What is Hannah Gilligan's specialty?

Hannah Gilligan (NPI 1518044080) is a Medicare-billing provider whose primary specialty is Nephrology in Boston, MA.

Where does Hannah Gilligan practice?

Hannah Gilligan practices in Boston, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1518044080.

How much does Medicare pay Hannah Gilligan?

Hannah Gilligan (NPI 1518044080) received approximately $83K in total Medicare Part B payments, serving 311 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518044080

Hannah GilliganMD

NephrologyBoston, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

586

Unique beneficiaries

—

Total services

999

Distinct HCPCS

Medicare payment

$79K

Peer benchmark

Total Medicare services vs. 270 Nephrology providers in MA — above median (cohort median 904).

PRESCRIBING · PART D · 2024

Total Rx claims

1,827

Beneficiaries

—

Total drug cost

$163K

Distinct drugs

Brand share

8.8%

Top prescribed drugs

Prednisone350 claims

Amlodipine Besylate173 claims

Tacrolimus145 claims

Carvedilol87 claims

Atorvastatin Calcium86 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Hannah 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). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
THE GENERAL HOSPITAL CORPORATION	233	2,867
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	64	1,241
Eliot Heher Nephrology · Boston, MA	62	473
Parsia Vagefi General Surgery · Boston, MA	41	201
Tatsuo Kawai General Surgery · Boston, MA	37	173
David Wojciechowski Nephrology · Dallas, TX	25	111
Ajay Singh Diagnostic Radiology · Boston, MA	20	46
John Godine Endocrinology · Boston, MA	20	171
Dicken Ko Urology · Providence, RI	20	144
Matthew Gilman Diagnostic Radiology · Boston, MA	20	54
Gerald Abbott Diagnostic Radiology · Boston, MA	19	59
PATTI, JOHN	18	55

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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