Mara Williams, PA-C
NPI 1770952095 · Physician Assistant · Madison, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mara Williams, PA-C is a Physician Assistant provider in Madison, WI (NPI 1770952095).
Provider details
- NPI number
- 1770952095
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Marriage & Family Therapist106H00000X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 53 | 23 |
| Furosemide | 46 | 22 |
| Losartan Potassium | 40 | 19 |
| Hydralazine Hcl | 35 | 12 |
| Lisinopril | 28 | 13 |
| Metoprolol Succinate | 24 | — |
| Calcitriol | 21 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-09-16
- Last updated
- 2022-07-21
- Certified
- 2022-07-21
Frequently asked questions
- What is Mara Williams's NPI number?
- Mara Williams's National Provider Identifier (NPI) is 1770952095, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mara Williams's specialty?
- Mara Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mara Williams located?
- Mara Williams's practice location on file with NPPES is 8025 Excelsior Dr, Madison, WI 53717-1900.
- What is Mara Williams's phone number?
- The practice phone number listed in the NPPES registry for Mara Williams is (608) 663-6154.
- Does Mara Williams accept Medicare?
- Mara Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mara Williams's NPI active?
- Yes — Mara Williams's NPI (1770952095) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.