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PROVIDER PROFILE · NPI 1851367783

Norman CallahanD.O.

PRACTICEMAIN LINE GASTROENTEROLOGY ASSOCIATES, PCSee all providers at this practice →
GastroenterologyMalvern, PAI
CROSS-REFERENCE

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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
949
Unique beneficiaries
—
Total services
5,789
Distinct HCPCS
18
Medicare payment
$194K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
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
16
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
82
By payment type
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
PhysicianPatientsVisits
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31112
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3039
Leo Podolsky
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3051
Lee Peng
Hospitalist · Bryn Mawr, PA
2856
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.