Hannah Williams, MD
NPI 1639666209 · Psychiatry Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Williams, MD is a Psychiatry Physician provider in Grand Rapids, MI (NPI 1639666209).
Provider details
- NPI number
- 1639666209
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301114573 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-04-18
- Last updated
- 2023-04-25
- Certified
- 2023-04-25
Frequently asked questions
- What is Hannah Williams's NPI number?
- Hannah Williams's National Provider Identifier (NPI) is 1639666209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Williams's specialty?
- Hannah Williams is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Hannah Williams located?
- Hannah Williams's practice location on file with NPPES is 300 68th St Se, Grand Rapids, MI 49548.
- What is Hannah Williams's phone number?
- The practice phone number listed in the NPPES registry for Hannah Williams is (616) 456-0842.
- Does Hannah Williams accept Medicare?
- Hannah Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Williams's NPI active?
- Yes — Hannah Williams's NPI (1639666209) is active in the NPPES registry as of the last update on 2023-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.