Marneece Williams, MD
NPI 1285949412 · Obstetrics & Gynecology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marneece Williams, MD is a Obstetrics & Gynecology Physician provider in Phoenix, AZ (NPI 1285949412).
Provider details
- NPI number
- 1285949412
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Specialist174400000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2010-08-12
- Last updated
- 2019-09-09
Frequently asked questions
- What is Marneece Williams's NPI number?
- Marneece Williams's National Provider Identifier (NPI) is 1285949412, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marneece Williams's specialty?
- Marneece Williams is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Marneece Williams located?
- Marneece Williams's practice location on file with NPPES is 635 E Baseline Rd, Phoenix, AZ 85042-6551.
- What is Marneece Williams's phone number?
- The practice phone number listed in the NPPES registry for Marneece Williams is (602) 243-7277.
- Does Marneece Williams accept Medicare?
- Marneece Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marneece Williams's NPI active?
- Yes — Marneece Williams's NPI (1285949412) is active in the NPPES registry as of the last update on 2019-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.