Thomas John Demarco, MD
Gastroenterology Physician · Smyrna, GA
Thomas John Demarco, MD is a gastroenterology physician with a practice address in Smyrna, Georgia, and NPI 1093825846, issued on Aug 30, 2006. Check the license (Georgia 32718, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas John Demarco
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 32718 GA
Self-reported in NPPES; status is on the state search - Practice location
- 3969 S Cobb Dr SE Ste 202, Smyrna, GA 30080
- Phone
- (770) 432-5326
- Enumerated
- Aug 30, 2006
- Record last updated
- Apr 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (770) 432-5740
- Medicaid ID
- 00422518A GA
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 530 in Georgia → Look up another NPI →
Verify Thomas John Demarco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 32718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.8 times the Medicare Part D claims of the average gastroenterology physician in 2024
3,900 Medicare Part D claims for 288 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 191 claims were for opioids.
Most prescribed
- Levothyroxine Sodium196 claims
- Atorvastatin Calcium149 claims
- Losartan Potassium128 claims
- Amlodipine Besylate115 claims
- Tamsulosin Hcl106 claims
- Metoprolol Succinate88 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Thomas John Demarco among 530 gastroenterology physician records in Georgia
Thomas John Demarco, MD is one of 530 gastroenterology physician records with a practice address in Georgia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 21% of them.
- NPI issued2006 · 21% of these records are older, 45% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Georgia
There are 530 gastroenterology physician records in Georgia.
All 530 in Georgia → Every provider in Smyrna → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Francisco Cardenas, MDSmyrna, GA 300801669445938
- Shani Clay, M.D.Smyrna, GA 300801952628349
- Subodh Lal, MDSmyrna, GA 300801699748988
- Priti Pandya, MDSmyrna, GA 300801316910615
- Ryan Ford, M.D.Scottdale, GA 300791235166612
- Olaitan Adeniji, MDSnellville, GA 300781255321089
- Angel Morales-Santiago, MDSnellville, GA 300781285079723
- Sanjay Parikh, MDSnellville, GA 300781679558241
Common questions
What is Thomas John Demarco, MD's NPI number?
Thomas John Demarco, MD's National Provider Identifier (NPI) is 1093825846, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas John Demarco, MD located?
The NPPES record lists a practice address at 3969 S Cobb Dr SE Ste 202, Smyrna, GA, 30080. Phone: (770) 432-5326. Providers update this record themselves, so call before visiting.
How can I verify Thomas John Demarco, MD's license?
NPPES lists Georgia license number 32718, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas John Demarco, MD prescribe under Medicare Part D?
In 2024, Thomas John Demarco, MD had 3,900 Medicare Part D claims for 288 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.