IndividualActive
Michael Santos, M.D.
NPI 1023253481 · Family Medicine Physician · Fairfield, CA
Michael Santos, M.D. is a Family Medicine Physician provider in Fairfield, CA (NPI 1023253481).
Provider details
- NPI number
- 1023253481
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A107256 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
2720 Low Ct
Fairfield, CA 94534-9771
Phone: (707) 427-4900
Fax: (707) 432-2533
Street-level locationGet directions
Mailing address
10470 Old Placerville Rd
Sacramento, CA 95827-2539
Registry dates
- Enumerated
- 2008-12-12
- Last updated
- 2021-12-08
Frequently asked questions
- What is Michael Santos's NPI number?
- Michael Santos's National Provider Identifier (NPI) is 1023253481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Santos's specialty?
- Michael Santos is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Santos located?
- Michael Santos's practice location on file with NPPES is 2720 Low Ct, Fairfield, CA 94534-9771.
- What is Michael Santos's phone number?
- The practice phone number listed in the NPPES registry for Michael Santos is (707) 427-4900.
- Is Michael Santos's NPI active?
- Yes — Michael Santos's NPI (1023253481) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.