallinckrodt Hospital Products Inc. | 6 | $349 |
| Novartis Pharmaceuticals Corporation NVS | 9 | $287 |
| Otsuka America Pharmaceutical, Inc. 4578.T | 10 | $236 |
| Takeda Pharmaceuticals U.S.A., Inc. TAK | 5 | $223 |
| Veloxis Pharmaceuticals, Inc. | 6 | $196 |
| Idorsia Pharmaceuticals US Inc | 2 | $180 |
| AstraZeneca Pharmaceuticals LP AZN | 7 | $142 |
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.