Registry data as of Aug 27, 2026

Matthew Koehler, DO

Student in an Organized Health Care Education/Training Program · San Rafael, CA

Matthew Koehler, DO is a student in an organized health care education/training program with a practice address in San Rafael, California, and NPI 1801090519, issued on Jun 14, 2007. Check the license (California 10685, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1801090519
Name
Matthew Koehler
Credential
DO
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
License number
10685 CA
Self-reported in NPPES; status is on the state search
Practice location
5000 Civic Center Dr, San Rafael, CA 94903
Phone
(415) 499-0100
Enumerated
Jun 14, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5000 Civic Center Dr

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

  1. Kristen Chen, MDStudent in an Organized Health Care Education/Training Program1952930604
  2. Ravinder Gogia, MDDermatology Physician1083872618
  3. Renee Howard, M.D.Dermatology Physician1952336232
  4. Amy Kobalter, M.D.Dermatology Physician1902830623
  5. Lucinda Kohn, M.D.Pediatric Dermatology Physician1346669561
  6. Elaine Lin, M.D.Dermatology Physician1881049872

Verify Matthew Koehler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 10685
    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
Find 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

2.1 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024

1,024 Medicare Part D claims for 478 beneficiaries, against an average of 488 among the 106,422 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Matthew Koehler1,024
  2. Specialty average488

Most prescribed

  1. Triamcinolone Acetonide168 claims
  2. Ketoconazole105 claims
  3. Fluocinonide63 claims
  4. Metronidazole61 claims
  5. Fluorouracil53 claims
  6. Clobetasol Propionate52 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 practice group's Medicare quality score for 2023: 75.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score
  2. Costout of 100 · 30%57.3
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $696.53

31 payments, mostly food and beverage; the largest payer was Lilly USA, LLC. The 42,769 providers of this specialty with any payment received $1,210.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Koehler$696.53
  2. Specialty average$1,210.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Regents Univ OF California UcsfSan Francisco, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

211 student in an organized health care education/training program records list a San Rafael practice address

They are 211 of the 3,159 NPPES records with a San Rafael practice address, and 49,599 student in an organized health care education/training program records in California.

Other student in an organized health care education/training program records in California

  1. Sanad A'BasiFresno, CA1720915770
  2. Alexander Aabedi, MDSan Francisco, CA1245971480
  3. Andre AabediPomona, CA1891582102
  4. Natalie Aabodi, DMDPomona, CA1851085187
  5. Mati Aamed, PSY.D.Pacoima, CA1689285470
  6. Kjeld Aamodt, DDS, MSSan Francisco, CA1912250176
  7. Megan Aaronson, MD, MSCRLos Angeles, CA1386272102
  8. Manas AavulaPomona, CA1972496644
  9. Louisa AbadaOakland, CA1023502259
  10. Sharon AbadaSan Francisco, CA1003492844

Common questions

What is Matthew Koehler, DO's NPI number?

Matthew Koehler, DO's National Provider Identifier (NPI) is 1801090519, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Koehler, DO located?

The NPPES record lists a practice address at 5000 Civic Center Dr, San Rafael, CA, 94903. Phone: (415) 499-0100. Providers update this record themselves, so call before visiting.

How can I verify Matthew Koehler, DO's license?

NPPES lists California license number 10685, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Matthew Koehler, DO prescribe under Medicare Part D?

In 2024, Matthew Koehler, DO had 1,024 Medicare Part D claims for 478 beneficiaries; the average among student in an organized health care education/training program prescribers was 488. Part D covers Medicare prescriptions only.

What is Matthew Koehler, DO's Medicare quality score?

The 2023 MIPS final score is 75.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.