NPPES file of Aug 9, 2026

Michael J. Boyers, MD

Family Medicine Physician · Santa Rosa, CA

Michael J. Boyers, MD is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1235213307, issued on Oct 25, 2006. Check the license (California A80391, 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
1235213307
Name
Michael J. Boyers
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A80391 CA
Self-reported in NPPES; status is on the state search
Practice location
401 Bicentennial Way, Santa Rosa, CA 95403
Phone
(707) 571-4000
Enumerated
Oct 25, 2006
Record last updated
Oct 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A803910 CA
Medicare enrollment
Enrolled (PECOS I20101129000303); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1997
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 401 Bicentennial Way

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

  1. Anna Ackerman, RNRegistered Nurse1376409409
  2. Patricia AdamsPhysical Therapist1124971825
  3. Hugo Aguilar, PHARMDPharmacist1992389134
  4. Heather Aiello, OTR/LOccupational Therapist1851155022
  5. Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
  6. Miguel Alcala, LCSWClinical Social Worker1629857891

Verify Michael J. Boyers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A80391
    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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86% more Medicare Part D claims than the average family medicine physician in 2024

6,595 Medicare Part D claims for 669 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 274 claims were for opioids.

  1. Michael Boyers6,595
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium476 claims
  2. Levothyroxine Sodium345 claims
  3. Amlodipine Besylate248 claims
  4. Losartan Potassium221 claims
  5. Lisinopril201 claims
  6. Simvastatin171 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.

Bills Medicare through one group practice

  1. Providence Medical FoundationWindsor, CA

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

Michael J. Boyers among 17,133 family medicine physician records in California

Michael J. Boyers, MD 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1997 · 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).

264 family medicine physician records list a practice address in Santa Rosa

They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Robert Gabbay, D.O.Santa Rosa, CA 954031821028283
  2. Karen Gelphman, MDSanta Rosa, CA 954031972565703
  3. Jennifer Lee, MDSanta Rosa, CA 954031447288204
  4. Azra Mael, M.D.Santa Rosa, CA 954031477596518
  5. Patricia Mazzetti Hiserote, D.O.Santa Rosa, CA 954031821002593
  6. Neil Nathan, MDSanta Rosa, CA 954031174510788
  7. Amelia Randolph, MDSanta Rosa, CA 954031093739708
  8. Edward Rose, M.D.Santa Rosa, CA 954031750354106

Common questions

What is Michael J. Boyers, MD's NPI number?

Michael J. Boyers, MD's National Provider Identifier (NPI) is 1235213307, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Boyers, MD located?

The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 571-4000. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Boyers, MD's license?

NPPES lists California license number A80391, 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 J. Boyers, MD prescribe under Medicare Part D?

In 2024, Michael J. Boyers, MD had 6,595 Medicare Part D claims for 669 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.

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.