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PROVIDER PROFILE · NPI 1841379070

Frederick PenczakMD

General SurgerySan Rafael, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
271
Unique beneficiaries
—
Total services
275
Distinct HCPCS
4
Medicare payment
$50K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,763 General Surgery providers in CA — above median (cohort median 269).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Frederick Penczak'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). 15 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MARIN GENERAL HOSPITAL103191
SUTTER BAY HOSPITALS72161
Donna Hoghooghi
Diagnostic Radiology · Greenbrae, CA
3042
Robert Teasdale
Orthopedic Surgery · Greenbrae, CA
28141
ORWIG, DENNIS2737
Robert Wirth
Diagnostic Radiology · Novato, CA
2430
Philip Kurzman
Diagnostic Radiology · Greenbrae, CA
2231
TERNLUND, STEPHEN1921
William Demartini
Diagnostic Radiology · Greenbrae, CA
1628
Southern Marin Emergency Medical Paramedic System
Ambulance Service Provider · Tiburon, CA
1617
Daniel Solomon
Orthopedic Surgery · Larkspur, CA
1555
Brian Nagai
Diagnostic Radiology · Fremont, CA
1420
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.