Kalvin Ladelle Nathaniel

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

DO.000336 Issued in LA

Practice address

5665 New Northside Dr
320
Atlanta, GA 30328-5831

Phone

(770) 874-5400

NPI assigned

Apr 18, 2011

Last updated

Feb 12, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in LA, GA, AL, IL, MS5 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 5

Specialty

Emergency Medicine

Education

Nova Southeastern College of Osteo Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Emergency Services of Montgomery PCGroup PAC ID 6608028204, 61 clinicians

Walker Lake Emergency Group PCGroup PAC ID 0840531919, 31 clinicians

Georgia Emergency Department Services, P.C.Group PAC ID 5597751032, 76 clinicians

Integritas Emergency Physician Services LLCGroup PAC ID 7113167446, 41 clinicians

Paragon Contracting Services LLCGroup PAC ID 3971417825, 404 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Morgan Medical Center Hospital, Madison, GA, CCN 111304
• Marshall Browning Hospital Hospital, Du Quoin, IL, CCN 141331
• Shelby Baptist Medical Center Hospital, Alabaster, AL, CCN 010016
• Franklin Hospital Hospital, Benton, IL, CCN 141321
• Piedmont Rockdale Hospital Hospital, Conyers, GA, CCN 110091

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations (25 of 42)

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/14272/brand/70/csg/1/fhir/r4
• Direct secure messaging: knathaniel2018552@direct.trinity-health.org

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

• Georgia Emergency Department Services, P.C.

  • Emergency Medicine Physician
  • Gainesville, GA
  • NPI 1508886912
  Medicare reassignment Care Compare group NPD
• Walker Lake Emergency Group, PC

  • Emergency Medicine Physician
  • Conyers, GA
  • NPI 1437629342
  Medicare reassignment Care Compare group NPD
• Emergency Services of Montgomery PC

  • Emergency Medicine Physician
  • Prattville, AL
  • NPI 1528310323
  Medicare reassignment Care Compare group NPD
• Integritas Emergency Physician Services, LLC

  • Emergency Medicine Physician
  • Carbondale, IL
  • NPI 1790128817
  Medicare reassignment Care Compare group NPD
• Paragon Contracting Services LLC

  • Emergency Medicine Physician
  • Birmingham, AL
  • NPI 1225071459
  Medicare reassignment Care Compare group NPD
• Athens Clarke Medical Enterprises LLC

  • Emergency Medicine Physician
  • Athens, GA
  • NPI 1295370542
  Medicare reassignment NPD
• Cep America LLC

  dba Vituity

  • Emergency Medicine Physician
  • Lithonia, GA
  • NPI 1124073721
  Medicare reassignment NPD
• Georgia Emergency Group, LLC

  • Emergency Medicine Physician
  • Griffin, GA
  • NPI 1952746638
  Medicare reassignment NPD
• Gwinnett Emergency Specialists Observation Services, LLC

  • Emergency Medicine Physician
  • Lawrenceville, GA
  • NPI 1720373129
  Medicare reassignment NPD
• Gwinnett Emergency Specialists, LLC

  • Emergency Medicine Physician
  • Lawrenceville, GA
  • NPI 1437346467
  Medicare reassignment NPD
• Madison Emergency Group, PC

  • Emergency Medicine Physician
  • Madison, GA
  • NPI 1770193419
  Medicare reassignment NPD
• Montgomery Emergency Group, LLC

  • Emergency Medicine Physician
  • Vidalia, GA
  • NPI 1861773764
  Medicare reassignment NPD

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

• Morgan County Georgia Hospital Authority

  dba Morgan Medical Center

  • Family Medicine Physician
  • Madison, GA
  • NPI 1083080105

  Hospital

  Care Compare affiliation
• Morgan County Georgia Hospital Authority

  dba Morgan Medical Center

  • Critical Access Hospital
  • Madison, GA
  • NPI 1205843174
  Care Compare affiliation
• Piedmont Rockdale Hospital Inc.

  • General Acute Care Hospital
  • Conyers, GA
  • NPI 1306355680
  Care Compare affiliation
• BBH SBMC, LLC

  dba Baptist Health Shelby Hospital

  • General Acute Care Hospital
  • Alabaster, AL
  • NPI 1811341167
  Care Compare affiliation
• Franklin Hospital District

  • Critical Access Hospital
  • Benton, IL
  • NPI 1699778951
  Care Compare affiliation
• Marshall Browning Hospital Association

  • Critical Access Hospital
  • Du Quoin, IL
  • NPI 1821099441
  Care Compare affiliation

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

{
    "created_epoch": "1303084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1740570183",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5665 NEW NORTHSIDE DR",
            "address_2": "320",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303285831",
            "telephone_number": "770-874-5400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5665 NEW NORTHSIDE DR",
            "address_2": "320",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303285831",
            "telephone_number": "770-874-5400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NATHANIEL",
        "first_name": "KALVIN",
        "middle_name": "LADELLE",
        "name_prefix": "Dr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-04-18",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "AL",
            "license": "DO.2167",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "GA",
            "license": "72290",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "LA",
            "license": "DO.000336",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nathan Segall, M.D., P.C.
• Cecelia Nathan, PHARM D
• Lawrence Nathan, M.D.
• Meghana R Nathan, CCC-SLP
• Avantika Rajesh Nathani, MD
• Nation Care Inc Ga
• Brianna Nation, CTRS
• Rebekah Nation
• Susan Wofford Nation, LCSW
• National Center for Community Solutions LLC

• Emergency Medicine Physician in Atlanta, GA
• Providers in Atlanta, GA by specialty
• Emergency Medicine Physician in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 12, 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.