Individual provider Active NPI

Sandra Lynn Gregory, MD

  • Radiation Oncology Physician
  • Atlanta, GA
National Provider Identifier
1376503128
Registry record updated Jun 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
057368 Issued in GA
Practice address
1800 Howell Mill Rd NW Ste LL10
Atlanta, GA 30318-2593
Phone
(404) 425-7900
NPI assigned
Mar 24, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 10, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 13630-320 WI
Radiation Oncology Physician 2085R0001X 057368 GA Primary

Addresses

Primary practice location

1800 Howell Mill Rd NW Ste LL10
Atlanta, GA 30318-2593

Mailing address

3330 Preston Ridge Rd
Suite 300
Alpharetta, GA 30005-4508
Phone (770) 350-0126

Other practice location 1

3301 Broadway St
Quincy, IL 62301-3713
Phone (217) 222-6550

Other practice location 2

3330 Preston Ridge Rd Ste 100
Alpharetta, GA 30005-4509
Phone (770) 255-7500

Other identifiers 1

IdentifierTypeStateIssuer
314129659CMedicaidGA

Other names 1

  • Dr. Sandra Lynn Winer Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in GA, WI, IL3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20060410000013 GA Practitioner - Radiation Oncology 3476562133 Reassigns benefits to 3 organizations
I20250728001448 WI Practitioner - Radiation Oncology 3476562133 Reassigns benefits to 3 organizations
I20260209001142 IL Practitioner - Radiation Oncology 3476562133 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Other, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians
Quincy Physicians and Surgeons Clinic, PLLCGroup PAC ID 0749192375, 231 clinicians
North Atlanta Professional Services LLCGroup PAC ID 0840291944, 423 clinicians

Practice addresses (Care Compare)

1221 Whipple St
Eau Claire, WI 54703-5270
Phone (715) 838-3311

3301 Broadway St
Quincy, IL 62301-3713
Phone (217) 277-3500

3330 Preston Ridge Rd
Suite 100
Alpharetta, GA 30005-4509
Phone (770) 255-7500

700 W Ave S
La Crosse, WI 54601-8806
Phone (608) 785-0940

800 W Ave S
La Crosse, WI 54601-8806
Phone (608) 785-0940

Hospital & facility affiliations

  • Northside Hospital Hospital, Atlanta, GA, CCN 110161

Merit-based Incentive Payment System (MIPS)

Final score
98.79 of 100Reported as group
Quality
98.74
Improvement activities
40
Cost
83.11

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
057368GAMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
North Atlanta Professional Services LLC Radiation Oncology CurrentSince Mar 2, 2017 Accepting new patients
Mayo Clinic CurrentSince Jul 15, 2025 Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. Current Accepting new patients
American Professional Associates, LLC CurrentSince Jul 1, 2012 Accepting new patients
Quincy Physicians & Surgeons Clinic, PLLC CurrentSince Jan 21, 2026 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Jul 18, 2025 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic CurrentSince Jul 15, 2025 Accepting new patients
American Professional Associates LLC Radiation Oncology CurrentSince Jul 1, 2012 Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Jul 18, 2025 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Jul 18, 2025 Accepting new patients
Quincy Physicians & Surgeons Clinic, PLLC CurrentSince Jan 21, 2026 Accepting new patients
Radiotherapy Clinics of Georgia,LLC Past Accepting new patients
American Professional Associates LLC Radiation Oncology Past Accepting new patients
Henry Radiation Oncology Center, LLC Radiation Oncology PastSince Jul 1, 2010 Accepting new patients
Frank a Critz,MD Past Accepting new patients
Northside Hospital, Inc. Past Accepting new patients
Mid-South Imaging & Therapeutics, P.a. Past Accepting new patients

Locations (25 of 33)

3330 Preston Ridge Rd
Ste 300
Alpharetta, GA 30005
Phone (770) 350-0126

3330 Preston Ridge Rd
Ste 100
Alpharetta, GA 30005
Phone (770) 255-7500

3400 Old Milton Pkwy
Ste B
Alpharetta, GA 30005
Phone (770) 442-1413

1110 W Peachtree St NW
Ste 100
Atlanta, GA 30309
Phone (404) 575-2050

791 Oak St
Ste 100
Atlanta, GA 30354

308 Deep South Farm Rd
Blairsville, GA 30512
Phone (678) 493-2527

460 Northside Cherokee Blvd
Ste T10
Canton, GA 30115
Phone (770) 479-1761

1293 Wellbrook Cir NE
Conyers, GA 30012
Phone (770) 682-2099

1293 Wellbrook Cir NE
Ste 100
Conyers, GA 30012

7174 Wheat St NE
Covington, GA 30014
Phone (678) 515-5963

7174 Wheat St NE
Ste 100
Covington, GA 30014

1100 Northside Forsyth Dr
Ste 140
Cumming, GA 30041
Phone (720) 382-1012

2349 Lawrenceville Hwy
Ste 100
Decatur, GA 30033

2349 Lawrenceville Hwy
Decatur, GA 30033
Phone (404) 320-1550

1136 Cleveland Ave
Ste 119
East Point, GA 30344
Phone (404) 305-4580

1000 Cowles Clinic Way
Ste W-100
Greensboro, GA 30642
Phone 7065435858 ext. 3202

791 Oak St
Hapeville, GA 30354
Phone (404) 601-2000

214 Perry Hwy
Hawkinsville, GA 31036
Phone (478) 783-4022

311 Philip Blvd
Lawrenceville, GA 30046
Phone (770) 945-3000

698 Duluth Hwy
Ste 100
Lawrenceville, GA 30046
Phone (770) 822-0788

311 Philip Blvd
Ste 100
Lawrenceville, GA 30046

308 Coliseum Dr
Ste 100
Macon, GA 31217
Phone (478) 742-2278

1000 Johnson Fy Rd NE
Sandy Springs, GA 30342
Phone (404) 851-1000

1000 Johnson Ferry Rd
Sandy Springs, GA 30342
Phone (404) 851-8737

1770 Presidential Cir
Ste 100
Snellville, GA 30078

Interoperability endpoints

  • Direct secure messaging: sgregory2548314@ehrdirect.mayoclinicmsg.org

Organizations & group practices 20

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.

View all 20

Hospital & facility affiliations 1

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": "1143158400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1376503128",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3330 PRESTON RIDGE RD",
            "address_2": "SUITE 300",
            "city": "ALPHARETTA",
            "state": "GA",
            "postal_code": "300054508",
            "telephone_number": "770-350-0126",
            "fax_number": "770-350-6637"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1800 HOWELL MILL RD NW STE LL10",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303182593",
            "telephone_number": "404-425-7900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3301 Broadway St",
            "address_purpose": "LOCATION",
            "city": "Quincy",
            "state": "IL",
            "postal_code": "623013713",
            "country_code": "US",
            "telephone_number": "217-222-6550",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3330 Preston Ridge Rd Ste 100",
            "address_purpose": "LOCATION",
            "city": "Alpharetta",
            "state": "GA",
            "postal_code": "300054509",
            "country_code": "US",
            "telephone_number": "770-255-7500",
            "fax_number": "770-255-7501",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREGORY",
        "first_name": "SANDRA",
        "middle_name": "LYNN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-03-24",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "WI",
            "license": "13630-320",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "GA",
            "license": "057368",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "314129659C",
            "state": "GA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "SANDRA",
            "last_name": "WINER",
            "middle_name": "LYNN",
            "prefix": "DR.",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Atlanta, GA

Sources for this page

Verify at the official NPI Registry.