Mara Leone Williams, PA-C
Physician Assistant · Madison, WI
Mara Leone Williams, PA-C is a physician assistant with a practice address in Madison, Wisconsin, and NPI 1770952095, issued on Sep 16, 2015. Check the license (Wisconsin 5858, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mara Leone Williams
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5858 WI
Self-reported in NPPES; status is on the state search - Practice location
- 8025 Excelsior Dr, Madison, WI 53717
- Phone
- (608) 663-6154
- Enumerated
- Sep 16, 2015
- Record last updated
- Jul 21, 2022
- Medicare enrollment
- Enrolled (PECOS I20221007000546); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,475 in Wisconsin → Look up another NPI →
Also registered at 8025 Excelsior Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Holland McCrea Olson, M.S. MFTMarriage & Family Therapist1447984273
- Atala-Nicole Mitchell, MS, MFTMarriage & Family Therapist1063955904
Verify Mara Leone Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 5858Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average physician assistant in 2024
618 Medicare Part D claims for 212 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Amlodipine Besylate53 claims
- Furosemide46 claims
- Losartan Potassium40 claims
- Hydralazine Hcl35 claims
- Lisinopril28 claims
- Metoprolol Succinate24 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Sauk Prairie Healthcare IncPrairie Du Sac, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mara Leone Williams among 3,475 physician assistant records in Wisconsin
Mara Leone Williams, PA-C is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 49% of them.
- NPI issued2015 · 49% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2022 · median 2016 among the 2,491 with a school on file
- Record last updated2022 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
396 physician assistant records list a practice address in Madison
They are 396 of the 15,014 NPPES records with a practice address in Madison, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in Madison → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Carrie Bach, PA-C, MPASMadison, WI 537171780679381
- Krista Crawford, P.A.Madison, WI 537171740317882
- Amanda Devoss, PA-CMadison, WI 537171821117532
- Ward Dieter, PAMadison, WI 537171659397891
- Ivalee Dowd, PAMadison, WI 537171124044383
- Virginia Evans, PA-CMadison, WI 537171639289770
- Ann Hartman, PA-CMadison, WI 537171043281454
- Megan Kushner, PA-CMadison, WI 537171720046030
Common questions
What is Mara Leone Williams, PA-C's NPI number?
Mara Leone Williams, PA-C's National Provider Identifier (NPI) is 1770952095, issued on Sep 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mara Leone Williams, PA-C located?
The NPPES record lists a practice address at 8025 Excelsior Dr, Madison, WI, 53717. Phone: (608) 663-6154. Providers update this record themselves, so call before visiting.
How can I verify Mara Leone Williams, PA-C's license?
NPPES lists Wisconsin license number 5858, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Mara Leone Williams, PA-C prescribe under Medicare Part D?
In 2024, Mara Leone Williams, PA-C had 618 Medicare Part D claims for 212 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Mara Leone Williams, PA-C's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.