Dr. Sandra Lynn Gregory, MD

  • Atlanta, GA
  • Radiation oncologist
NPI1376503128PAC ID3476562133
Medicare services, 2024
652
Medicare patients, 2024
49
Part D claims, 2024
23
MIPS score, 2024
99
Hospital affiliations
2
Practice address
1000 Johnson Ferry Road, NE, Atlanta, GA 30342
Practice phone
Call (404) 851-8000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Northside Hospital Atlanta

Hospital · Atlanta, Georgia

See all 12 affiliations

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Dr. Sandra Lynn Gregory is a radiation oncologist in Atlanta, Georgia

Dr. Gregory practices at Northside Hospital Atlanta in Atlanta, Georgia, part of Northside Hospital.

Dr. Gregory's NPI, 1376503128, was assigned on March 24, 2006. Dr. Gregory holds Georgia license 057368.

NPI and contact details
Medicare PAC ID
3476562133
NPI enumeration date
March 24, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(404) 851-8000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Sandra Lynn Gregory practices at Northside Hospital Atlanta in Atlanta, Georgia

Dr. Gregory's primary practice is Northside Hospital Atlanta, at 1000 Johnson Ferry Road, NE, Atlanta, GA 30342 in Fulton County. The practice phone is (404) 851-8000.

Source: Dmand AI Affiliation Data

Dr. Sandra Lynn Gregory is affiliated with 5 sites of care and 7 medical groups

Dr. Gregory's primary practice is Northside Hospital Atlanta in Atlanta, Georgia, part of Northside Hospital. Dr. Gregory is also affiliated with Mayo Clinic Health System in La Crosse. The medical group on file is Piedmont Physicians Obstetrics and Gynecology of Jasper. Dmand AI also links Dr. Gregory to 6 more medical groups, 2 group practices and clinics and 1 ambulatory surgery center, each named with a free account.

See all 12 affiliations for Dr. Gregory

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Sandra Lynn Gregory's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregory practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Northside Hospital AtlantaAvailable with a free account
+4 more sites and 6 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Sandra Lynn Gregory is one of 165 radiation oncologists in Georgia

Radiation oncology is Dr. Gregory's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Gregory is licensed in Georgia.

Specialties and state licenses

  • Radiation oncology, GeorgiaPrimaryLicense 057368 · taxonomy 2085R0001X

Radiation oncologists near Dr. Gregory

Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Sandra Lynn Gregory billed Medicare for 652 services in 2024

CMS data shows 652 Medicare services from Dr. Gregory across 5 procedure codes in 2024, for 49 Medicare patients. Medicare paid $32,092 for them. Every service was in an office.

Medicare services, 2024652
Medicare patients49
Paid by Medicare$32,092
Procedure codes5

Dr. Gregory's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 1,0252024: 65236%
Office and hospital visits
2023: 312024: 0100%

Dr. Gregory compared with the Georgia median for radiation oncologists, 2024

  • Dr. Gregory
  • Georgia median
Medicare services
652vs 1,32851% below
Medicare patients
49vs 15468% below
Part D claims
26vs 4441% below

Medians across 164 radiation oncologists in Georgia with Dmand AI profiles that report each measure.

Dr. Gregory's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Gregory

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gregory and other radiation oncologists in Georgia.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Sandra Lynn Gregory treated 49 Medicare patients in 2024, average age 76

CMS counts 49 Medicare patients who saw Dr. Gregory in 2024. The largest group is 75 to 84, with 21 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gregory's median patient age at 73, with 38% women.

Medicare patients, 202449
Average age76
Average risk score1.16

Dr. Gregory's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Gregory's Medicare patients by sex, 2024

  • Women1327%
  • Men3673%

Chronic conditions among Dr. Gregory's Medicare patients, 2024

  1. Cancer75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Arthritis33%
  5. Ischemic heart disease33%
  6. Diabetes29%

Share of Medicare patients with each condition. A patient can have several.

