What is Gary Ahn's specialty?

Gary Ahn (NPI 1639260441) is a Medicare-billing provider whose primary specialty is Hospitalist in Honolulu, HI.

Where does Gary Ahn practice?

Gary Ahn practices in Honolulu, HI, based on the location reported in the CMS Medicare provider datasets for NPI 1639260441.

How much does Medicare pay Gary Ahn?

Gary Ahn (NPI 1639260441) received approximately $35K in total Medicare Part B payments, serving 82 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639260441

Gary AhnMD

PRACTICELONGS DRUG STORE #185See all providers at this practice →

HospitalistHonolulu, HII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

198

Unique beneficiaries

—

Total services

431

Distinct HCPCS

Medicare payment

$35K

Peer benchmark

Total Medicare services vs. 126 Hospitalist providers in HI — above median (cohort median 264).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$198

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Pantoprazole Sodium12 claims

QUALITY · MIPS · 2024

Final MIPS score

97.0

Quality

89.8

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.93%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Gary 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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Diagnostic Laboratory Services, Inc Clinical Laboratory · Aiea, HI	214	549
THE QUEEN'S MEDICAL CENTER	119	440
Kiley Perrich Diagnostic Radiology · Honolulu, HI	17	37
Jenny Uramoto Obstetrics & Gynecology · Honolulu, HI	16	34
Ryan Matsuo Interventional Radiology · Honolulu, HI	14	27
Clayton Yamada Diagnostic Radiology · Honolulu, HI	13	35
Nathalie Sowers Podiatry · Honolulu, HI	12	34
Kristen Nagata Diagnostic Radiology · Honolulu, HI	11	19

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.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history