Tammie Chen
Counselor · Oakland, CA
Tammie Chen is a counselor with a practice address in Oakland, California, and NPI 1851628580, issued on Nov 18, 2009. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammie Chen
- Primary taxonomy
- Counselor 101Y00000X
- Practice location
- 268 Grand Ave, Oakland, CA 94610
- Phone
- (510) 835-2777
- Enumerated
- Nov 18, 2009
- Record last updated
- Aug 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20221215001064); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest counselor records → All 13,723 in California → Look up another NPI →
Also registered at 268 Grand Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Laura Coelho, MPHCommunity Health Worker1548622384
- Tenzin DechenCommunity Health Worker1114471240
- Kaveinga FataiCommunity Health Worker1831623537
- Catherine HoClinical Social Worker1710260732
- Walaiporn JacobsCommunity Health Worker1649724972
Verify Tammie Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Asian Health ServicesOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammie Chen among 13,723 counselor records in California
Tammie Chen is one of 13,723 counselor records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 24% of them.
- NPI issued2009 · 24% of these records are older, 71% newer
- In a Medicare fileYes · under 1% of these records are
- In the CMS Doctors and Clinicians fileYes · under 1% of these records are
- Graduated2013 · median 2016 among the 106 with a school on file
- Record last updated2014 · 81% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
764 counselor records list a practice address in Oakland
They are 764 of the 18,558 NPPES records with a practice address in Oakland, and 13,723 counselor records in California.
All 13,723 in California → Every provider in Oakland → Counselor nationwide →
The 8 counselor records with the nearest ZIP codes
- Richard AdamsOakland, CA 946101467954982
- Neda Baraghani, LMFTOakland, CA 946101609484096
- Connie DesautelsOakland, CA 946101902252307
- Sanjev DesilvaOakland, CA 946101356522627
- Gerardo FuentesOakland, CA 946101770748592
- Dana GoldsteinOakland, CA 946101891358941
- Anastasia Gomes, ACSWOakland, CA 946101407240757
- Kelly JohnsonOakland, CA 946101982072252
Common questions
What is Tammie Chen's NPI number?
Tammie Chen's National Provider Identifier (NPI) is 1851628580, issued on Nov 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Tammie Chen located?
The NPPES record lists a practice address at 268 Grand Ave, Oakland, CA, 94610. Phone: (510) 835-2777. Providers update this record themselves, so call before visiting.
How can I verify Tammie Chen's license?
Search the California board that licenses this profession; the NPPES record confirms identity 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.