John K Corless, MD

Primary specialty

SpecialistTaxonomy code 174400000X

License

8734 Issued in SC

Practice address

1962 Charlie Hall Blvd
Charleston, SC 29414-5837

Phone

(843) 722-8000

Fax

(843) 723-7850

NPI assigned

Jun 21, 2005

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in SC

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

GastroenterologyAlso: Internal Medicine

Education

Other, 1977

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University Medical Associates of the Medical University of South CarolGroup PAC ID 6305758574, 1,634 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

79.02 of 100Reported as group

Quality

62.41

Promoting interoperability

99

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jcorless376455@direct.musc.edu

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• University Medical Associates of the Medical University of South Carol

  • Multi-Specialty Clinic/Center
  • Charleston, SC
  • NPI 1043241110
  Medicare reassignment Care Compare group NPD
• University Medical Associates of the Medical University of South Carol

  • Family Medicine Physician
  • Charleston, SC
  • NPI 1982678496
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1119312000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1962408443",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1962 CHARLIE HALL BLVD",
            "city": "CHARLESTON",
            "state": "SC",
            "postal_code": "294145837",
            "telephone_number": "843-722-8000",
            "fax_number": "843-723-7850"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1962 CHARLIE HALL BLVD",
            "city": "CHARLESTON",
            "state": "SC",
            "postal_code": "294145837",
            "telephone_number": "843-722-8000",
            "fax_number": "843-723-7850"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CORLESS",
        "first_name": "JOHN",
        "middle_name": "K",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-21",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "SC",
            "license": "8734",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "87346",
            "state": "SC"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• John W Cordray Jr., DMD
• Tracy Leigh Cordray, M.D.
• Core Counseling LLC
• Brooke Corey, CRNA
• Tessa Corio, PA
• Christine Patton Corley, APRN, CPNP-AC
• Carrie L Cormack, PNP
• Scott Cormier, L.AC.
• Elisabeth Marie Cornacchia, LPC
• Cornerstone Children'S Dentistry, P.a.

• Specialist in Charleston, SC
• Providers in Charleston, SC by specialty
• Specialist in South Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.