Michelle Williamson, RN, NP
NPI 1508147661 · Obstetrics & Gynecology Nurse Practitioner · Whittier, CA
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Williamson, RN, NP is a Obstetrics & Gynecology Nurse Practitioner provider in Whittier, CA (NPI 1508147661).
Provider details
- NPI number
- 1508147661
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, NP
- Sex
- Female
- Sole proprietor
- No
- License
- 20465 (CA)
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
14 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
- 2011-09-02
- Last updated
- 2011-09-02
Frequently asked questions
- What is Michelle Williamson's NPI number?
- Michelle Williamson's National Provider Identifier (NPI) is 1508147661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Williamson's specialty?
- Michelle Williamson is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michelle Williamson located?
- Michelle Williamson's practice location on file with NPPES is 11161 Washington Blvd, Whittier, CA 90606-3007.
- What is Michelle Williamson's phone number?
- The practice phone number listed in the NPPES registry for Michelle Williamson is (562) 695-2250.
- Does Michelle Williamson accept Medicare?
- Michelle Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Williamson's NPI active?
- Yes — Michelle Williamson's NPI (1508147661) is active in the NPPES registry as of the last update on 2011-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.