What is Michael Stefan's specialty?

Michael Stefan (NPI 1134149099) is a Medicare-billing provider whose primary specialty is Internal Medicine in Los Angeles, CA.

Where does Michael Stefan practice?

Michael Stefan practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1134149099.

How much does Medicare pay Michael Stefan?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Michael Stefan (NPI 1134149099) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1134149099

Michael Stefan

Internal MedicineLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

4,704

Beneficiaries

—

Total drug cost

$654K

Distinct drugs

Brand share

18.2%

Top prescribed drugs

Atorvastatin Calcium372 claims

Amlodipine Besylate254 claims

Albuterol Sulfate210 claims

Losartan Potassium182 claims

Omeprazole171 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$78

Payment records

By payment type

Food and Beverage$78

Top paying entities

Food and Beverage$78

REFERRAL NETWORK

Where Michael Stefan'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 · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST VINCENT MEDICAL CENTER	114	722
Unilab Corporation Clinical Laboratory · West Hills, CA	58	221
WALUCH, VICTOR	49	262
Juan Carlos Echeverria Diagnostic Radiology · Arcadia, CA	42	251
H. Michael Mynatt Orthopedic Surgery · Los Angeles, CA	20	252
ST VINCENT MEDICAL CENTER	11	34
Raymond Gritton Physical Medicine and Rehabilitation · Arcadia, CA	11	138

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	107	289
ST VINCENT MEDICAL CENTER	83	347
WALUCH, VICTOR	62	270
E. Michael Mcmonigle Diagnostic Radiology · Los Angeles, CA	47	180
TSCHIRHART, DONALD	35	107
Conrad Lu Pathology · Los Angeles, CA	32	88
Lawrence Cohen Diagnostic Radiology · West Hollywood, CA	31	128
Thomas Schmalzried Orthopaedic Surgery · Los Angeles, CA	27	161
Juan Carlos Echeverria Diagnostic Radiology · Arcadia, CA	26	149
Der-Chen Huang Orthopedic Surgery · Saint Paul, MN	26	76
H. Michael Mynatt Orthopedic Surgery · Los Angeles, CA	21	248
Dwayne Cox Anesthesiology · Los Angeles, CA	16	66

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