NPPES file of Aug 9, 2026

Vanessa S. Chan, M.D.

Obstetrics & Gynecology Physician · Oakland, CA

Vanessa S. Chan, M.D. is an obstetrics & gynecology physician with a practice address in Oakland, California, and NPI 1114960747, issued on Jun 13, 2006. Check the license (California A95098, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114960747
Name
Vanessa S. Chan
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A95098 CA
Self-reported in NPPES; status is on the state search
Practice location
3300 Webster St, Oakland, CA 94609
Phone
(510) 653-0846
Enumerated
Jun 13, 2006
Record last updated
Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20061213000169); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3300 Webster St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Ansel, M.D.Neuromusculoskeletal Medicine & OMM Physician1114057296
  2. Linda Avery, PTPhysical Therapist1174530653
  3. Lisa Bailey, M.D.Specialist1861462251
  4. Amoreena Berg, MFTMarriage & Family Therapist1114254398
  5. Carolyn Bernstein, RN, NPAdult Health Nurse Practitioner1306146568
  6. Julie Billings, MDProcedural Dermatology Physician1801957584

Verify Vanessa S. Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A95098
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $37.68

2 payments; by number, the most common kind was education; the largest payer was Alkermes, 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.

  1. Vanessa Chan$37.68
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Asian Health ServicesOakland, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Vanessa S. Chan among 5,088 obstetrics & gynecology physician records in California

Vanessa S. Chan, M.D. 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2002 · median 2004 among the 2,700 with a school on file
  • Record last updated2007 · 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).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Lisa Bernard-Pearl, MDOakland, CA 946091750328373
  2. Edward Blumenstock, MDOakland, CA 946091235156738
  3. Michellee Chen, M.D.Oakland, CA 946091528141306
  4. Yvette Gentry, M.D.Oakland, CA 946091467498634
  5. Magdy Girgis, MDOakland, CA 946091710942677
  6. Goldee Gross, MDOakland, CA 946091235194176
  7. Thomas Hambrick, MDOakland, CA 946091215992151
  8. William Isenberg, MDOakland, CA 946091265497101

Common questions

What is Vanessa S. Chan, M.D.'s NPI number?

Vanessa S. Chan, M.D.'s National Provider Identifier (NPI) is 1114960747, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Vanessa S. Chan, M.D. located?

The NPPES record lists a practice address at 3300 Webster St, Oakland, CA, 94609. Phone: (510) 653-0846. Providers update this record themselves, so call before visiting.

How can I verify Vanessa S. Chan, M.D.'s license?

NPPES lists California license number A95098, 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.