Matthew Bayer, MD
Emergency Medicine Physician · Madera, CA
Matthew Bayer, MD is an emergency medicine physician with a practice address in Madera, California, and NPI 1245370147, issued on Feb 8, 2007. Check the license (California G76944, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Matthew Bayer
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G76944 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9300 Valley Childrens PL, Madera, CA 93638
- Phone
- (330) 493-4443
- Enumerated
- Feb 8, 2007
- Record last updated
- Jul 28, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 9300 Valley Childrens PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hengameh Akhtar, M.D.Pediatrics Physician1154385714
- Edsel Arce-Hernandez, MDPediatric Rheumatology Physician1861458002
- Margaret Arreguin-Zarate, LCSWClinical Social Worker1679783781
- David Babers, SOCIAL WORKER, MSWSocial Worker1487865887
- Swati Banerjee, M.D.Pediatric Endocrinology Physician1134197858
- Vinod Bansal, M.D.Neonatal-Perinatal Medicine Physician1225143977
Verify Matthew Bayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G76944Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Matthew Bayer among 7,751 emergency medicine physician records in California
Matthew Bayer, MD 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 not. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2022 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,751 in California → Every provider in Madera → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Maya Hattangady, MDMadera, CA 936381699815597
- Gregory Watts, MDMadera, CA 936381881734788
- Elaine Chiu, M.D.Madera, CA 936371972513794
- Christina Coronado, DOMadera, CA 936371760988653
- Richard French, M.D.Madera, CA 936371265641781
- Jennifer Liu, D.O.Madera, CA 936371750674115
- Nolito Osea, M.D.Madera, CA 936371770698136
- Lauren Schneider, MDMadera, CA 936371043741879
Common questions
What is Matthew Bayer, MD's NPI number?
Matthew Bayer, MD's National Provider Identifier (NPI) is 1245370147, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Bayer, MD located?
The NPPES record lists a practice address at 9300 Valley Childrens PL, Madera, CA, 93638. Phone: (330) 493-4443. Providers update this record themselves, so call before visiting.
How can I verify Matthew Bayer, MD's license?
NPPES lists California license number G76944, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.