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PROVIDER PROFILE · NPI 1205033420

Christopher Hamerski

GastroenterologySan Francisco, CAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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MEDICARE UTILIZATION · PART B · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050076
Hospital
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
26
Beneficiaries
—
Total drug cost
$204
Distinct drugs
1
Brand share
0.0%
Top prescribed drugs
Ciprofloxacin Hcl26 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$109
Payment records
3
By payment type
Food and Beverage$109
REFERRAL NETWORK

Where Christopher Hamerski'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). 16 inbound referrers · 67 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
GARCIA-KENNEDY, RICHARD55114
CARPENTER, HOWARD2537
STEVENS, SUSAN2546
John Moretto
Pathology · San Francisco, CA
2449
Garmen Woo
Internal Medicine · Oakland, CA
1957
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC1651
Michael Yanakakis
Anesthesiology · San Francisco, CA
1532
Hanieh Rad
Internal Medicine · Tualatin, OR
1436
Falck Northern California Corp.
Ambulance Service Provider · Hayward, CA
1419
Myron Marx
Diagnostic Radiology · San Francisco, CA
1440
Matthew Mcandrew
Hospitalist · San Francisco, CA
1430
NPI 12755679431426
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
SUTTER BAY HOSPITALS4591,228
JACKSON, THOMAS64134
Heba Kamal
Pathology · San Francisco, CA
55114
Judith Doyle
Pathology · San Francisco, CA
51120
Scott Murry
Anesthesiology · New York, NY
4584
Shine Yun
Pathology · Philadelphia, PA
4396
GREENBERG, JASON4391
Ian Jaffee
Pathology · San Francisco, CA
4283
Unilab Corporation
Clinical Laboratory · Sacramento, CA
36149
Maya Meux
Diagnostic Radiology · San Francisco, CA
3464
TSAI, YEH-KUANG3371
NPI 15785305313066
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.