Matthew James Maynard, DO
Emergency Medicine Physician · Sacramento, CA
Matthew James Maynard, DO is an emergency medicine physician with a practice address in Sacramento, California, and NPI 1366978199, issued on May 11, 2017. Check the license (California 20A16966, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Matthew James Maynard
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A16966 CA
OS18285 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2315 Stockton Blvd, Sacramento, CA 95817
- Phone
- (916) 734-8570
- Enumerated
- May 11, 2017
- Record last updated
- Dec 20, 2023
- Fax
- (916) 734-7950
- Medicare enrollment
- Enrolled (PECOS I20230831004691); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2315 Stockton Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew James Maynard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A16966Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average emergency medicine physician in 2024
46 Medicare Part D claims for 33 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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): 89.6 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 LLCMiramar Beach, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew James Maynard among 7,751 emergency medicine physician records in California
Matthew James Maynard, DO 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 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2017 · median 2011 among the 4,560 with a school on file
- Record last updated2023 · 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).
369 emergency medicine physician records list a practice address in Sacramento
They are 369 of the 33,083 NPPES records with a practice address in Sacramento, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Sacramento → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jodie Craig, M.D.Sacramento, CA 958171659354124
- Greg Hachigian, M.D.Sacramento, CA 958171558342022
- James Holmes, MD, MPHSacramento, CA 958171427033091
- James Kirk, MDSacramento, CA 958171598749848
- Nathan Kuppermann, M.D., M.P.H.Sacramento, CA 958171356322150
- James Lee, M.D.Sacramento, CA 958171730163510
- Kerry McMahon, MDSacramento, CA 958171235113549
- Robert Narverud, M.D.Sacramento, CA 958171457335754
Common questions
What is Matthew James Maynard, DO's NPI number?
Matthew James Maynard, DO's National Provider Identifier (NPI) is 1366978199, issued on May 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Matthew James Maynard, DO located?
The NPPES record lists a practice address at 2315 Stockton Blvd, Sacramento, CA, 95817. Phone: (916) 734-8570. Providers update this record themselves, so call before visiting.
How can I verify Matthew James Maynard, DO's license?
NPPES lists California license number 20A16966, 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 James Maynard, DO prescribe under Medicare Part D?
In 2024, Matthew James Maynard, DO had 46 Medicare Part D claims for 33 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Matthew James Maynard, DO's MIPS final score?
The 2023 MIPS final score is 89.6 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.