NPPES file of Aug 9, 2026

Jean Vierra, MD

Obstetrics & Gynecology Physician · Novato, CA

Jean Vierra, MD is an obstetrics & gynecology physician with a practice address in Novato, California, and NPI 1023192002, issued on Oct 25, 2006. Check the license (California G84982, 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
1023192002
Name
Jean Vierra
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G84982 CA
Self-reported in NPPES; status is on the state search
Practice location
97 San Marin Dr, Novato, CA 94945
Phone
(415) 899-7400
Enumerated
Oct 25, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00G849820 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 97 San Marin Dr

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

  1. Kenneth Allen, RRT, RCPRegistered Respiratory Therapist1609346691
  2. Ziba Ansari-Jaberi, PHARM.D.Pharmacist1013001916
  3. Joanne Arauzo, PHARM DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1265756704
  4. Sanamjit Bains, RRTRegistered Respiratory Therapist1518438605
  5. Ellen Biera, RCT, RRT, RCPRegistered Respiratory Therapist1639950991
  6. Jane Burr, RNDiabetes Educator Registered Nurse1932246220

Verify Jean Vierra in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G84982
    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

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92% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

13 Medicare Part D claims for 13 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Jean Vierra13
  2. Specialty average165

Most prescribed

  1. Adacel Tdap13 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.

Jean Vierra among 5,088 obstetrics & gynecology physician records in California

Jean Vierra, MD 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 fileNo · 53% of these records are
  • 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. Vicki Darrow, MDNovato, CA 949451841374915
  2. Michael Maioriello, M.D.Novato, CA 949471649283680
  3. Melissa Rankin, MDMill Valley, CA 949411467556068
  4. Sally Boero, M.D.Larkspur, CA 949391285731703
  5. Julie Clark, MDPetaluma, CA 949541346216389
  6. Kellie Corcoran, MDPetaluma, CA 949541760817258
  7. Laurie Dibble, MDPetaluma, CA 949541487738555
  8. Anthony Kosinski, M.D.Petaluma, CA 949541588656631

Common questions

What is Jean Vierra, MD's NPI number?

Jean Vierra, MD's National Provider Identifier (NPI) is 1023192002, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jean Vierra, MD located?

The NPPES record lists a practice address at 97 San Marin Dr, Novato, CA, 94945. Phone: (415) 899-7400. Providers update this record themselves, so call before visiting.

How can I verify Jean Vierra, MD's license?

NPPES lists California license number G84982, 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.

How much does Jean Vierra, MD prescribe under Medicare Part D?

In 2024, Jean Vierra, MD had 13 Medicare Part D claims for 13 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.