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Matthew Bayer, MD
NPI 1245370147 · Emergency Medicine Physician · Madera, CA
Matthew Bayer, MD is a Emergency Medicine Physician provider in Madera, CA (NPI 1245370147).
Provider details
- NPI number
- 1245370147
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G76944 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
9300 Valley Childrens Pl
Madera, CA 93638-8761
Phone: (330) 493-4443
Street-level locationGet directions
Mailing address
9300 Valley Childrens Pl # Sc05
Madera, CA 93636-8761
Registry dates
- Enumerated
- 2007-02-08
- Last updated
- 2022-07-28
- Certified
- 2022-07-28
Frequently asked questions
- What is Matthew Bayer's NPI number?
- Matthew Bayer's National Provider Identifier (NPI) is 1245370147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Bayer's specialty?
- Matthew Bayer is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Bayer located?
- Matthew Bayer's practice location on file with NPPES is 9300 Valley Childrens Pl, Madera, CA 93638-8761.
- What is Matthew Bayer's phone number?
- The practice phone number listed in the NPPES registry for Matthew Bayer is (330) 493-4443.
- Is Matthew Bayer's NPI active?
- Yes — Matthew Bayer's NPI (1245370147) is active in the NPPES registry as of the last update on 2022-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.