Katharine Armstrong, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

105289 Issued in GA

Practice address

5353 Reynolds St Ste 200
Savannah, GA 31405-6087

Phone

(912) 819-5771

Fax

(912) 819-5772

NPI assigned

Jun 25, 2019

Last updated

Jan 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in GA

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

Surgical Oncology

Education

Medical College of Georgia School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

SJC Oncology Services - Georgia, LLCGroup PAC ID 8426086901, 26 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Candler Hospital Hospital, Savannah, GA, CCN 110024
• St Joseph's Hospital - Savannah Hospital, Savannah, GA, CCN 110043

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• SJC Oncology Services - Georgia, LLC

  • Radiation Oncology Physician
  • Savannah, GA
  • NPI 1710196589
  Medicare reassignment Care Compare group NPD

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

• Candler Hospital Incorporated

  • General Acute Care Hospital
  • Savannah, GA
  • NPI 1275527889
  Care Compare affiliation
• Saint Joseph's Hospital, Inc.

  • General Acute Care Hospital
  • Savannah, GA
  • NPI 1063406684
  Care Compare affiliation

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

{
    "created_epoch": "1561420800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768262400000",
    "number": "1922669555",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "ST. JOSEPH'S CANDLER MANAGED CARE DEPT - YVETTA P. LEE",
            "address_2": "836 E. 65TH STREET, SUITE 22",
            "city": "SAVANNAH",
            "state": "GA",
            "postal_code": "314054493",
            "telephone_number": "912-819-2146",
            "fax_number": "912-819-3320"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5353 REYNOLDS ST STE 200",
            "city": "SAVANNAH",
            "state": "GA",
            "postal_code": "314056087",
            "telephone_number": "912-819-5771",
            "fax_number": "912-819-5772"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "225 Candler Dr Ste 100",
            "address_purpose": "LOCATION",
            "city": "Savannah",
            "state": "GA",
            "postal_code": "314056093",
            "country_code": "US",
            "telephone_number": "912-352-1700",
            "fax_number": "912-354-8545",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5353 Reynolds St Ste 107",
            "address_purpose": "LOCATION",
            "city": "Savannah",
            "state": "GA",
            "postal_code": "314056089",
            "country_code": "US",
            "telephone_number": "912-819-7630",
            "fax_number": "912-819-5860",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ARMSTRONG",
        "first_name": "KATHARINE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-06-25",
        "last_updated": "2026-01-13",
        "certification_date": "2026-01-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "GA",
            "license": "105289",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alexandra Arintok
• Armin Inc (Miracle Ear)
• Austin Armstrong
• Brian Alexander Armstrong, PHARM.D.
• Cheryl Lynn Armstrong, MOT, OTR/L, CLT-LANA
• Richard Alan Arneson, O.D.
• Arnold F Negrin, MD
• Arnold Home Care Ventures LLC
• Akiyah Racqel Arnold, RN
• James D Arnold

• Surgery Physician in Savannah, GA
• Providers in Savannah, GA by specialty
• Surgery Physician in Georgia

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