Doctor profile · Federal record
Dr. George Nassar, MD
Nephrology Physician (CMS: Nephrology) · Houston, TX
- NPI 1639171416
- Accepts Medicare
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6560 Fannin St Ste 1824
Houston, TX 770302735
(713) 790-9080
fax (713) 790-0766
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- December 13, 2022
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Texas #K4168
- Medicaid
- TX #104985002
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639171416. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,971
Distinct HCPCS
10
Medicare allowed
$218,012
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 1,450 | 15 | $0 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 483 | 224 | $111 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 351 | 112 | $77 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 183 | 29 | $363 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 109 | 71 | $79 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 55 | 27 | $49 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 49 | 29 | $120 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 39 | 37 | $51 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 38 | 21 | $302 | |
99153 |
Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 38 | 22 | $11 |
In context: peer comparison
Among 76 peers in Houston Nephrology Physician, average services per provider: 140. This provider delivers 21× the peer median.Open Payments
Industry payments received
All-time total
$37,053
Transactions
111
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 18 | $15,626.18 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 23 | $13,686.01 | |
| Novartis Pharmaceuticals Corporation | 8 | $5,201.05 | |
| Otsuka America Pharmaceutical, INC. | 10 | $353.19 | |
| Medtronic, INC. | 2 | $266.61 | |
| AstraZeneca Pharmaceuticals Lp | 8 | $240.92 | |
| Mallinckrodt Hospital Products INC. | 4 | $220.33 | |
| Travere Therapeutics, INC. | 6 | $208.95 | |
| Amgen INC. | 8 | $200.22 | |
| Veloxis Pharmaceuticals, INC. | 4 | $150.39 | |
| Bayer Healthcare Pharmaceuticals INC. | 6 | $126.73 | |
| Aurinia Pharma U.S., INC. | 6 | $125.89 | |
| Otsuka Pharmaceutical Development & Commercialization, INC. | 1 | $111.54 | |
| Daiichi Sankyo INC. | 4 | $103.24 | |
| GlaxoSmithKline, LLC. | 3 | $93.29 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,893
Patients
621
Total drug cost
$234,857
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 273 | 79 | $2,938 |
| Losartan Potassium | Generic | 200 | 65 | $2,861 |
| Amlodipine Besylate | Generic | 175 | 60 | $1,459 |
| Carvedilol | Generic | 159 | 52 | $2,580 |
| Furosemide | Generic | 139 | 48 | $930 |
| Cinacalcet Hcl | Generic | 138 | 41 | $82,103 |
| Pantoprazole Sodium | Generic | 100 | 35 | $1,705 |
| Nifedipine ER (Nifedipine) | Brand | 98 | 36 | $6,490 |
| Clonidine Hcl | Generic | 96 | 45 | $1,125 |
| Calcitriol | Generic | 93 | 23 | $1,486 |
Hospital affiliations
Frequently asked questions
What is Dr. George Nassar's medical specialty?
Dr. George Nassar practices Nephrology Physician in Houston, TX.
Where does Dr. George Nassar practice?
Dr. George Nassar practices at 6560 Fannin St Ste 1824, Houston, TX 770302735. Office phone: 7137909080.
What is Dr. George Nassar's NPI?
Dr. George Nassar's National Provider Identifier (NPI) is 1639171416, issued by NPPES.
Does Dr. George Nassar accept Medicare assignment?
Yes. Dr. George Nassar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. George Nassar commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.