NPPES file of Aug 9, 2026

Mark Beyer, PA-C

Physician Assistant · San Francisco, CA

Mark Beyer, PA-C is a physician assistant with a practice address in San Francisco, California, and NPI 1275086464, issued on Jul 25, 2016. Check the license (California 53582, 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, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275086464
Name
Mark Beyer
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
53582 CA
PA53582 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Embarcadero Ctr Lbby Level, San Francisco, CA 94111
Phone
(888) 663-6331
Enumerated
Jul 25, 2016
Record last updated
Feb 19, 2026
Fax
(415) 252-7176
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 2 Embarcadero Ctr Lbby Level

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

  1. Susan AdamNurse Practitioner1033530811
  2. Julie Ahlrich, FNP-BCFamily Nurse Practitioner1780802629
  3. Ann Ala, NPFamily Nurse Practitioner1083948012
  4. Jennifer Alexander, FNPFamily Nurse Practitioner1205179249
  5. Sameerah Ali, FNP-BCNurse Practitioner1558531566
  6. Amanda Anderson, P.A.Physician Assistant1104292267

Verify Mark Beyer 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 53582
    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.

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75% fewer Medicare Part D claims than the average physician assistant in 2024

205 Medicare Part D claims for 127 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Mark Beyer205
  2. Specialty average830

Most prescribed

  1. Cephalexin22 claims
  2. Ondansetron Odt17 claims
  3. Hydrocodone-Acetaminophen15 claims
  4. Methylprednisolone14 claims
  5. Prednisone13 claims
  6. Amoxicillin-Clavulanate Potass11 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 MIPS final score for 2023 (Medicare payment program): 83.3 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 score79.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Mark Beyer among 14,451 physician assistant records in California

Mark Beyer, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 44% of them.

  • NPI issued2016 · 44% of these records are older, 53% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2026 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physician Assistant providers in California

There are 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Caroline Ahlquist, PA-CSan Francisco, CA 941111467524579
  2. Bodhi Anderson, PACSan Francisco, CA 941111730384942
  3. Joshua Borgstadt, PA-CSan Francisco, CA 941111417097155
  4. Karen Dress, PA-CSan Francisco, CA 941111013123157
  5. Cuyla Dudley, PA-C, ATCSan Francisco, CA 941111467426056
  6. Ashley Gregory, P.A.San Francisco, CA 941111255371746
  7. Amee Koch, PA-CSan Francisco, CA 941111013932094
  8. Danielle MartinoSan Francisco, CA 941111659549152

Common questions

What is Mark Beyer, PA-C's NPI number?

Mark Beyer, PA-C's National Provider Identifier (NPI) is 1275086464, issued on Jul 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Mark Beyer, PA-C located?

The NPPES record lists a practice address at 2 Embarcadero Ctr Lbby Level, San Francisco, CA, 94111. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.

How can I verify Mark Beyer, PA-C's license?

NPPES lists California license number 53582, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Beyer, PA-C prescribe under Medicare Part D?

In 2024, Mark Beyer, PA-C had 205 Medicare Part D claims for 127 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Mark Beyer, PA-C's MIPS final score?

The 2023 MIPS final score is 83.3 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), 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.