NPPES file of Aug 9, 2026

Tristan Alessandro Jardini, M.D.

Obstetrics & Gynecology Physician · Vallejo, CA

Tristan Alessandro Jardini, M.D. is an obstetrics & gynecology physician with a practice address in Vallejo, California, and NPI 1205149077, issued on Jul 21, 2010. Check the license (California A 113171, 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
1205149077
Name
Tristan Alessandro Jardini
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A 113171 CA
Self-reported in NPPES; status is on the state search
Practice location
975 Sereno Dr, Vallejo, CA 94589
Phone
(707) 651-2926
Enumerated
Jul 21, 2010
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120830000642); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 975 Sereno Dr

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

  1. Joel Aandahl, NPAdult Health Nurse Practitioner1891423653
  2. Noman Absar, MDCritical Care Medicine (Internal Medicine) Physician1205908951
  3. Anthony Acquaviva, MDUrology Physician1457439283
  4. Jhonnard James Acuna, CRNACertified Registered Nurse Anesthetist1205997327
  5. Omid AfshariPharmacist1184165391
  6. Eesha AftabStudent in an Organized Health Care Education/Training Program1770421687

Verify Tristan Alessandro Jardini in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A 113171
    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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41% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

233 Medicare Part D claims for 106 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Tristan Jardini233
  2. Specialty average165

Most prescribed

  1. Estradiol36 claims
  2. Estring22 claims
  3. Norethindrone Acetate13 claims
  4. Trospium Chloride11 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncVallejo, CA

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

Tristan Alessandro Jardini among 5,088 obstetrics & gynecology physician records in California

Tristan Alessandro Jardini, 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 2010, is newer than 70% of them.

  • NPI issued2010 · 70% of these records are older, 28% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2007 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 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. Anahita Bunce, MDVallejo, CA 945891578601571
  2. Nicole Buscaglia, MDVallejo, CA 945891205914041
  3. Peter Coffin, MDVallejo, CA 945891750469599
  4. Thomas Downs, MDVallejo, CA 945891932287778
  5. Ruth Goldenberg, MDVallejo, CA 945891932287752
  6. Nancy Goler, MDVallejo, CA 945891992881429
  7. Neha Kamdar, M.D.Vallejo, CA 945891982669008
  8. Diane Kelley, MDVallejo, CA 945891295813012

Common questions

What is Tristan Alessandro Jardini, M.D.'s NPI number?

Tristan Alessandro Jardini, M.D.'s National Provider Identifier (NPI) is 1205149077, issued on Jul 21, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Tristan Alessandro Jardini, M.D. located?

The NPPES record lists a practice address at 975 Sereno Dr, Vallejo, CA, 94589. Phone: (707) 651-2926. Providers update this record themselves, so call before visiting.

How can I verify Tristan Alessandro Jardini, M.D.'s license?

NPPES lists California license number A 113171, 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 Tristan Alessandro Jardini, M.D. prescribe under Medicare Part D?

In 2024, Tristan Alessandro Jardini, M.D. had 233 Medicare Part D claims for 106 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.