NPPES file of Aug 9, 2026

John Fredrick Clark, M.D.

Family Medicine Physician · Salinas, CA

John Fredrick Clark, M.D. is a family medicine physician with a practice address in Salinas, California, and NPI 1174505523, issued on Nov 18, 2005. Check the license (California G079573, 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
1174505523
Name
John Fredrick Clark
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G079573 CA
Self-reported in NPPES; status is on the state search
Practice location
355 Abbott St, Salinas, CA 93901
Phone
(831) 751-7070
Enumerated
Nov 18, 2005
Record last updated
Mar 1, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(831) 751-7050
Medicare enrollment
Enrolled (PECOS I20040226000695); accepts Medicare assignment
Medical or professional school
University Of California, Davis School Of Medicine, 1992
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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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 355 Abbott St

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

  1. Russell Brunet, D.O.Family Medicine Physician1790997690
  2. Patrick Chen, M.D.Internal Medicine Physician1598749616
  3. Jaspreet Dhillon, M.DInternal Medicine Physician1942207170
  4. Phillip King, MDInternal Medicine Physician1710961552
  5. Vittorio Lagana, DPMFoot & Ankle Surgery Podiatrist1366460453
  6. Warren Nishimoto, DOFamily Medicine Physician1508840349

Verify John Fredrick Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G079573    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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2.6 times the Medicare Part D claims of the average family medicine physician in 2024

9,165 Medicare Part D claims for 741 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 265 claims were for opioids.

  1. John Clark9,165
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium655 claims
  2. Amlodipine Besylate405 claims
  3. Metformin Hcl364 claims
  4. Levothyroxine Sodium315 claims
  5. Simvastatin265 claims
  6. Omeprazole247 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: $517.35

28 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Clark$517.35
  2. Specialty average$902.55

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. Svmhs ClinicsSalinas, CA

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

John Fredrick Clark among 17,133 family medicine physician records in California

John Fredrick Clark, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1992 · median 2005 among the 10,652 with a school on file
  • Record last updated2011 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

130 family medicine physician records list a practice address in Salinas

They are 130 of the 4,530 NPPES records with a practice address in Salinas, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Salinas → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Darrin Bright, D.O.Salinas, CA 939011992702146
  2. Umberto D'Ambrosio, M.D.Salinas, CA 939011942203740
  3. William Khieu, MDSalinas, CA 939011942203526
  4. Cecilia Loleng, MDSalinas, CA 939011053314542
  5. Michael Luder, D.O.Salinas, CA 939011730182510
  6. Karen Ludlow, MDSalinas, CA 939011063494920
  7. Warren Nishimoto, DOSalinas, CA 939011508840349
  8. Joanna Oppenheim, MDSalinas, CA 939011356332951

Common questions

What is John Fredrick Clark, M.D.'s NPI number?

John Fredrick Clark, M.D.'s National Provider Identifier (NPI) is 1174505523, issued on Nov 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Fredrick Clark, M.D. located?

The NPPES record lists a practice address at 355 Abbott St, Salinas, CA, 93901. Phone: (831) 751-7070. Providers update this record themselves, so call before visiting.

How can I verify John Fredrick Clark, M.D.'s license?

NPPES lists California license number G079573, 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 John Fredrick Clark, M.D. prescribe under Medicare Part D?

In 2024, John Fredrick Clark, M.D. had 9,165 Medicare Part D claims for 741 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.