Registry data as of Aug 27, 2026

Mark Jacobs, PA

Physician Assistant · Modesto, CA

Mark Jacobs, PA is a physician assistant with a practice address in Modesto, California, and NPI 1346359866, issued on Aug 29, 2006. Check the license 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 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1346359866
Name
Mark Jacobs
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA.1502 AL
15-01583 KS
Self-reported in NPPES; status is on the state search
Practice location
1541 Florida Ave Ste 305, Modesto, CA 95350
Phone
(209) 575-5833
Enumerated
Aug 29, 2006
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 1541 Florida Ave Ste 305

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

  1. Zachary Brewer, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1467741975
  2. John Degraft-Johnson, M.D.,Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1043472871
  3. James Roberts, M.D., R.V.T. FACSVascular Surgery Physician1356346936

Verify Mark Jacobs in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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 →

83% fewer Medicare Part D claims than the average physician assistant in 2024

142 Medicare Part D claims for 39 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Mark Jacobs142
  2. Specialty average830

Most prescribed

  1. Metoprolol Tartrate18 claims
  2. Clopidogrel16 claims
  3. Potassium Chloride14 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.

122 physician assistant records list a practice address in Modesto

They are 122 of the 9,262 NPPES records with a practice address in Modesto, and 14,451 physician assistant records in California.

Other physician assistant records in California

  1. Marcia -Galbraith, PAStockton, CA1407143274
  2. Danny Abad, PAOrange, CA1477158673
  3. Lea Dominique Abadies, PATustin, CA1124754254
  4. Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
  5. Ramina Abbasi, PA-CSignal Hill, CA1093448300
  6. Ariel Abbott, PA-CStockton, CA1780334342
  7. Barrie Abbott, PA-CAnza, CA1861602575
  8. Elizabeth Abbott, PA-CSan Diego, CA1437540762
  9. Terri Abbott, P.A.La Jolla, CA1811165566
  10. Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334

Common questions

What is Mark Jacobs, PA's NPI number?

Mark Jacobs, PA's National Provider Identifier (NPI) is 1346359866, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Jacobs, PA located?

The NPPES record lists a practice address at 1541 Florida Ave Ste 305, Modesto, CA, 95350. Phone: (209) 575-5833. Providers update this record themselves, so call before visiting.

How can I verify Mark Jacobs, PA's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Jacobs, PA prescribe under Medicare Part D?

In 2024, Mark Jacobs, PA had 142 Medicare Part D claims for 39 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

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.

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) 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 27, 2026.