Dr. Gregory's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women38%
  • Men61%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Sandra Lynn Gregory wrote 23 Medicare Part D claims in 2024

In 2024, Dr. Gregory wrote 23 Medicare Part D claims for 14 patients. 78% of them were for generic drugs. They cover 1 drug, with $182 in total drug cost. In 2020, CMS named 18 claims across 1 drug.

Part D claims, 202423
Drugs named by CMS1
Total drug cost$182
Part D patients14

Dr. Gregory's Part D claims by kind of drug, 2024

  • Generic18 claims78%
  • Brand-name and other5 claims22%

Dr. Gregory's most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 182021: 2644%

Drugs named by CMS: 1 in 2021, 1 in 2020.

See all prescribing by Dr. Gregory

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Sandra Lynn Gregory scored 99 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Gregory for performance year 2024, reported as part of a group. Dr. Gregory accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Gregory's MIPS scores, performance year 2024

  • 99of 100Final score
  • 98.7of 100Quality
  • 40of 100Improvement Activities
  • 83of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Sandra Lynn Gregory received $230 in industry payments from 2017 to 2021

CMS Open Payments shows 12 general payments to Dr. Gregory from 8 drug and device companies from 2017 to 2021. Food and beverage make up the largest share, 100% of the total. Novocure Inc. paid the most, $66.

General payments to Dr. Gregory by program year, 2017 to 2021

Companies that paid Dr. Gregory the most, 2017 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Gregory

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Sandra Lynn Gregory's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Sandra Lynn Gregory

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Sandra Lynn Gregory's NPI number?

Dr. Sandra Lynn Gregory's NPI number is 1376503128. It was assigned on March 24, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Sandra Lynn Gregory?

Dr. Sandra Lynn Gregory is a radiation oncologist in Atlanta, Georgia. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Sandra Lynn Gregory practice?

Dr. Gregory practices at 1000 Johnson Ferry Road, NE, Atlanta, GA 30342. Dr. Gregory's primary practice is Northside Hospital Atlanta in Atlanta, Georgia, part of Northside Hospital. Dmand AI also links Dr. Gregory to 6 medical groups, 2 group practices and clinics and 1 ambulatory surgery center.

What is Dr. Sandra Lynn Gregory's office phone number?

The practice phone on file for Dr. Gregory is (404) 851-8000.

What is Dr. Sandra Lynn Gregory's medical license number?

Dr. Gregory holds Georgia license 057368.

Which hospitals is Dr. Sandra Lynn Gregory affiliated with?

Dr. Gregory practices at Northside Hospital Atlanta in Atlanta, Georgia. Dr. Gregory is also affiliated with Mayo Clinic Health System in La Crosse.

What medical group is Dr. Sandra Lynn Gregory part of?

Dr. Gregory is linked to Piedmont Physicians Obstetrics and Gynecology of Jasper. Dmand AI links Dr. Gregory to 6 more medical groups.

Does Dr. Sandra Lynn Gregory accept Medicare?

Yes. CMS data shows Dr. Gregory billed Medicare for 652 services in 2024, and Dr. Gregory accepts Medicare assignment.

What is Dr. Sandra Lynn Gregory's MIPS score?

Dr. Gregory's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.

How many Medicare patients does Dr. Sandra Lynn Gregory see?

CMS counts 49 Medicare patients who saw Dr. Gregory in 2024, with an average age of 76.

Show 4 more questionsShow fewer questions

What services does Dr. Sandra Lynn Gregory bill to Medicare?

In 2024, Dr. Gregory's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and radiation oncology (77300).

What drugs does Dr. Sandra Lynn Gregory prescribe most?

In 2021 Medicare Part D data, Dr. Gregory's most prescribed drugs by claims were Tamsulosin HCl.

Has Dr. Sandra Lynn Gregory received payments from drug or device companies?

CMS Open Payments shows $230 in general payments to Dr. Gregory from 8 companies from 2017 to 2021. The largest total came from Novocure Inc.

How long has Dr. Sandra Lynn Gregory been practicing?

Dr. Gregory graduated from medical school in 1990, 36 years ago.

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