Matthew Gutierrez, M.D.
NPI 1639245608 · Family Medicine Physician · Martinez, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Gutierrez, M.D. is a Family Medicine Physician provider in Martinez, CA (NPI 1639245608).
Provider details
- NPI number
- 1639245608
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A83812 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2015-05-25
Frequently asked questions
- What is Matthew Gutierrez's NPI number?
- Matthew Gutierrez's National Provider Identifier (NPI) is 1639245608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Gutierrez's specialty?
- Matthew Gutierrez is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Gutierrez located?
- Matthew Gutierrez's practice location on file with NPPES is 20 Allen St, Martinez, CA 94553-2681.
- What is Matthew Gutierrez's phone number?
- The practice phone number listed in the NPPES registry for Matthew Gutierrez is (925) 370-5000.
- Does Matthew Gutierrez accept Medicare?
- Matthew Gutierrez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Gutierrez's NPI active?
- Yes — Matthew Gutierrez's NPI (1639245608) is active in the NPPES registry as of the last update on 2015-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.