What is Robert Clark's specialty?

Robert Clark (NPI 1518944198) is a Medicare-billing provider whose primary specialty is Nephrology in Meridian, MS.

Where does Robert Clark practice?

Robert Clark practices in Meridian, MS, based on the location reported in the CMS Medicare provider datasets for NPI 1518944198.

How much does Medicare pay Robert Clark?

Robert Clark (NPI 1518944198) received approximately $154K in total Medicare Part B payments, serving 378 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518944198

Robert ClarkM.D.

PRACTICEJOEL T CALLAHAN THOMAS H GREER JR & A GARY BOONE PTRSee all providers at this practice →

NephrologyMeridian, MSI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

630

Unique beneficiaries

—

Total services

1,254

Distinct HCPCS

Medicare payment

$150K

Peer benchmark

Total Medicare services vs. 77 Nephrology providers in MS — below median (cohort median 1,706).

PRESCRIBING · PART D · 2024

Total Rx claims

1,384

Beneficiaries

—

Total drug cost

$446K

Distinct drugs

Brand share

18.9%

Top prescribed drugs

Sevelamer Carbonate157 claims

Amlodipine Besylate95 claims

Sucroferric Oxyhydroxide67 claims

Furosemide60 claims

Clonidine Hcl60 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$311

Payment records

By payment type

Food and Beverage$311

Top paying entities

Food and Beverage$311

REFERRAL NETWORK

Where Robert Clark'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). 72 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BOONE, A	218	539
John Andy Nephrology · Meridian, MS	177	474
RCG MISSISSIPPI, INC.	163	665
COWART, MARY	113	274
RCG MISSISSIPPI, INC.	107	345
Neville Wichman Diagnostic Radiology · Jackson, MS	96	235
Lauderdale County Ems District Ambulance Service Provider · Meridian, MS	84	487
Frederick Duggan Pulmonary Disease · Meridian, MS	65	181
Richmond Alexander Pulmonary Disease · Meridian, MS	52	121
Laboratory Corporation Of America Holdings Clinical Laboratory · Birmingham, AL	47	118
James Cady Emergency Medicine · Meridian, MS	44	89
James Matthews Iii Family Practice · Meridian, MS	43	127

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