NPPES file of Aug 9, 2026

Michael Richard Nay, MD

General Practice Physician · Clovis, CA

Michael Richard Nay, MD is a general practice physician with a practice address in Clovis, California, and NPI 1639306863, issued on Jun 15, 2009. Check the license (California C166591, 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
1639306863
Name
Michael Richard Nay
Credential
MD
Primary taxonomy
General Practice Physician 208D00000X
License numbers
C166591 CA
44040 AZ
Self-reported in NPPES; status is on the state search
Practice location
255 W Bullard Ave Ste 109, Clovis, CA 93612
Phone
(559) 325-5715
Enumerated
Jun 15, 2009
Record last updated
Sep 8, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210921003809); may accept Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 2009
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 255 W Bullard Ave Ste 109

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

  1. Sheilah Adams, FNPFamily Nurse Practitioner1871983833
  2. Gurmit Deol, N.P.Family Nurse Practitioner1376854943
  3. Tony Reid, P.A.-CPhysician Assistant1518004308
  4. James Tinio, MDFamily Medicine Physician1831365014

Verify Michael Richard Nay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C166591
    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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58% fewer Medicare Part D claims than the average general practice physician in 2024

1,275 Medicare Part D claims for 150 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. 127 claims were for opioids.

  1. Michael Nay1,275
  2. Specialty average3,030

Most prescribed

  1. Levothyroxine Sodium78 claims
  2. Hydrocodone-Acetaminophen68 claims
  3. Gabapentin47 claims
  4. Albuterol Sulfate Hfa42 claims
  5. Metformin Hcl39 claims
  6. Lisinopril38 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: $234.31

6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Nay$234.31
  2. Specialty average$1,273.40

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. Feather River Tribal Health IncOroville, CA

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

Michael Richard Nay among 1,956 general practice physician records in California

Michael Richard Nay, MD is one of 1,956 general practice physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.

  • NPI issued2009 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2009 · median 1994 among the 520 with a school on file
  • Record last updated2020 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in California

There are 1,956 general practice physician records in California.

The 8 general practice physician records with the nearest ZIP codes

  1. John Kircher, MDClovis, CA 936111225116114
  2. Nicholas Nomicos, M.D.Chowchilla, CA 936101235164898
  3. Carlos Inocencio, MDDinuba, CA 936181558319293
  4. Gujarathi Narayan, M.D.Dinuba, CA 936181164642773
  5. Anand Narayan, M.D.Dinuba, CA 936181013221845
  6. Sohail Mamdani, D.O.Los Banos, CA 936351104113976
  7. Alireza Shams, M.D.Los Banos, CA 936351215323183
  8. Peraiah Sudanagunta, MDLos Banas, CA 936351336211648

Common questions

What is Michael Richard Nay, MD's NPI number?

Michael Richard Nay, MD's National Provider Identifier (NPI) is 1639306863, issued on Jun 15, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Michael Richard Nay, MD located?

The NPPES record lists a practice address at 255 W Bullard Ave Ste 109, Clovis, CA, 93612. Phone: (559) 325-5715. Providers update this record themselves, so call before visiting.

How can I verify Michael Richard Nay, MD's license?

NPPES lists California license number C166591, 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 Michael Richard Nay, MD prescribe under Medicare Part D?

In 2024, Michael Richard Nay, MD had 1,275 Medicare Part D claims for 150 beneficiaries; the average among general practice physician prescribers was 3,030. 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.