PROVIDER PROFILE · NPI 1245204338

Marc MerbaumM.D.

Internal MedicineSaint Louis, MOI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,924

Unique beneficiaries

—

Total services

2,622

Distinct HCPCS

Medicare payment

$66K

Peer benchmark

Total Medicare services vs. 1,563 Internal Medicine providers in MO — top quintile (cohort median 658).

PRESCRIBING · PART D · 2024

Total Rx claims

12,394

Beneficiaries

—

Total drug cost

$952K

Distinct drugs

137

Brand share

20.0%

Top prescribed drugs

Amlodipine Besylate787 claims

Lisinopril718 claims

Atorvastatin Calcium552 claims

Levothyroxine Sodium518 claims

Metoprolol Succinate506 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$147

Payment records

By payment type

Food and Beverage$147

Top paying entities

Food and Beverage$147

REFERRAL NETWORK

Where Marc Merbaum'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). 9 inbound referrers · 22 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MERCY HOSPITALS EAST COMMUNITIES	208	1,302
ROSENTHAL, DEBRA	24	67
Cindy Zhang Diagnostic Radiology · Saint Louis, MO	22	75
ST. LUKES EPISCOPAL-PRESBYTERIAN HOSPITAL	18	51
MERCY HEALTH SERVICES LLC	17	63
Jeffrey Reed Dermatology · Saint Louis, MO	16	40
Toni Roth Diagnostic Radiology · Saint Louis, MO	16	46
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Maryland Heights, MO	12	29
Robert Ferrara Cardiology · Saint Louis, MO	11	29

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MERCY HOSPITALS EAST COMMUNITIES	324	2,666
BOURGEOIS, NANCY	27	54
Donald Grunz Diagnostic Radiology · Saint Louis, MO	23	69
Labone Llc Clinical Laboratory · Lenexa, KS	20	58
Donna Igou Diagnostic Radiology · Saint Louis, MO	19	46
Thomas Applewhite Diagnostic Radiology · Saint Louis, MO	18	46
Deborah Wadsworth Diagnostic Radiology · Saint Louis, MO	18	46
ST. LUKES EPISCOPAL-PRESBYTERIAN HOSPITAL	17	47
Kerri Harting Diagnostic Radiology · Plymouth, MN	16	54
Cindy Zhang Diagnostic Radiology · Saint Louis, MO	14	36
Jeffrey Reed Dermatology · Saint Louis, MO	14	34
Deryk Mcdowell Cardiology · Saint Louis, MO	14	35

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