Vivian Ty Wan, DO
Obstetrics & Gynecology Physician · Mountain View, CA
Vivian Ty Wan, DO is an obstetrics & gynecology physician with a practice address in Mountain View, California, and NPI 1659832251, issued on Mar 26, 2019. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Vivian Ty Wan
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 322276 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2495 Hospital Dr Ste 670, Mountain View, CA 94040
- Phone
- (650) 396-8110
- Enumerated
- Mar 26, 2019
- Record last updated
- Oct 2, 2024
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2495 Hospital Dr Ste 670
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Azad, MDObstetrics & Gynecology Physician1457531543
- Pooja Gupta, M.DObstetrics & Gynecology Physician1336330786
- Christina Lam, D.O.Obstetrics & Gynecology Physician1114454600
Verify Vivian Ty Wan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $459.20
13 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Vivian Ty Wan among 5,088 obstetrics & gynecology physician records in California
Vivian Ty Wan, DO is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2024 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 obstetrics & gynecology physician records list a practice address in Mountain View
They are 49 of the 2,467 NPPES records with a practice address in Mountain View, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Mountain View → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Holly Beeman, MDMountain View, CA 940401447232210
- Un Hui Har, M.D.Mountain View, CA 940401861593253
- Richard Hill, MDMountain View, CA 940401568579878
- Catherine HillMountain View, CA 940401326155656
- Jenny-Jean Hua, MDMountain View, CA 940401740397074
- Takeshi Inouye, MDMountain View, CA 940401386751626
- Nina Jaki, MDMountain View, CA 940401982711222
- Yin Lim, MDMountain View, CA 940401306854526
Common questions
What is Vivian Ty Wan, DO's NPI number?
Vivian Ty Wan, DO's National Provider Identifier (NPI) is 1659832251, issued on Mar 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Ty Wan, DO located?
The NPPES record lists a practice address at 2495 Hospital Dr Ste 670, Mountain View, CA, 94040. Phone: (650) 396-8110. Providers update this record themselves, so call before visiting.
How can I verify Vivian Ty Wan, DO's license?
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.