NPPES file of Aug 9, 2026

Gajan Tristan Mathivanan, PHARM.D

Pharmacist · Angels Camp, CA

Gajan Tristan Mathivanan, PHARM.D is a pharmacist with a practice address in Angels Camp, California, and NPI 1609485044, issued on Jul 30, 2020. Check the license (California 82486, as entered in NPPES) with the California board that licenses this profession; 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
1609485044
Name
Gajan Tristan Mathivanan
Credential
PHARM.D
Primary taxonomy
Pharmacist 183500000X
License number
82486 CA
Self-reported in NPPES; status is on the state search
Practice location
230 S Main St, Angels Camp, CA 95222
Phone
(209) 736-4623
Enumerated
Jul 30, 2020
Record last updated
Jul 30, 2020 (not updated in 6 years: call before relying on the address or phone)
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.
Download card Updates feed

Also registered at 230 S Main St

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

  1. Warda Nawaz, PHARMD, RPHPharmacist1104454388
  2. Mechele Roessler, VACCINATING TECHPharmacy Technician1487345310
  3. Nancy ThaiPharmacist1932764370
  4. Natalie TibioPharmacist1922391838
  5. Dean Westphalen, R.PH.Pharmacist1144532482

Verify Gajan Tristan Mathivanan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 82486
    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
Find 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Most of these Medicare Part D claims are vaccines, 94% of the cost of the top drugs

128 Medicare Part D claims for 77 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Gajan Mathivanan128
  2. Specialty average119

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Shingrix33 claims
  2. Boostrix Tdap21 claims
  3. Arexvy18 claims
  4. Twinrix16 claims
  5. Abrysvo14 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.

Gajan Tristan Mathivanan among 32,533 pharmacist records in California

Gajan Tristan Mathivanan, PHARM.D is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 73% of them.

  • NPI issued2020 · 73% of these records are older, 21% newer
  • In a Medicare fileYes · 15% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2020 · 76% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 pharmacist records list a practice address in Angels Camp

They are 7 of the 52 NPPES records with a practice address in Angels Camp, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Warda Nawaz, PHARMD, RPHAngels Camp, CA 952221104454388
  2. Tarnjit Rai, PHARMDAngels Camp, CA 952221114857240
  3. Nancy ThaiAngels Camp, CA 952221932764370
  4. Natalie TibioAngels Camp, CA 952221922391838
  5. Dean Westphalen, R.PH.Angels Camp, CA 952221144532482
  6. Michael ZarconeAngels Camp, CA 952221952822264
  7. James Carlson, PHARMACISTArnold, CA 952231750827283
  8. Ronald Lawrence, PHARMDArnold, CA 952231982153086

Common questions

What is Gajan Tristan Mathivanan, PHARM.D's NPI number?

Gajan Tristan Mathivanan, PHARM.D's National Provider Identifier (NPI) is 1609485044, issued on Jul 30, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Gajan Tristan Mathivanan, PHARM.D located?

The NPPES record lists a practice address at 230 S Main St, Angels Camp, CA, 95222. Phone: (209) 736-4623. Providers update this record themselves, so call before visiting.

How can I verify Gajan Tristan Mathivanan, PHARM.D's license?

NPPES lists California license number 82486, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Gajan Tristan Mathivanan, PHARM.D prescribe under Medicare Part D?

In 2024, Gajan Tristan Mathivanan, PHARM.D had 128 Medicare Part D claims for 77 beneficiaries; the average among pharmacist prescribers was 119. 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.