What is Mary Ann Gilligan's specialty?

Mary Ann Gilligan (NPI 1023060829) is a Medicare-billing provider whose primary specialty is Internal Medicine in Milwaukee, WI.

Where does Mary Ann Gilligan practice?

Mary Ann Gilligan practices in Milwaukee, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1023060829.

How much does Medicare pay Mary Ann Gilligan?

Mary Ann Gilligan (NPI 1023060829) received approximately $6K in total Medicare Part B payments, serving 65 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1023060829

Mary Ann GilliganMD

PRACTICEMEDICAL COLLEGE OF WISCONSINSee all providers at this practice →

Internal MedicineMilwaukee, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 1,244 Internal Medicine providers in WI — bottom quintile (cohort median 578).

PRESCRIBING · PART D · 2024

Total Rx claims

3,765

Beneficiaries

—

Total drug cost

$298K

Distinct drugs

Brand share

17.6%

Top prescribed drugs

Atorvastatin Calcium321 claims

Lisinopril206 claims

Amlodipine Besylate190 claims

Gabapentin136 claims

Hydrochlorothiazide128 claims

QUALITY · MIPS · 2024

Final MIPS score

88.0

Quality

82.8

Cost

77.2

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.55%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Mary Ann Gilligan's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 1 inbound referrers · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	125	1,016

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	157	1,701
Margaret Meyer Nurse Practitioner · Milwaukee, WI	15	28
NPI 1487606976	13	27
Paul Bergl Critical Care (Intensivists) · La Crosse, WI	12	36
Rose Franco Pulmonary Disease · Milwaukee, WI	12	84

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events