What is Hwang Junn's specialty?

Hwang Junn (NPI 1659539195) is a Medicare-billing provider whose primary specialty is Internal Medicine in Annandale, VA.

Where does Hwang Junn practice?

Hwang Junn practices in Annandale, VA, based on the location reported in the CMS Medicare provider datasets for NPI 1659539195.

How much does Medicare pay Hwang Junn?

Hwang Junn (NPI 1659539195) received approximately $255K in total Medicare Part B payments, serving 116 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1659539195

Hwang JunnM.D.

Internal MedicineAnnandale, VAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,617

Unique beneficiaries

—

Total services

4,850

Distinct HCPCS

Medicare payment

$243K

Peer benchmark

Total Medicare services vs. 2,091 Internal Medicine providers in VA — top quintile (cohort median 769).

PRESCRIBING · PART D · 2024

Total Rx claims

4,809

Beneficiaries

—

Total drug cost

$850K

Distinct drugs

Brand share

20.9%

Top prescribed drugs

Atorvastatin Calcium463 claims

Losartan Potassium282 claims

Amlodipine Besylate264 claims

Rosuvastatin Calcium253 claims

Fluticasone Propionate243 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

100.0

Cost

81.3

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

1.05%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$13

Payment records

By payment type

Food and Beverage$13

Top paying entities

Food and Beverage$13

REFERRAL NETWORK

Where Hwang Junn'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
James Park Ophthalmology · Vienna, VA	28	65
Mu Hong Gastroenterology · Annandale, VA	14	50
Ohsang Ro Family Practice · Annandale, VA	13	114
Kathryn Grumbach Diagnostic Radiology · Fairfax, VA	12	35
Director Of Finance-County Of Fairfax Va Ambulance Service Provider · Fairfax, VA	12	47

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events