Ann-Marie Williams, PA-C
NPI 1164549341 · Surgical Physician Assistant · Watertown, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann-Marie Williams, PA-C is a Surgical Physician Assistant provider in Watertown, CT (NPI 1164549341).
Provider details
- NPI number
- 1164549341
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 002034 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 2800 Main StBridgeport, CT 06606-4292Phone: (203) 576-6000
Registry dates
- Enumerated
- 2007-03-23
- Last updated
- 2025-03-11
- Certified
- 2025-03-11
Frequently asked questions
- What is Ann-Marie Williams's NPI number?
- Ann-Marie Williams's National Provider Identifier (NPI) is 1164549341, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann-Marie Williams's specialty?
- Ann-Marie Williams is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ann-Marie Williams located?
- Ann-Marie Williams's practice location on file with NPPES is 595 Straits Tpke, Watertown, CT 06795-3393.
- What is Ann-Marie Williams's phone number?
- The practice phone number listed in the NPPES registry for Ann-Marie Williams is (844) 482-7285.
- Does Ann-Marie Williams accept Medicare?
- Ann-Marie Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann-Marie Williams's NPI active?
- Yes — Ann-Marie Williams's NPI (1164549341) is active in the NPPES registry as of the last update on 2025-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.