Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN K CORLESS MD
NPI 1962408443
Specialist in Charleston, SC

Q: What is John Corless's NPI number?

The NPI number for John Corless is 1962408443. It was assigned to this individual provider in the NPPES registry on June 21, 2005.

Q: What is John Corless's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for John Corless was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 21, 2005PECOS Enrolled

1962 CHARLIE HALL BLVD, CHARLESTON, SC 29414(843) 722-8000(843) 723-7850 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. John K Corless Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN K CORLESS MD (NPI 1962408443) is an individual specialist in Charleston, South Carolina, licensed in South Carolina (8734) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Musc Medical Center, and is a graduate of Other (1977).

NPPES Registry Identity

NPI1962408443

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. JOHN K CORLESSCredential: MD

Location Address1962 CHARLIE HALL BLVDCharleston, SC 29414-5837

Mailing Address1962 Charlie Hall BlvdCharleston, SC 29414-5837 · (843) 722-8000 · Fax (843) 723-7850

Phone(843) 722-8000

Fax(843) 723-7850

Sole ProprietorNo

Medical School CMSOtherGraduated 1977

Enumeration DateJune 21, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1962408443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in SC · 8734

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

1962 CHARLIE HALL BLVD, Charleston, SC 29414

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Other Identifiers 1

Medicaid87346SC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John K Corless Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3274424437

PECOS Enrollment IDI20101130000747

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

30 services30 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

15 services15 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Musc Medical Center

Acute Care Hospitals · Charleston, SC

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number420004

Location169 Ashley AveCharleston, SC 29425 · Charleston County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JAMES M RAVENEL MD

Specialist