Doctor profile · Federal record
Dr. Gretel D'Souza, M.D.
Rheumatology Physician (CMS: Rheumatology) · Student in an Organized Health Care Education/Training Program · Sylmar, CA
- NPI 1679138531
- Accepts Medicare
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
14445 Olive View Dr
Sylmar, CA 913421437
(747) 210-3205
fax (805) 569-8358 - Additional location
-
Sbch, Medical Education, 400 W Pueblo Street
Santa Barbara, CA 93015
(805) 569-7315
Credentials & registration
- NPI registered
- May 2019 — 7 yrs on file
- Profile last updated
- July 27, 2022
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #178675
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679138531. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$1,469
Transactions
35
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 9 | $317.43 | |
| Abbvie INC. | 4 | $275.25 | |
| AstraZeneca Pharmaceuticals Lp | 2 | $238.93 | |
| Aurinia Pharma U.S., INC. | 4 | $217.34 | |
| Novartis Pharmaceuticals Corporation | 7 | $161.21 | |
| GlaxoSmithKline, LLC. | 4 | $88.23 | |
| Janssen Biotech, INC. | 1 | $59.99 | |
| Ucb, INC. | 1 | $36.64 | |
| Fresenius Kabi USA, LLC | 1 | $24.92 | |
| Janssen Scientific Affairs, LLC | 1 | $24.89 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $24.02 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
162
Patients
41
Total drug cost
$40,327
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 37 | 14 | $2,048 |
| Hydroxychloroquine Sulfate | Generic | 33 | 16 | $2,657 |
| Prednisone | Generic | 22 | 11 | $329 |
| Enbrel Sureclick (Etanercept) | Brand | 17 | 0 | $32,435 |
| Omeprazole | Generic | 15 | 0 | $428 |
| Gabapentin | Generic | 14 | 0 | $1,236 |
| Alendronate Sodium | Generic | 13 | 0 | $314 |
| Pilocarpine Hcl | Generic | 11 | 0 | $881 |
Frequently asked questions
What is Dr. Gretel D'Souza's medical specialty?
Dr. Gretel D'Souza practices Rheumatology Physician in Sylmar, CA.
Where does Dr. Gretel D'Souza practice?
Dr. Gretel D'Souza practices at 14445 Olive View Dr, Sylmar, CA 913421437. Office phone: 7472103205.
What is Dr. Gretel D'Souza's NPI?
Dr. Gretel D'Souza's National Provider Identifier (NPI) is 1679138531, issued by NPPES.
Does Dr. Gretel D'Souza accept Medicare assignment?
Yes. Dr. Gretel D'Souza accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.