NPPES file of Aug 9, 2026

Claire Hamilton Farmer, PA-C

Physician Assistant · Santa Monica, CA

Claire Hamilton Farmer, PA-C is a physician assistant with a practice address in Santa Monica, California, and NPI 1861125866, issued on Jul 6, 2022. Check the license (California PA64633, 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
1861125866
Name
Claire Hamilton Farmer
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA64633 CA
Self-reported in NPPES; status is on the state search
Practice location
901 Wilshire Blvd, Santa Monica, CA 90401
Phone
(310) 829-8903
Enumerated
Jul 6, 2022
Record last updated
Jun 13, 2024
Medicare enrollment
Enrolled (PECOS I20240627004024); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 2024
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.
Download card Updates feed

Also registered at 901 Wilshire Blvd

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

  1. Alis Bogumian, PHARMDPharmacist1184262628
  2. Thanh Ta, PHARMDPharmacist1619220001

Verify Claire Hamilton Farmer 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 PA64633
    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.

53% fewer Medicare Part D claims than the average physician assistant in 2024

393 Medicare Part D claims for 193 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Claire Farmer393
  2. Specialty average830

Most prescribed

  1. Albuterol Sulfate Hfa20 claims
  2. Atorvastatin Calcium19 claims
  3. Escitalopram Oxalate13 claims
  4. Gabapentin12 claims
  5. Levothyroxine Sodium11 claims
  6. Rosuvastatin Calcium11 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.

Industry payments in 2024: $378.47

11 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Claire Farmer$378.47
  2. Specialty average$841.65

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. Providence Saint Johns Medical FoundationSanta Monica, CA

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

Claire Hamilton Farmer among 14,451 physician assistant records in California

Claire Hamilton Farmer, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 20% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2024 · median 2018 among the 7,214 with a school on file
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

79 physician assistant records list a practice address in Santa Monica

They are 79 of the 5,151 NPPES records with a practice address in Santa Monica, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Blossom Dawn Aguirre, MS, PA-CSanta Monica, CA 904011235475005
  2. Jessica Brewer, P.A.Santa Monica, CA 904011447703731
  3. Eimy Connor, PA-CSanta Monica, CA 904011891346011
  4. Evan Feinstein, PA-CSanta Monica, CA 904011265754337
  5. Sara FennSanta Monica, CA 904011902344682
  6. Jaclyn Furoy, PA-CSanta Monica, CA 904011477903151
  7. Inna Gitelman, PASanta Monica, CA 904011023232659
  8. Sydney Gunn, PA-CSanta Monica, CA 904011083998157

Common questions

What is Claire Hamilton Farmer, PA-C's NPI number?

Claire Hamilton Farmer, PA-C's National Provider Identifier (NPI) is 1861125866, issued on Jul 6, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Claire Hamilton Farmer, PA-C located?

The NPPES record lists a practice address at 901 Wilshire Blvd, Santa Monica, CA, 90401. Phone: (310) 829-8903. Providers update this record themselves, so call before visiting.

How can I verify Claire Hamilton Farmer, PA-C's license?

NPPES lists California license number PA64633, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Claire Hamilton Farmer, PA-C prescribe under Medicare Part D?

In 2024, Claire Hamilton Farmer, PA-C had 393 Medicare Part D claims for 193 beneficiaries; the average among physician assistant prescribers was 830. 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.