Elwyn C Clark, DO

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

247501-1 Issued in NY

Practice address

979 E 3Rd St Ste C735
Chattanooga, TN 37403-3310

Phone

(423) 778-9101

NPI assigned

Jun 23, 2008

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 3

Medicare fee-for-service enrollment

Enrolled in GA, TN2 enrollments

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 2

Specialty

Critical Care (Intensivists)Also: Emergency Medicine

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Erlanger HealthGroup PAC ID 1153780226, 504 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Erlanger Medical Center Hospital, Chattanooga, TN, CCN 440104

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

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.

• Erlanger Health

  • Internal Medicine Physician
  • Chattanooga, TN
  • NPI 1477256303
  Medicare reassignment Care Compare group NPD
• Chattanooga Hamilton County Hospital Authority

  • Internal Medicine Physician
  • Chattanooga, TN
  • NPI 1154751931
  Medicare reassignment NPD
• Emergency Coverage, LLC

  • Family Medicine Physician
  • Newport, TN
  • NPI 1427005008

  Emergency Medicine, GA

  Medicare reassignment NPD
• Hamilton Medical Center, Inc.

  • General Acute Care Hospital
  • Dalton, GA
  • NPI 1528056066
  Medicare reassignment NPD
• Chattanooga Hamilton County Hospital Authority

  • Medicare Defined Swing Bed Hospital Unit
  • Pikeville, TN
  • NPI 1073622007
  NPD
• Erlanger Health

  • Durable Medical Equipment & Medical Supplies
  • Chattanooga, TN
  • NPI 1740073329
  NPD
• Hamilton Physician Group Inc

  • Cardiovascular Disease Physician
  • Dalton, GA
  • NPI 1235455569
  NPD
• Pittsburgh Critical Care Associates, Inc

  • Critical Care Medicine (Internal Medicine) Physician
  • Altoona, PA
  • NPI 1497703680
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Erlanger Health

  • General Acute Care Hospital
  • Chattanooga, TN
  • NPI 1861194086
  Care Compare affiliation

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

{
    "created_epoch": "1214179200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783296000000",
    "number": "1083875900",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1629 SAWYER SPRING TRL",
            "city": "SIGNAL MOUNTAIN",
            "state": "TN",
            "postal_code": "373771632",
            "telephone_number": "917-685-1189"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "979 E 3RD ST STE C735",
            "city": "CHATTANOOGA",
            "state": "TN",
            "postal_code": "374033310",
            "telephone_number": "423-778-9101"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CLARK",
        "first_name": "ELWYN",
        "middle_name": "C",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-06-23",
        "last_updated": "2026-07-06",
        "certification_date": "2026-07-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NY",
            "license": "247501-1",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "247501",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "3966",
            "state": "TN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "81095",
            "state": "GA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "247501",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Charlotte Anne Clark, SLP-CCC
• Christine Clark
• Connie Clark
• D'Vondria Clark
• Danielle S Clark, RN
• Emily Clark, LAC, DACCHM
• Jennifer Marie Clark
• Jessica Marie Bradford Clark, MS
• Joan Carol Clark, CCC-SLP
• Kristin Clark, SLP-CCC

• Critical Care Medicine (Internal Medicine) Physician in Chattanooga, TN
• Providers in Chattanooga, TN by specialty
• Critical Care Medicine (Internal Medicine) Physician in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 6, 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.