Doctor profile · Federal record
Dr. Tammy Hwang, NP
Family Nurse Practitioner (CMS: Nurse Practitioner) · San Jose, CA
- NPI 1639681513
- Accepts Medicare
- MIPS 83.5 / 100 · 2023
- 9 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
2506 Samaritan CT
San Jose, CA 951244001
(408) 523-3870 - Additional location
-
1333 Meridian Ave
San Jose, CA 951255212
(408) 445-3400
fax (408) 445-1683 - Additional location
-
1642 E Capitol Expy
San Jose, CA 951211800
(408) 445-3431
fax (408) 445-3400 - Additional location
-
2039 Forest Ave Ste 105
San Jose, CA 951284815
(408) 947-2929 - Additional location
-
455 OConnor Dr Ste 200
San Jose, CA 951281632
(408) 283-7676 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Show 2 more locations
Credentials & registration
- NPI registered
- October 2017 — 9 yrs on file
- Profile last updated
- June 5, 2025
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- California #95007792
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639681513. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$18
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Hologic Sales and Service, LLC | 1 | $18.03 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
758
Patients
249
Total drug cost
$47,495
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 111 | 42 | $2,488 |
| Metformin Hcl | Generic | 91 | 31 | $1,029 |
| Lisinopril | Generic | 73 | 29 | $962 |
| Levothyroxine Sodium | Generic | 63 | 18 | $839 |
| Omeprazole | Generic | 61 | 18 | $567 |
| Losartan Potassium | Generic | 54 | 21 | $703 |
| Amlodipine Besylate | Generic | 53 | 27 | $918 |
| Simvastatin | Generic | 47 | 14 | $616 |
| Gabapentin | Generic | 37 | 20 | $1,163 |
| Hydrochlorothiazide | Generic | 34 | 17 | $191 |
Frequently asked questions
What is Dr. Tammy Hwang's medical specialty?
Dr. Tammy Hwang practices Family Nurse Practitioner in San Jose, CA.
Where does Dr. Tammy Hwang practice?
Dr. Tammy Hwang practices at 2506 Samaritan CT, San Jose, CA 951244001. Office phone: 4085233870.
What is Dr. Tammy Hwang's NPI?
Dr. Tammy Hwang's National Provider Identifier (NPI) is 1639681513, issued by NPPES.
Does Dr. Tammy Hwang accept Medicare assignment?
Yes. Dr. Tammy Hwang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.