Mark Abraham Marshall
Emergency Medicine Physician · Rosevill, CA
Mark Abraham Marshall is an emergency medicine physician with a practice address in Rosevill, California, and NPI 1457595001, issued on Apr 27, 2009. Check the license (California 20A 12191, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Abraham Marshall
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A 12191 CA
34. 010307 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3300 Douglas Blvd., Suite 405, Rosevill, CA 95661
- Phone
- (330) 493-4443
- Enumerated
- Apr 27, 2009
- Record last updated
- Jul 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120518000532); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Mark Abraham Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A 12191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% more Medicare Part D claims than the average emergency medicine physician in 2024
293 Medicare Part D claims for 170 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 40 claims were for opioids.
Most prescribed
- Cephalexin33 claims
- Ondansetron Odt24 claims
- Albuterol Sulfate Hfa18 claims
- Hydrocodone-Acetaminophen18 claims
- Methylprednisolone15 claims
- Prednisone14 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): 94.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cep America - CaliforniaTruckee, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Abraham Marshall among 7,751 emergency medicine physician records in California
Mark Abraham Marshall is one of 7,751 emergency 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 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2009 · median 2011 among the 4,560 with a school on file
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Angela Bell, M.D.Roseville, CA 956611578560389
- Mark Biittner, M.D.Roseville, CA 956611932120235
- Dana Dunlavey, M.DRoseville, CA 956611265454037
- Darilyn Falck, M.D.Roseville, CA 956611275644643
- Keith Fenderson, M.DRoseville, CA 956611902824873
- Dawn Hitchcock, M.DRoseville, CA 956611720006604
- Jon Johnston, D.ORoseville, CA 956611629090220
- Christopher Markus, D.ORoseville, CA 956611891717427
Common questions
What is Mark Abraham Marshall's NPI number?
Mark Abraham Marshall's National Provider Identifier (NPI) is 1457595001, issued on Apr 27, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mark Abraham Marshall located?
The NPPES record lists a practice address at 3300 Douglas Blvd., Suite 405, Rosevill, CA, 95661. Phone: (330) 493-4443. Providers update this record themselves, so call before visiting.
How can I verify Mark Abraham Marshall's license?
NPPES lists California license number 20A 12191, 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 Mark Abraham Marshall prescribe under Medicare Part D?
In 2024, Mark Abraham Marshall had 293 Medicare Part D claims for 170 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Mark Abraham Marshall's MIPS final score?
The 2023 MIPS final score is 94.6 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.