Ahdaysia Williamson-Mcallister, PA-C
NPI 1083435044 · Physician Assistant · White Plains, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ahdaysia Williamson-Mcallister, PA-C is a Physician Assistant provider in White Plains, MD (NPI 1083435044).
Provider details
- NPI number
- 1083435044
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2024-10-22
- Last updated
- 2026-04-24
- Certified
- 2026-04-24
Frequently asked questions
- What is Ahdaysia Williamson-Mcallister's NPI number?
- Ahdaysia Williamson-Mcallister's National Provider Identifier (NPI) is 1083435044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ahdaysia Williamson-Mcallister's specialty?
- Ahdaysia Williamson-Mcallister is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ahdaysia Williamson-Mcallister located?
- Ahdaysia Williamson-Mcallister's practice location on file with NPPES is 4470 Regency Pl Ste 106, White Plains, MD 20695-3085.
- What is Ahdaysia Williamson-Mcallister's phone number?
- The practice phone number listed in the NPPES registry for Ahdaysia Williamson-Mcallister is (240) 252-2140.
- Does Ahdaysia Williamson-Mcallister accept Medicare?
- Ahdaysia Williamson-Mcallister is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ahdaysia Williamson-Mcallister's NPI active?
- Yes — Ahdaysia Williamson-Mcallister's NPI (1083435044) is active in the NPPES registry as of the last update on 2026-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.