Mary Williams, APNP
NPI 1144415068 · Family Nurse Practitioner · Mequon, WI
Mary Williams, APNP is a Family Nurse Practitioner provider in Mequon, WI (NPI 1144415068).
Provider details
- NPI number
- 1144415068
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- No
- License
- 1002-033 (WI)
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
18 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
- 2007-09-13
- Last updated
- 2007-09-13
Frequently asked questions
- What is Mary Williams's NPI number?
- Mary Williams's National Provider Identifier (NPI) is 1144415068, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Williams's specialty?
- Mary Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Williams located?
- Mary Williams's practice location on file with NPPES is 11270 N Port Washington Rd, Mequon, WI 53092-3410.
- What is Mary Williams's phone number?
- The practice phone number listed in the NPPES registry for Mary Williams is (866) 825-3227.
- Is Mary Williams's NPI active?
- Yes — Mary Williams's NPI (1144415068) is active in the NPPES registry as of the last update on 2007-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.