What is Stephen Marer's specialty?

Stephen Marer (NPI 1043281322) is a Medicare-billing provider whose primary specialty is Internal Medicine in Los Angeles, CA.

Where does Stephen Marer practice?

Stephen Marer practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1043281322.

How much does Medicare pay Stephen Marer?

Stephen Marer (NPI 1043281322) received approximately $71K in total Medicare Part B payments, serving 277 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1043281322

Stephen MarerMD

Internal MedicineLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

491

Unique beneficiaries

—

Total services

795

Distinct HCPCS

Medicare payment

$69K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$185

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Amlodipine Besylate22 claims

Furosemide21 claims

Metoprolol Succinate12 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050353

Hospital

REFERRAL NETWORK

Where Stephen Marer'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). 0 inbound referrers · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

No inbound pairs above the suppression threshold.

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
LONG BEACH MEMORIAL MEDICAL	90	132
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	12	21

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