NPPES file of Aug 9, 2026

Elizabeth M. Claydon, M.D.

Family Medicine Physician · Grass Valley, CA

Elizabeth M. Claydon, M.D. is a family medicine physician with a practice address in Grass Valley, California, and NPI 1992140131, issued on May 1, 2013. Check the license (California A143525, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992140131
Name
Elizabeth M. Claydon
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A143525 CA
Self-reported in NPPES; status is on the state search
Practice location
150 Catherine LN Ste B, Grass Valley, CA 95945
Phone
(530) 271-2100
Enumerated
May 1, 2013
Record last updated
Jan 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(833) 992-0805
Medicare enrollment
Enrolled (PECOS I20170120002199); 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 150 Catherine LN Ste B

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

  1. Marc Claydon, DPMFoot & Ankle Surgery Podiatrist1447601802
  2. Malia Pinal, PA-CPhysician Assistant1508560368

Verify Elizabeth M. Claydon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A143525
    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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3.7 times the Medicare Part D claims of the average family medicine physician in 2024

13,167 Medicare Part D claims for 1,077 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 416 claims were for opioids.

  1. Elizabeth Claydon13,167
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium694 claims
  2. Levothyroxine Sodium681 claims
  3. Amlodipine Besylate547 claims
  4. Losartan Potassium546 claims
  5. Lisinopril466 claims
  6. Omeprazole432 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.

The MIPS final score for 2023 (Medicare payment program): 78.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.6
  2. Costout of 100 · 30%43.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $36.08

2 payments; by number, the most common kind was education; the largest payer was Dexcom, 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. Elizabeth Claydon$36.08
  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. Claydon Medical Group IncGrass Valley, CA

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

Elizabeth M. Claydon among 17,133 family medicine physician records in California

Elizabeth M. Claydon, 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 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 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).

36 family medicine physician records list a practice address in Grass Valley

They are 36 of the 1,540 NPPES records with a practice address in Grass Valley, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Garrett Eckerling, M.D.Grass Valley, CA 959451215937388
  2. Jill Fitzpatrick, MDGrass Valley, CA 959451689640658
  3. Linda Foshagen, DOGrass Valley, CA 959451568420750
  4. Constance Gaulter, M.D.Grass Valley, CA 959451508881459
  5. John Jackson, MDGrass Valley, CA 959451487689840
  6. Byron Lake, M.D.Grass Valley, CA 959451891832242
  7. Frank Lang, M.D.Grass Valley, CA 959451417942939
  8. Veronica Minier, MDGrass Valley, CA 959451720050909

Common questions

What is Elizabeth M. Claydon, M.D.'s NPI number?

Elizabeth M. Claydon, M.D.'s National Provider Identifier (NPI) is 1992140131, issued on May 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth M. Claydon, M.D. located?

The NPPES record lists a practice address at 150 Catherine LN Ste B, Grass Valley, CA, 95945. Phone: (530) 271-2100. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth M. Claydon, M.D.'s license?

NPPES lists California license number A143525, 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 Elizabeth M. Claydon, M.D. prescribe under Medicare Part D?

In 2024, Elizabeth M. Claydon, M.D. had 13,167 Medicare Part D claims for 1,077 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Elizabeth M. Claydon, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.