PROVIDER PROFILE · NPI 1396807806

Woo Sung AhnMD

Internal MedicineLakewood, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

227

Unique beneficiaries

—

Total services

699

Distinct HCPCS

Medicare payment

$39K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — above median (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

15,499

Beneficiaries

—

Total drug cost

$2.8M

Distinct drugs

143

Brand share

39.8%

Top prescribed drugs

Rosuvastatin Calcium1,160 claims

Atorvastatin Calcium821 claims

Losartan/Hydrochlorothiazide800 claims

Amlodipine Besylate732 claims

Icosapent Ethyl588 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$793

Payment records

By payment type

Food and Beverage$793

REFERRAL NETWORK

Where Woo Sung 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). 3 inbound referrers · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Primex Clinical Laboratories Inc. Clinical Laboratory · Van Nuys, CA	61	536
Babak Giladi Podiatry · Los Angeles, CA	27	71
GARDENS REGIONAL HOSPITAL AND MEDICAL CENTER INC	12	34

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
GRAPEVINE HOMECARE INC	44	113
Primex Clinical Laboratories Inc. Clinical Laboratory · Van Nuys, CA	41	229
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	41	76
Ms Diagnostic Laboratory Llc Clinical Laboratory · Anaheim, CA	37	129
Babak Giladi Podiatry · Los Angeles, CA	24	62
Joseph Lee Ophthalmology · Buena Park, CA	19	50

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.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history