What is Norman Callahan's specialty?

Norman Callahan (NPI 1851367783) is a Medicare-billing provider whose primary specialty is Gastroenterology in Malvern, PA.

Where does Norman Callahan practice?

Norman Callahan practices in Malvern, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1851367783.

How much does Medicare pay Norman Callahan?

Norman Callahan (NPI 1851367783) received approximately $228K in total Medicare Part B payments, serving 713 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851367783

Norman CallahanD.O.

PRACTICEMAIN LINE GASTROENTEROLOGY ASSOCIATES, PCSee all providers at this practice →

GastroenterologyMalvern, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

949

Unique beneficiaries

—

Total services

5,789

Distinct HCPCS

Medicare payment

$194K

Peer benchmark

Total Medicare services vs. 771 Gastroenterology providers in PA — top quintile (cohort median 585).

PRESCRIBING · PART D · 2024

Total Rx claims

775

Beneficiaries

—

Total drug cost

$1.1M

Distinct drugs

Brand share

17.3%

Top prescribed drugs

Omeprazole267 claims

Pantoprazole Sodium223 claims

Famotidine58 claims

Ustekinumab36 claims

Dexlansoprazole21 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Education$30

Top paying entities

Food and Beverage$2K

Education$30

REFERRAL NETWORK

Where Norman Callahan'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). 53 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MAIN LINE HOSPITALS, INC.	301	884
Main Line Pa Endoscopy Asc Lp Ambulatory Surgical Center · Malvern, PA	110	138
Brian Plasil Pathology · Baltimore, MD	63	76
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	57	127
Jenifer Slone Diagnostic Radiology · Paoli, PA	42	50
Robert Pinsk Diagnostic Radiology · Paoli, PA	42	52
MAIN LINE HOSPITALS, INC.	37	68
Andrew Bowman Cardiology · Paoli, PA	35	83
Matthew Sewell Cardiology · Paoli, PA	31	112
Valerie Greco-Hunt Diagnostic Radiology · Paoli, PA	30	39
Leo Podolsky Cardiology · Paoli, PA	30	51
Lee Peng Hospitalist · Bryn Mawr, PA	28	56

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