Sarah Williams, APN-BC, FNP-BC
NPI 1659387173 · Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Williams, APN-BC, FNP-BC is a Nurse Practitioner provider in Chicago, IL (NPI 1659387173).
Provider details
- NPI number
- 1659387173
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN-BC, FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 209-005327 (IL)
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
19 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 100 | 12 |
| Amlodipine Besylate | 26 | — |
| Elviteg/Cob/Emtri/Tenof Alafenbrand: Genvoya | 20 | — |
| Losartan/Hydrochlorothiazidebrand: Losartan-Hydrochlorothiazide | 15 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 14 | — |
| Losartan Potassium | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2017-04-10
Frequently asked questions
- What is Sarah Williams's NPI number?
- Sarah Williams's National Provider Identifier (NPI) is 1659387173, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Williams's specialty?
- Sarah Williams is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sarah Williams located?
- Sarah Williams's practice location on file with NPPES is 2525 S Michigan Ave, Chicago, IL 60616-2315.
- What is Sarah Williams's phone number?
- The practice phone number listed in the NPPES registry for Sarah Williams is (312) 791-3455.
- Does Sarah Williams accept Medicare?
- Sarah Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Williams's NPI active?
- Yes — Sarah Williams's NPI (1659387173) is active in the NPPES registry as of the last update on 2017-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.