Steven Mares, MD
NPI 1639144686 · Pediatrics Physician · Williamsburg, VA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Mares, MD is a Pediatrics Physician provider in Williamsburg, VA (NPI 1639144686).
Provider details
- NPI number
- 1639144686
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101049927 (VA)
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
20 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
- 2006-02-22
- Last updated
- 2012-12-03
Frequently asked questions
- What is Steven Mares's NPI number?
- Steven Mares's National Provider Identifier (NPI) is 1639144686, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Mares's specialty?
- Steven Mares is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Mares located?
- Steven Mares's practice location on file with NPPES is 1162 Professional Dr, Williamsburg, VA 23185.
- What is Steven Mares's phone number?
- The practice phone number listed in the NPPES registry for Steven Mares is (757) 253-5757.
- Does Steven Mares accept Medicare?
- Steven Mares is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Mares's NPI active?
- Yes — Steven Mares's NPI (1639144686) is active in the NPPES registry as of the last update on 2012-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.