What is Stuart Chalfin's specialty?

Stuart Chalfin (NPI 1699871608) is a Medicare-billing provider whose primary specialty is Urology in Los Alamitos, CA.

Where does Stuart Chalfin practice?

Stuart Chalfin practices in Los Alamitos, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1699871608.

How much does Medicare pay Stuart Chalfin?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Stuart Chalfin (NPI 1699871608) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1699871608

Stuart Chalfin

UrologyLos Alamitos, CAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Stuart Chalfin'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). 46 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	190	870
Ankit Patel Diagnostic Radiology · Orange, CA	61	205
BROWN, KENNETH	56	145
Randy Fanous Diagnostic Radiology · San Diego, CA	48	125
Bret Witter Cardiology · Los Alamitos, CA	44	249
RICHIE, DOUGLAS	37	122
Vincent Polek Diagnostic Radiology · Los Alamitos, CA	37	92
Kay Yan Diagnostic Radiology · Signal Hill, CA	35	77
Bradley Hatfield Diagnostic Radiology · Mission Hills, CA	33	116
Adrian Shandling Cardiology · Los Alamitos, CA	31	361
WEST COAST CLINICAL LABORATORIES, INC.	30	110
DIGNITY HEALTH	29	172

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