What is Brian Callaghan's specialty?

Brian Callaghan (NPI 1619032901) is a Medicare-billing provider whose primary specialty is Neurology in Ann Arbor, MI.

Where does Brian Callaghan practice?

Brian Callaghan practices in Ann Arbor, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1619032901.

How much does Medicare pay Brian Callaghan?

Brian Callaghan (NPI 1619032901) received approximately $3K in total Medicare Part B payments, serving 29 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619032901

Brian CallaghanMD

NeurologyAnn Arbor, MII

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$818

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Gabapentin18 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 Brian Callaghan'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). 3 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	112	479
Nancy Egerer Nurse Practitioner · Ann Arbor, MI	15	84
Ramil Goel Clinical Cardiac Electrophysiology · Gainesville, FL	12	19

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