What is John Fan's specialty?

John Fan (NPI 1780882910) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Orange, CA.

Where does John Fan practice?

John Fan practices in Orange, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1780882910.

How much does Medicare pay John Fan?

John Fan (NPI 1780882910) received approximately $259K in total Medicare Part B payments, serving 3,824 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1780882910

John FanM.D.

PRACTICEUC REGENTSSee all providers at this practice →

Diagnostic RadiologyOrange, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,669

Unique beneficiaries

—

Total services

14,350

Distinct HCPCS

Medicare payment

$214K

Peer benchmark

Total Medicare services vs. 3,474 Diagnostic Radiology providers in CA — top quintile (cohort median 2,975).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

92.4

Quality

75.0

Cost

77.2

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.73%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where John Fan'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). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Joseph Burns Diagnostic Radiology · Santa Barbara, CA	25	41
Hiroshi Yoshioka Diagnostic Radiology · Boston, MA	20	30
Byron J Allen Internal Medicine · Orange, CA	17	24
Nitin N Bhatia Orthopedic Surgery · Orange, CA	16	39
Ran Schwarzkopf Orthopedic Surgery · Orange, CA	15	44
S. Bederman Orthopedic Surgery · Orange, CA	12	29
PHAM, NGOCDIEP	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

Healthparse Signals

Monitor this provider for changes — dated NPI change events