Doctor profile · Federal record
Dr. Tammy Nguyen, OD
Optometrist (CMS: Optometry) · San Mateo, CA
- NPI 1396864575
- Accepts Medicare
- MIPS 80.0 / 100 · 2023
- 26 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
50 S San Mateo Dr, Suite 200
San Mateo, CA 944013857
(650) 342-4595
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- California #OPT 11827 TPA
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396864575. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$610
Transactions
22
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alcon Vision LLC | 7 | $257.84 | |
| Bausch & Lomb Americas Inc. | 4 | $91.00 | |
| Oyster Point Pharma, Inc. | 3 | $70.58 | |
| Tarsus Pharmaceuticals, Inc. | 2 | $45.56 | |
| Thea Pharma Inc. | 2 | $45.20 | |
| Amgen Inc. | 1 | $29.29 | |
| SUN PHARMACEUTICAL INDUSTRIES INC. | 1 | $28.44 | |
| ABBVIE INC. | 1 | $25.92 | |
| Johnson & Johnson Surgical Vision, Inc. | 1 | $15.91 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
273
Patients
91
Total drug cost
$83,018
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 86 | 31 | $2,094 |
| Lumigan (Bimatoprost) | Brand | 44 | 19 | $28,875 |
| Timolol Maleate | Generic | 43 | 17 | $673 |
| Restasis (Cyclosporine) | Brand | 30 | 13 | $27,098 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 27 | 11 | $1,293 |
| Brimonidine Tartrate | Generic | 15 | 0 | $2,290 |
| Simbrinza (Brinzolamide/Brimonidine Tart) | Brand | 14 | 0 | $4,317 |
| Xiidra (Lifitegrast) | Brand | 14 | 0 | $16,378 |
Frequently asked questions
What is Dr. Tammy Nguyen's medical specialty?
Dr. Tammy Nguyen practices Optometrist in San Mateo, CA.
Where does Dr. Tammy Nguyen practice?
Dr. Tammy Nguyen practices at 50 S San Mateo Dr, San Mateo, CA 944013857. Office phone: 6503424595.
What is Dr. Tammy Nguyen's NPI?
Dr. Tammy Nguyen's National Provider Identifier (NPI) is 1396864575, issued by NPPES.
Does Dr. Tammy Nguyen accept Medicare assignment?
Yes. Dr. Tammy Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.