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PROVIDER PROFILE · NPI 1487613022

John ZapasM.D.

PRACTICEFREDERICK HEALTH HOSPITAL INCSee all providers at this practice →
Surgical OncologyFrederick, MDI
CROSS-REFERENCE

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PRESCRIBING · PART D · 2024
Total Rx claims
51
Beneficiaries
—
Total drug cost
$62
Distinct drugs
1
Brand share
0.0%
Top prescribed drugs
Oxycodone Hcl51 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
281
Unique beneficiaries
—
Total services
288
Distinct HCPCS
9
Medicare payment
$46K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 23 Surgical Oncology providers in MD — above median (cohort median 312).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$404
Payment records
12
By payment type
Food and Beverage$404
QUALITY · MIPS · 2024
Final MIPS score
83.1
Quality
75.5
Cost
68.1
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.34%
Group
REFERRAL NETWORK

Where John Zapas'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). 18 inbound referrers · 27 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Rizwana Afzal
Diagnostic Radiology · Frederick, MD
32111
David Rhee
Diagnostic Radiology · Frederick, MD
3072
Marsha Naydich
Diagnostic Radiology · Eden Prairie, MN
2572
Frederick County Maryland
Ambulance Service Provider · Frederick, MD
2449
Sherwin Danaie
Diagnostic Radiology · Frederick, MD
2372
Natasha Annor
General Surgery · Culpeper, VA
2268
BENNETT, MATTHEW2159
Hitesh Patel
Cardiology · Frederick, MD
2059
Jay Lehman
Diagnostic Radiology · Ephrata, PA
1957
Peter Kremers
Diagnostic Radiology · Frederick, MD
1856
Livio Romani
General Surgery · Hinton, WV
1742
Mark Glass-Royal
Diagnostic Radiology · Frederick, MD
1556
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
FREDERICK HEALTH HOSPITAL INC111544
Rizwana Afzal
Diagnostic Radiology · Frederick, MD
2561
Ashish Barman
Pathology · Frederick, MD
2560
Sherwin Danaie
Diagnostic Radiology · Frederick, MD
2484
Anthony Rowedder
Diagnostic Radiology · Frederick, MD
2477
Judd Goldberg
Diagnostic Radiology · Frederick, MD
2470
David Rhee
Diagnostic Radiology · Frederick, MD
2156
Butler Medical Transport, Llc
Ambulance Service Provider · Windsor Mill, MD
1937
Marsha Naydich
Diagnostic Radiology · Eden Prairie, MN
1769
Chen Tung
Internal Medicine · Frederick, MD
1542
David Yu
Cardiology · Frederick, MD
1529
Natasha Annor
General Surgery · Culpeper, VA
1425
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.