Individual provider Active NPI

Austin Chandler Nicholson, M.D.

  • Infectious Disease Physician
  • Marietta, GA
National Provider Identifier
1134532450
Registry record updated Apr 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
97689 Issued in GA
Practice address
55 Whitcher St NE Ste 220
Marietta, GA 30060-1168
Phone
(770) 429-0083
Fax
(770) 425-0137
NPI assigned
Jun 4, 2014
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 11, 2025

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 25204 MS
Internal Medicine Physician 207R00000X MD60948644 WA
Hospitalist Physician 208M00000X MD60948644 WA
Hospitalist Physician 208M00000X 97689 GA
Infectious Disease Physician 207RI0200X 97689 GA Primary

Addresses

Primary practice location

55 Whitcher St NE Ste 220
Marietta, GA 30060-1168

Mailing address

55 Whitcher St NE Ste 220
Marietta, GA 30060-1168
Phone (770) 429-0083

Other practice location 1

2500 N State St
Jackson, MS 39216-4500
Phone (601) 984-1000

Other practice location 2

2500 N State St
Jackson, MS 39216-4500
Phone (601) 984-1000

Other practice location 3

400 S 43rd St
Renton, WA 98055
Phone (425) 228-3440 ext. 4322

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address anicholson534887@directwellstar.org Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WA, GA2 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

Enrollment IDStateProvider typePAC IDDetails
I20190604000387 WA Practitioner - HospitalistPractitioner - Internal Medicine 9638443567 Reassigns benefits to 1 organization
I20231106001867 GA Practitioner - Infectious Disease 9638443567 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Infectious Disease
Education
University of Mississippi School of Medicine, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Wellstar Medical Group LLCGroup PAC ID 6709065402, 3,059 clinicians

Practice addresses (Care Compare)

2540 Windy Hill Rd
Marietta, GA 30067-8605
Phone (770) 644-1570

2540 Windy Hill Serd
Marietta, GA 30067-8605
Phone (770) 644-1274

2550 Windy Hill Rd SE
Suite 220
Marietta, GA 30067-8605
Phone (404) 321-9900

5150 Stilesboro N W Rd
Suite 220
Kennesaw, GA 30152-7742
Phone (770) 424-8222

55 Whitcher Nest
Suite 220
Marietta, GA 30060-1168
Phone (770) 429-0083

625 Church Nest
Marietta, GA 30060-1101
Phone (770) 422-2004

677 Church Nest
Marietta, GA 30060-1101

677 Church St NE
Suite 100P
Marietta, GA 30060-1101
Phone (470) 793-8585

Hospital & facility affiliations

  • Wellstar Kennestone Regional Medical Center Hospital, Marietta, GA, CCN 110035
  • Wellstar Cobb Medical Center Hospital, Austell, GA, CCN 110143

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
97689GAMDHospitalist Physician
MD60948644WAMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Wellstar Medical Group, LLC CurrentSince Nov 1, 2023 Accepting new patients
Wellstar Medical Group, LLC Current Accepting new patients
Valley Medical Group-Renton Internal Medicine CurrentSince Jun 1, 2019 Accepting new patients

Locations

5150 Stilesboro Rd NW
Ste 220
Kennesaw, GA 30152
Phone (770) 424-8222

55 Whitcher St NE
Ste 220
Marietta, GA 30060
Phone (770) 429-0083

16850 SE 272nd St
Ste 100
Covington, WA 98042
Phone (253) 395-1971

400 S 43rd St
Renton, WA 98055
Phone (425) 228-3450

3600 Lind Ave SW
Ste 100
Renton, WA 98057

Organizations & group practices 3

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1401840000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744329600000",
    "number": "1134532450",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 WHITCHER ST NE STE 220",
            "city": "MARIETTA",
            "state": "GA",
            "postal_code": "300601168",
            "telephone_number": "770-429-0083",
            "fax_number": "770-425-0137"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 WHITCHER ST NE STE 220",
            "city": "MARIETTA",
            "state": "GA",
            "postal_code": "300601168",
            "telephone_number": "770-429-0083",
            "fax_number": "770-425-0137"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2500 N State St",
            "address_purpose": "LOCATION",
            "city": "Jackson",
            "state": "MS",
            "postal_code": "392164500",
            "country_code": "US",
            "telephone_number": "601-984-1000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2500 N State St",
            "address_purpose": "LOCATION",
            "city": "Jackson",
            "state": "MS",
            "postal_code": "392164500",
            "country_code": "US",
            "telephone_number": "601-984-1000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "400 S 43rd St",
            "address_purpose": "LOCATION",
            "city": "Renton",
            "state": "WA",
            "postal_code": "98055",
            "country_code": "US",
            "telephone_number": "425-228-3440 x4322",
            "fax_number": "425-656-4214",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NICHOLSON",
        "first_name": "AUSTIN",
        "middle_name": "CHANDLER",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-06-04",
        "last_updated": "2025-04-11",
        "certification_date": "2025-04-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MS",
            "license": "25204",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD60948644",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WA",
            "license": "MD60948644",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "GA",
            "license": "97689",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "GA",
            "license": "97689",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "anicholson534887@directwellstar.org",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "55 Whitcher St NE Ste 220",
            "city": "Marietta",
            "state": "GA",
            "country_code": "US",
            "postal_code": "300601168",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Marietta, GA

Sources for this page

Verify at the official NPI Registry.