Nathan Simarro, D.D.S.
NPI 1144637661 · Public Health Dentistry · Antioch, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Simarro, D.D.S. is a Public Health Dentistry provider in Antioch, CA (NPI 1144637661).
Provider details
- NPI number
- 1144637661
- Entity type
- Individual
- Primary specialty
- Public Health DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 63666 (CA)
Specialties & taxonomies
Dental Providers
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2014-07-16
- Last updated
- 2026-02-18
- Certified
- 2026-02-18
Frequently asked questions
- What is Nathan Simarro's NPI number?
- Nathan Simarro's National Provider Identifier (NPI) is 1144637661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Simarro's specialty?
- Nathan Simarro is listed in the NPPES registry with a primary specialty of Public Health Dentistry (Dental Providers).
- Where is Nathan Simarro located?
- Nathan Simarro's practice location on file with NPPES is 5201 Deer Valley Road Suite #3b, Antioch, CA 94531.
- What is Nathan Simarro's phone number?
- The practice phone number listed in the NPPES registry for Nathan Simarro is (925) 723-9090.
- Does Nathan Simarro accept Medicare?
- Nathan Simarro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Simarro's NPI active?
- Yes — Nathan Simarro's NPI (1144637661) is active in the NPPES registry as of the last update on 2026-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.