What is Margaret Hallahan's specialty?

Margaret Hallahan (NPI 1972818540) is a Medicare-billing provider whose primary specialty is Internal Medicine in Huntingdon, PA.

Where does Margaret Hallahan practice?

Margaret Hallahan practices in Huntingdon, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1972818540.

How much does Medicare pay Margaret Hallahan?

Margaret Hallahan (NPI 1972818540) received approximately $44K in total Medicare Part B payments, serving 167 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1972818540

Margaret HallahanD.O.

PRACTICERAYSTOWN IMAGING, INCSee all providers at this practice →

Internal MedicineHuntingdon, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

338

Unique beneficiaries

—

Total services

688

Distinct HCPCS

Medicare payment

$36K

Peer benchmark

Total Medicare services vs. 4,434 Internal Medicine providers in PA — above median (cohort median 550).

PRESCRIBING · PART D · 2024

Total Rx claims

16,254

Beneficiaries

—

Total drug cost

$1.1M

Distinct drugs

195

Brand share

22.2%

Top prescribed drugs

Atorvastatin Calcium751 claims

Levothyroxine Sodium550 claims

Gabapentin477 claims

Furosemide469 claims

Pantoprazole Sodium449 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$34

Payment records

By payment type

Food and Beverage$34

Top paying entities

Food and Beverage$34

REFERRAL NETWORK

Where Margaret Hallahan'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). 39 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Jennifer Holt Family Practice · Huntingdon, PA	154	550
David Hursh Diagnostic Radiology · Pittsburgh, PA	93	368
Edward Schmidt Diagnostic Radiology · Charlottesville, VA	68	192
Michael Sabatini Interventional Cardiology · Altoona, PA	58	278
SAYLOR, RANDALL	50	124
Atul Gupta Diagnostic Radiology · Richmond, VA	48	149
Michael Gaugler Gastroenterology · Huntingdon, PA	47	241
Michael Reiser Diagnostic Radiology · Pittsburgh, PA	47	188
SCHALL, JAMES	39	353
Daniel Delp Family Practice · Huntingdon, PA	32	239
Dalton Daniel Diagnostic Radiology · Manassas, VA	30	107
Harjot Dulai Diagnostic Radiology · Clovis, CA	30	150

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