What is Mark Mercier's specialty?

Mark Mercier (NPI 1548220296) is a Medicare-billing provider whose primary specialty is Emergency Medicine in Columbia, SC.

Where does Mark Mercier practice?

Mark Mercier practices in Columbia, SC, based on the location reported in the CMS Medicare provider datasets for NPI 1548220296.

How much does Medicare pay Mark Mercier?

Mark Mercier (NPI 1548220296) received approximately $49K in total Medicare Part B payments, serving 378 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1548220296

Mark MercierM.D.

Emergency MedicineColumbia, SCI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

367

Unique beneficiaries

—

Total services

386

Distinct HCPCS

Medicare payment

$46K

Peer benchmark

Total Medicare services vs. 958 Emergency Medicine providers in SC — above median (cohort median 413).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$94

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Cephalexin14 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.

REFERRAL NETWORK

Where Mark Mercier'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). 36 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BEAUFORT COUNTY MEMORIAL HOSPITAL	473	1,445
Clyde Blalock Diagnostic Radiology · Beaufort, SC	198	535
William Jackson Diagnostic Radiology · Beaufort, SC	171	398
Nicholas Dardes Internal Medicine · Beaufort, SC	44	137
HAWES, MARY	38	90
Randy Lagoc-Dingus Internal Medicine · Hilton Head Island, SC	37	85
David Phillips Emergency Medicine · Hilton Head Island, SC	36	80
Stacey Johnston Family Practice · South Bend, IN	36	64
Christopher Walker Internal Medicine · Hilton Head Island, SC	35	84
MEDICAL UNIVERSITY HOSPITAL AUTHORITY	34	82
Saeed Rehman Emergency Medicine · Beaufort, SC	34	88
Stuart Smalheiser Cardiology · Beaufort, SC	34	79

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