Doctor profile · Federal record
Dr. Hassan Alissa, MD
Rheumatology Physician · Rheumatology Physician · San Marcos, TX
- NPI 1770522633
- MIPS 66.7 / 100 · 2023
- 20 yrs on file
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1340 Wonder World Dr, Bldg.2, Suite 2203
San Marcos, TX 786667598
(512) 667-7123
fax (512) 667-7328
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- February 14, 2014
- Specialty taxonomy
- 207RR0500X — NUCC code
- State licenses (2)
- Missouri #2000160315 · Texas #M7820
- Medicaid
- MO #205333818
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770522633. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,720
Distinct HCPCS
7
Medicare allowed
$177,215
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,078 | 446 | $118 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 881 | 116 | $1 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 494 | 312 | $85 | |
96372 |
Injection of drug or substance under skin or into muscle | 187 | 93 | $13 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 42 | 11 | $26 | |
20611 |
Aspiration and/or injection of fluid large joint using ultrasound guidance | 27 | 21 | $92 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $135 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 225. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$983
Transactions
48
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 12 | $156.14 | |
| Amgen Inc. | 7 | $139.56 | |
| Janssen Biotech, Inc. | 3 | $74.25 | |
| AstraZeneca Pharmaceuticals LP | 2 | $69.08 | |
| GlaxoSmithKline, LLC. | 3 | $64.61 | |
| PFIZER INC. | 4 | $59.72 | |
| E.R. Squibb & Sons, L.L.C. | 3 | $58.22 | |
| Aurinia Pharma U.S., Inc. | 2 | $51.88 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 2 | $48.99 | |
| Lilly USA, LLC | 2 | $47.31 | |
| Genentech USA, Inc. | 2 | $43.91 | |
| UCB, Inc. | 2 | $42.08 | |
| Novartis Pharmaceuticals Corporation | 2 | $39.02 | |
| Almatica Pharma LLC | 1 | $24.89 | |
| Teva Pharmaceuticals USA, Inc. | 1 | $22.44 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,653
Patients
675
Total drug cost
$37,558
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 370 | 178 | $3,038 |
| Hydroxychloroquine Sulfate | Generic | 300 | 161 | $13,275 |
| Methotrexate (Methotrexate Sodium) | Brand | 117 | 56 | $3,592 |
| Omeprazole | Generic | 110 | 30 | $753 |
| Leflunomide | Generic | 109 | 50 | $4,374 |
| Tramadol Hcl | Generic | 103 | 23 | $994 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 97 | 11 | $3,291 |
| Duloxetine Hcl | Generic | 68 | 24 | $1,542 |
| Meloxicam | Generic | 64 | 28 | $215 |
| Sulfasalazine | Generic | 60 | 29 | $1,796 |
Frequently asked questions
What is Dr. Hassan Alissa's medical specialty?
Dr. Hassan Alissa practices Rheumatology Physician in San Marcos, TX.
Where does Dr. Hassan Alissa practice?
Dr. Hassan Alissa practices at 1340 Wonder World Dr, San Marcos, TX 786667598. Office phone: 5126677123.
What is Dr. Hassan Alissa's NPI?
Dr. Hassan Alissa's National Provider Identifier (NPI) is 1770522633, issued by NPPES.
What procedures does Dr. Hassan Alissa commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.