Thien Gangopadyhay, FNP
Family Nurse Practitioner · Oakland, CA
Thien Gangopadyhay, FNP is a family nurse practitioner with a practice address in Oakland, California, and NPI 1952586232, issued on Jan 4, 2008. Check the license (California 15629, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thien Gangopadyhay
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 15629 CA
Self-reported in NPPES; status is on the state search - Practice location
- 818 Webster Street, Oakland, CA 94607
- Phone
- (510) 986-6830
- Enumerated
- Jan 4, 2008
- Record last updated
- Oct 7, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110803000219); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 818 Webster Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryu Cheng, LCSWClinical Social Worker1023461175
- Thanh Dinh, NPFamily Nurse Practitioner1942699251
- Jenny Lam, LCSWClinical Social Worker1831575901
- Daniel Park, M.D.Internal Medicine Physician1073691838
- Jenny RileyFamily Medicine Physician1508087313
- Natsuko Takakuwa, MDPediatrics Physician1689093049
Verify Thien Gangopadyhay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15629Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family nurse practitioner in 2024
91 Medicare Part D claims for 33 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Oxybutynin Chloride Er18 claims
- Gabapentin17 claims
- Tamsulosin Hcl13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- County OF San MateoSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thien Gangopadyhay among 16,966 family nurse practitioner records in California
Thien Gangopadyhay, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 13% of them.
- NPI issued2008 · 13% of these records are older, 85% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2004 · median 2019 among the 6,793 with a school on file
- Record last updated2015 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
205 family nurse practitioner records list a practice address in Oakland
They are 205 of the 18,558 NPPES records with a practice address in Oakland, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Oakland → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Andrea Anderson, FNP PHDOakland, CA 946071265468375
- Maria Cho, FNP-BCOakland, CA 946071912422528
- Junjian DengOakland, CA 946071881240091
- Thanh Dinh, NPOakland, CA 946071942699251
- Carrie Evans, FNPOakland, CA 946071235565524
- Macy Lieu, DNPOakland, CA 946071003214503
- Charles Lumboy, NPOakland, CA 946071801284096
- Eunice Pai, NPOakland, CA 946071528459302
Common questions
What is Thien Gangopadyhay, FNP's NPI number?
Thien Gangopadyhay, FNP's National Provider Identifier (NPI) is 1952586232, issued on Jan 4, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Thien Gangopadyhay, FNP located?
The NPPES record lists a practice address at 818 Webster Street, Oakland, CA, 94607. Phone: (510) 986-6830. Providers update this record themselves, so call before visiting.
How can I verify Thien Gangopadyhay, FNP's license?
NPPES lists California license number 15629, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Thien Gangopadyhay, FNP prescribe under Medicare Part D?
In 2024, Thien Gangopadyhay, FNP had 91 Medicare Part D claims for 33 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.