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PROVIDER PROFILE · NPI 1447321807

William ZirkerMD

Internal MedicineCrum Lynne, PAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$268
Payment records
13
By payment type
Food and Beverage$268
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
2,797
Beneficiaries
—
Total drug cost
$203K
Distinct drugs
65
Brand share
13.5%
Top prescribed drugs
Atorvastatin Calcium241 claims
Amlodipine Besylate213 claims
Levothyroxine Sodium145 claims
Pantoprazole Sodium125 claims
Metformin Hcl119 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
152
Unique beneficiaries
—
Total services
203
Distinct HCPCS
7
Medicare payment
$13K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 4,434 Internal Medicine providers in PA — below median (cohort median 550).
REFERRAL NETWORK

Where William Zirker'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). 32 inbound referrers · 62 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
CROZER-CHESTER MEDICAL CENTER1731,180
Humaira Mahbub
Internal Medicine · Upland, PA
84390
U S LAB & RADIOLOGY LLC73544
FALCK NORTHEAST CORP.53193
Krish Ramprasad
Diagnostic Radiology · Upland, PA
2864
David Kleinman
Clinical Cardiac Electrophysiology · Delray Beach, FL
2869
Lance Becker
Diagnostic Radiology · Tacoma, WA
27100
Stat Medical Transport Llc
Ambulance Service Provider · Drexel Hill, PA
24330
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Norristown, PA
23102
Andrew Gordon
Diagnostic Radiology · Voorhees, NJ
2376
Damon Soeiro
Diagnostic Radiology · Upland, PA
2279
Johari Crews
Nurse Practitioner · Philadelphia, PA
21148
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
CROZER-CHESTER MEDICAL CENTER108691
2507 CHESTNUT STREET OPERATIONS LLC102539
Humaira Mahbub
Internal Medicine · Upland, PA
86410
Craig Kriza
Podiatry · Upland, PA
84293
U S LAB & RADIOLOGY LLC69507
Symphony Diagnostic Services No 1 Llc
Portable X-Ray Supplier · Sparks, MD
61200
Tina Young
Physician Assistant · Lancaster, CA
60225
OSLER, JESSICA46265
FALCK NORTHEAST CORP.45112
Cyllene Briones
Psychiatry · Philadelphia, PA
40171
Yamunadevi Sadasivan
Internal Medicine · West Hazleton, PA
3099
FELSHER, JONATHAN2792
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.