Tammy Nai-Yen Wang, MD
Pediatric Anesthesiology Physician · Stanford, CA
Tammy Nai-Yen Wang, MD is a pediatric anesthesiology physician with a practice address in Stanford, California, and NPI 1619014800, issued on Jan 30, 2007. Check the license (California A89964, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tammy Nai-Yen Wang
- Credential
- MD
- Primary taxonomy
- Pediatric Anesthesiology Physician 207LP3000X
- License number
- A89964 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Jan 30, 2007
- Record last updated
- Apr 11, 2024
- Medicare enrollment
- Enrolled (PECOS I20150921002696); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric anesthesiology physician records → All 240 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Fahim Abbasi, M.D.Internal Medicine Physician1841484037
- Mohamad Abbass, MDNeurological Surgery Physician1679492151
Verify Tammy Nai-Yen Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A89964Check 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
- Lpch Medical Group Div OF LucilePalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Nai-Yen Wang among 240 pediatric anesthesiology physician records in California
Tammy Nai-Yen Wang, MD is one of 240 pediatric anesthesiology physician records with a practice address in California. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 60% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2003 · median 2009 among the 136 with a school on file
- Record last updated2024 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP3000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Anesthesiology Physician providers in California
There are 240 pediatric anesthesiology physician records in California.
All 240 in California → Every provider in Stanford → Pediatric Anesthesiology Physician nationwide →
The 8 pediatric anesthesiology physician records with the nearest ZIP codes
- Melanie Gipp, M.DStanford, CA 943051558688572
- Gerald Goresky, MDCM, FRCPCStanford, CA 943051275677403
- Michael Lennig, MDStanford, CA 943051609166719
- Julianne Mendoza, MDStanford, CA 943051720275316
- Matthew Muffly, MDStanford, CA 943051578767521
- Stephanie Pan, MDStanford, CA 943051558603860
- Felipe Perez, MDStanford, CA 943051508285735
- Radhamangalam Ramamurthi, MDStanford, CA 943051811042047
Common questions
What is Tammy Nai-Yen Wang, MD's NPI number?
Tammy Nai-Yen Wang, MD's National Provider Identifier (NPI) is 1619014800, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Nai-Yen Wang, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Tammy Nai-Yen Wang, MD's license?
NPPES lists California license number A89964, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.