NPPES file of Aug 9, 2026

Michael J. Star, M.D.

Orthopaedic Surgery Physician · Santa Rosa, CA

Michael J. Star, M.D. is an orthopaedic surgery physician with a practice address in Santa Rosa, California, and NPI 1194768747, issued on Jun 13, 2006. Check the license (California E85482, 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
1194768747
Name
Michael J. Star
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
E85482 CA
Self-reported in NPPES; status is on the state search
Practice location
1405 Montgomery Dr, Santa Rosa, CA 95405
Phone
(707) 546-1922
Enumerated
Jun 13, 2006
Record last updated
Nov 25, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(707) 546-1987
Medicaid ID
00G611670 CA
Medicare enrollment
Enrolled (PECOS I20161130000623); 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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8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →

Also registered at 1405 Montgomery Dr

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

  1. Christian Athanassious, M.D.Orthopaedic Surgery Physician1043471279
  2. Carolyn Bartlett, O.T., C.H.T.Hand Occupational Therapist1023176450
  3. Thomas Degenhardt, M.D.Orthopaedic Surgery Physician1073556635
  4. Rodney Dekleuver, PHYSICIAN ASSISTANTPhysician Assistant1487118105
  5. Patricia Hall, RPTPhysical Therapist1588876049
  6. Jennifer Henshaw-Lefever, PA, O.T.Physician Assistant1891997227

Verify Michael J. Star in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license E85482    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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29% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

246 Medicare Part D claims for 120 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Michael Star246
  2. Specialty average346

Most prescribed

  1. Meloxicam134 claims
  2. Naproxen37 claims
  3. Celecoxib19 claims
  4. Diclofenac Sodium18 claims
  5. Gabapentin14 claims
  6. Methylprednisolone12 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.

One hospital affiliation

  1. Cleveland ClinicCleveland, OH · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Michael J. Star among 2,276 orthopaedic surgery physician records in California

Michael J. Star, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 46% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1984 · median 2003 among the 1,347 with a school on file
  • Record last updated2008 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California.

All 2,276 in California → Every provider in Santa Rosa → Orthopaedic Surgery Physician nationwide →

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Christian Athanassious, M.D.Santa Rosa, CA 954051043471279
  2. James Bauer, MDSanta Rosa, CA 954051154736882
  3. Frederick Bennett, M.D.Santa Rosa, CA 954051205879830
  4. Thomas Degenhardt, M.D.Santa Rosa, CA 954051073556635
  5. Roger Klein, M.D.Santa Rosa, CA 954051083655252
  6. Michael McDermott, M.D.Santa Rosa, CA 954051750365102
  7. Neema Pourtaheri, MDSanta Rosa, CA 954051720272313
  8. Mark Schakel, M.D.Santa Rosa, CA 954051083657654

Common questions

What is Michael J. Star, M.D.'s NPI number?

Michael J. Star, M.D.'s National Provider Identifier (NPI) is 1194768747, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Star, M.D. located?

The NPPES record lists a practice address at 1405 Montgomery Dr, Santa Rosa, CA, 95405. Phone: (707) 546-1922. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Star, M.D.'s license?

NPPES lists California license number E85482, 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. Star, M.D. prescribe under Medicare Part D?

In 2024, Michael J. Star, M.D. had 246 Medicare Part D claims for 120 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.