Doctor profile · Federal record
Dr. Gianna Flaaten, NP-C
Nurse Practitioner · Castro Valley, CA
- NPI 1275241119
- 4 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
20401 Santa Maria Ave
Castro Valley, CA 945465609
(510) 216-1086 - Mailing address
-
4132 Krolop RD
Castro Valley, CA 945461220
Credentials & registration
- NPI registered
- November 2022 — 4 yrs on file
- Profile last updated
- March 14, 2026
- Specialty taxonomy
- 363L00000X — NUCC code
- State license (1)
- California #95020792
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275241119. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$150
Transactions
4
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 4 | $149.79 |
By nature of payment
Frequently asked questions
What is Dr. Gianna Flaaten's medical specialty?
Dr. Gianna Flaaten practices Nurse Practitioner in Castro Valley, CA.
Where does Dr. Gianna Flaaten practice?
Dr. Gianna Flaaten practices at 20401 Santa Maria Ave, Castro Valley, CA 945465609. Office phone: 5102161086.
What is Dr. Gianna Flaaten's NPI?
Dr. Gianna Flaaten's National Provider Identifier (NPI) is 1275241119, issued by NPPES.