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PROVIDER PROFILE · NPI 1568581759

Sang AhnM.D.

Hematology-OncologyLos Angeles, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
Healthparse Signals
Monitor this provider for changes — dated NPI change events
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

CCN 058077
Home health agency
CCN 058131
Home health agency
CCN 050168
Hospital
CCN 050660
Hospital
CCN 050696
Hospital
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025
Total received
$124
Payment records
4
By payment type
Food and Beverage$99
Education$26
Top paying entities
Food and Beverage$99
Education$26
PRESCRIBING · PART D · 2024
Total Rx claims
989
Beneficiaries
—
Total drug cost
$7.1M
Distinct drugs
28
Brand share
53.8%
Top prescribed drugs
Letrozole83 claims
Anastrozole83 claims
Eltrombopag Olamine78 claims
Osimertinib Mesylate75 claims
Abiraterone Acetate53 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
833
Unique beneficiaries
—
Total services
1,309
Distinct HCPCS
7
Medicare payment
$84K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 957 Hematology-Oncology providers in CA — below median (cohort median 4,173).
REFERRAL NETWORK

Where Sang Ahn'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). 55 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Clan Hahn
Hematology-Oncology · Los Angeles, CA
2041,982
Unilab Corporation
Clinical Laboratory · West Hills, CA
169735
ST VINCENT MEDICAL CENTER128530
Eugene Choi
Diagnostic Radiology · Los Angeles, CA
92450
Richard Yoo
Diagnostic Radiology · Los Angeles, CA
77640
Juan Carlos Echeverria
Diagnostic Radiology · Arcadia, CA
75486
WALUCH, VICTOR70286
Biocorp Clinical Lab Inc
Clinical Laboratory · Whittier, CA
50187
Pilsoo Oh
Gastroenterology · Los Angeles, CA
48284
NPI 1184686503473,750
Ho Bae
Gastroenterology · Los Angeles, CA
43240
City Of Los Angeles
Ambulance Service Provider · Los Angeles, CA
40165
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.