What is John Corless's specialty?

John Corless (NPI 1962408443) is a Medicare-billing provider whose primary specialty is Gastroenterology in Charleston, SC.

Where does John Corless practice?

John Corless practices in Charleston, SC, based on the location reported in the CMS Medicare provider datasets for NPI 1962408443.

How much does Medicare pay John Corless?

John Corless (NPI 1962408443) received approximately $11K in total Medicare Part B payments, serving 60 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1962408443

John CorlessMD

PRACTICECHARLESTON ENDOSCOPY CENTERSee all providers at this practice →

GastroenterologyCharleston, SCI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 205 Gastroenterology providers in SC — bottom quintile (cohort median 867).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

100.0%

Top prescribed drugs

Peg3350/Sod Sulf,bicarb,cl/Kcl37 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl21 claims

QUALITY · MIPS · 2024

Final MIPS score

79.0

Quality

62.4

Cost

72.7

Improvement activities

40.0

Promoting interop.

99.0

Payment adjustment

0.17%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$85

Payment records

By payment type

Food and Beverage$85

Top paying entities

Food and Beverage$85

REFERRAL NETWORK

Where John Corless'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). 47 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Charleston Endoscopy Center Ambulatory Surgical Center · Charleston, SC	247	317
Ap Laboratories Clinical Laboratory · North Charleston, SC	127	166
R Livingston Internal Medicine · Charleston, SC	101	206
Johnny Campbell Diagnostic Radiology · Charleston, SC	59	135
Matthew Brady Diagnostic Radiology · Charleston, SC	55	94
MEDICAL UNIVERSITY HOSPITAL AUTHORITY	54	105
SMITH, ROBERT	36	73
Charleston County Government Ambulance Service Provider · North Charleston, SC	35	53
PROCTOR, WILLIAM	33	74
TRIDENT MEDICAL CENTER LLC	32	58
BAGG, MICHAEL	29	46
Neven Hadzijahic Gastroenterology · Charleston, SC	29	49

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