Dr. Gregory John Thomas, MD
- Medicare services, 2024
- 76
- Medicare patients, 2024
- 70
- Part D claims, 2024
- 38
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 5353 Reynolds Street, Savannah, GA 31405
- Practice phone
- Call (912) 819-5290
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Gregory John Thomas is a general surgeon in Savannah, Georgia
Dr. Thomas practices at Candler Hospital in Savannah, Georgia, part of Sisters of Mercy.
Dr. Thomas' NPI, 1407349640, was assigned on June 12, 2018. Dr. Thomas holds Georgia license 100487.
- NPI
- 1407349640NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173878998
- NPI enumeration date
- June 12, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (912) 819-5290
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory John Thomas practices at Candler Hospital in Savannah, Georgia
Dr. Thomas' primary practice is Candler Hospital, at 5353 Reynolds Street, Savannah, GA 31405 in Chatham County. The practice phone is (912) 819-5290.
- Candler Hospital5353 Reynolds Street, Savannah, GA 31405 · Chatham CountyPhone(912) 819-5290
Source: Dmand AI Affiliation Data
Dr. Gregory John Thomas is affiliated with 4 sites of care and 2 medical groups
Dr. Thomas' primary practice is Candler Hospital in Savannah, Georgia, part of Sisters of Mercy. Dr. Thomas is also affiliated with Saint Joseph's Hospital. The medical group on file is Metro Surgical. Dmand AI also links Dr. Thomas to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory John Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Candler Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory John Thomas is one of 853 general surgeons in Georgia
Surgery is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Thomas is licensed in Georgia.
Specialties and state licenses
- Surgery, GeorgiaPrimary
General surgeons near Dr. Thomas
Counts of general surgeons 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. Gregory John Thomas billed Medicare for 76 services in 2024
CMS data shows 76 Medicare services from Dr. Thomas across 2 procedure codes in 2024, for 70 Medicare patients. Medicare paid $3,180 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Thomas compared with the Georgia median for general surgeons, 2024
- Dr. Thomas
- Georgia median
- Medicare services
- 76vs 15049% below
- Medicare patients
- 70vs 10936% below
- Part D claims
- 29vs 5446% below
Medians across 789 general surgeons in Georgia with Dmand AI profiles that report each measure.
Dr. Thomas' 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory John Thomas treated 70 Medicare patients in 2024, average age 74
CMS counts 70 Medicare patients who saw Dr. Thomas in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 60, with 54% women.
Dr. Thomas' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Thomas' Medicare patients by sex, 2024
- Women2637%
- Men4463%
Chronic conditions among Dr. Thomas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Ischemic heart disease37%
- Diabetes36%
- Chronic kidney disease34%
- Heart failure33%
- Anxiety31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory John Thomas wrote 38 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 38 Medicare Part D claims for 34 patients. 97% of them were for generic drugs. CMS names the drug for 29 of them, across 1 drug with 11 or more claims each, at $49 in total drug cost. In 2023, CMS named 44 claims across 2 drugs.
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic37 claims97%
- Brand-name and other1 claims3%
Dr. Thomas' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Thomas' Part D claims, 2024
- Opioids82%31 of 38 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 442024: 2934%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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. Gregory John Thomas ranks in the 68th percentile for removal of tissue in Medicare
Dr. Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of removal of tissue by Dr. Thomas, more than 68% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Thomas ranks in Medicare procedure volume
- Removal of tissue
- 68th percentile19 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 45th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Sources for Dr. Gregory John Thomas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory John Thomas
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. Gregory John Thomas' NPI number?
Dr. Gregory John Thomas' NPI number is 1407349640. It was assigned on June 12, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory John Thomas?
Dr. Gregory John Thomas is a general surgeon in Savannah, Georgia. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Gregory John Thomas practice?
Dr. Thomas practices at 5353 Reynolds Street, Savannah, GA 31405. Dr. Thomas' primary practice is Candler Hospital in Savannah, Georgia, part of Sisters of Mercy. Dmand AI also links Dr. Thomas to 2 group practices and clinics and 1 medical group.
What is Dr. Gregory John Thomas' office phone number?
The practice phone on file for Dr. Thomas is (912) 819-5290.
What is Dr. Gregory John Thomas' medical license number?
Dr. Thomas holds Georgia license 100487.
Which hospitals is Dr. Gregory John Thomas affiliated with?
Dr. Thomas practices at Candler Hospital in Savannah, Georgia. Dr. Thomas is also affiliated with Saint Joseph's Hospital.
What medical group is Dr. Gregory John Thomas part of?
Dr. Thomas is linked to Metro Surgical. Dmand AI links Dr. Thomas to 1 more medical group.
Does Dr. Gregory John Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 76 services in 2024, and Dr. Thomas accepts Medicare assignment.
How many Medicare patients does Dr. Gregory John Thomas see?
CMS counts 70 Medicare patients who saw Dr. Thomas in 2024, with an average age of 74.
What services does Dr. Gregory John Thomas bill to Medicare?
In 2024, Dr. Thomas' most billed Medicare services were hospital inpatient care (99231) and hospital inpatient care (99232).
What drugs does Dr. Gregory John Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Oxycodone HCl.
How long has Dr. Gregory John Thomas been practicing?
Dr. Thomas graduated from medical school in 2018, 8 years ago.
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