NPPES file of Aug 9, 2026

Matthew Donnelly, M.D.

Emergency Medicine Physician · Marysville, CA

Matthew Donnelly, M.D. is an emergency medicine physician with a practice address in Marysville, California, and NPI 1679773311, issued on Jul 20, 2007. Check the license (California A99255, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679773311
Name
Matthew Donnelly
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A99255 CA
Self-reported in NPPES; status is on the state search
Practice location
726 Fouth Street, Marysville, CA 95901
Phone
(530) 749-4300
Enumerated
Jul 20, 2007
Record last updated
Jul 20, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070914000634); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2002
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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Also registered at 726 Fouth Street

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

  1. Dhraminder Mohan, MDAnesthesiology Physician1568452464

Verify Matthew Donnelly in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99255
    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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1% fewer Medicare Part D claims than the average emergency medicine physician in 2024

223 Medicare Part D claims for 147 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 17 claims were for opioids.

  1. Matthew Donnelly223
  2. Specialty average226

Most prescribed

  1. Cephalexin21 claims
  2. Sulfamethoxazole-Trimethoprim17 claims
  3. Prednisone16 claims
  4. Doxycycline Hyclate13 claims
  5. Nitrofurantoin Mono-Macro11 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.

  1. Qualityout of 100 · 30% of the final score76.7
  2. Costout of 100 · 30%97.1
  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).

Bills Medicare through one group practice

  1. Cep America - CaliforniaSacramento, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew Donnelly among 7,751 emergency medicine physician records in California

Matthew Donnelly, M.D. 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2002 · median 2011 among the 4,560 with a school on file
  • Record last updated2007 · 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).

12 emergency medicine physician records list a practice address in Marysville

They are 12 of the 708 NPPES records with a practice address in Marysville, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Davindeep Brar, MDMarysville, CA 959011962030023
  2. Bradley Grausz, D.OMarysville, CA 959011033288204
  3. Mark Johnson, MDMarysville, CA 959011669578357
  4. Karen Parker, M.DMarysville, CA 959011548200546
  5. Kashmir Singh, M.DMarysville, CA 959011013955202
  6. Donald Snyder, M.DMarysville, CA 959011770521965
  7. Evan Wu, M.D.Marysville, CA 959011417311010
  8. Alec Good, D.O.Beale Afb, CA 959031285169078

Common questions

What is Matthew Donnelly, M.D.'s NPI number?

Matthew Donnelly, M.D.'s National Provider Identifier (NPI) is 1679773311, issued on Jul 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Donnelly, M.D. located?

The NPPES record lists a practice address at 726 Fouth Street, Marysville, CA, 95901. Phone: (530) 749-4300. Providers update this record themselves, so call before visiting.

How can I verify Matthew Donnelly, M.D.'s license?

NPPES lists California license number A99255, 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 Matthew Donnelly, M.D. prescribe under Medicare Part D?

In 2024, Matthew Donnelly, M.D. had 223 Medicare Part D claims for 147 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Matthew Donnelly, M.D.'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.