What is William Chung's specialty?

William Chung (NPI 1831204486) is a Medicare-billing provider whose primary specialty is Internal Medicine in San Francisco, CA.

Where does William Chung practice?

William Chung practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1831204486.

How much does Medicare pay William Chung?

William Chung (NPI 1831204486) received approximately $75K in total Medicare Part B payments, serving 448 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1831204486

William ChungM.D.

Internal MedicineSan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

875

Unique beneficiaries

—

Total services

1,357

Distinct HCPCS

Medicare payment

$71K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

3,218

Beneficiaries

—

Total drug cost

$297K

Distinct drugs

Brand share

13.9%

Top prescribed drugs

Losartan Potassium456 claims

Amlodipine Besylate293 claims

Atorvastatin Calcium249 claims

Simvastatin180 claims

Metformin Hcl136 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$85

Payment records

By payment type

Food and Beverage$85

Top paying entities

Food and Beverage$85

REFERRAL NETWORK

Where William Chung'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). 26 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Rong Shen Family Practice · San Francisco, CA	38	108
Chuk Kwan Internal Medicine · San Francisco, CA	36	82
O'CONNOR, MICHAEL	36	58
Shu Wing Chan Internal Medicine · San Francisco, CA	33	71
NPI 1144360041	30	58
City & County Of San Francisco Ambulance Service Provider · San Francisco, CA	24	47
LOW, RANDALL	24	88
Ervin Wong Ophthalmology · San Francisco, CA	23	57
Wenguang Zhao Family Practice · San Francisco, CA	22	71
Clifford Chew Otolaryngology · San Francisco, CA	21	46
Kin-Kee Pun Internal Medicine · San Francisco, CA	19	53
BORGESON, MICHELE	17	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