What is Thomas Ahn's specialty?

Thomas Ahn (NPI 1669556866) is a Medicare-billing provider whose primary specialty is Endocrinology in Los Angeles, CA.

Where does Thomas Ahn practice?

Thomas Ahn practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1669556866.

How much does Medicare pay Thomas Ahn?

Thomas Ahn (NPI 1669556866) received approximately $175K in total Medicare Part B payments, serving 437 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1669556866

Thomas AhnMD

PRACTICEABE GREEN MD A PROF MEDICAL CORPSee all providers at this practice →

EndocrinologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

6,231

Unique beneficiaries

—

Total services

9,328

Distinct HCPCS

Medicare payment

$169K

Peer benchmark

Total Medicare services vs. 633 Endocrinology providers in CA — top quintile (cohort median 1,164).

PRESCRIBING · PART D · 2024

Total Rx claims

4,366

Beneficiaries

—

Total drug cost

$801K

Distinct drugs

Brand share

31.5%

Top prescribed drugs

Levothyroxine Sodium367 claims

Rosuvastatin Calcium294 claims

Atorvastatin Calcium260 claims

Levothyroxine Sodium251 claims

Amlodipine Besylate149 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

43.3

Cost

69.6

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$3K

Payment records

119

By payment type

Food and Beverage$3K

Top paying entities

Food and Beverage$3K

REFERRAL NETWORK

Where Thomas 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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	218	703
Norman Lepor Cardiology · Beverly Hills, CA	29	156
PROVIDENCE SAINT JOHN'S HEALTH CENTER	24	61
Michel Babajanian Otolaryngology · Los Angeles, CA	12	33
PATHOLOGY, INC.	12	20

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