Jonnika Williams, DNP
NPI 1518440775 · Family Nurse Practitioner · Saginaw, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonnika Williams, DNP is a Family Nurse Practitioner provider in Saginaw, MI (NPI 1518440775).
Provider details
- NPI number
- 1518440775
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4704880775 (MI)
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
7 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 18 | 15 |
| Amlodipine Besylate | 13 | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-09-12
- Last updated
- 2019-08-29
Frequently asked questions
- What is Jonnika Williams's NPI number?
- Jonnika Williams's National Provider Identifier (NPI) is 1518440775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonnika Williams's specialty?
- Jonnika Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jonnika Williams located?
- Jonnika Williams's practice location on file with NPPES is 2110 N Morson St, Saginaw, MI 48602-3456.
- What is Jonnika Williams's phone number?
- The practice phone number listed in the NPPES registry for Jonnika Williams is (313) 646-0846.
- Does Jonnika Williams accept Medicare?
- Jonnika Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonnika Williams's NPI active?
- Yes — Jonnika Williams's NPI (1518440775) is active in the NPPES registry as of the last update on 2019-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.