John O. Gaston, M.D.
Psychiatry Physician · Marietta, GA
John O. Gaston, M.D. is a psychiatry physician with a practice address in Marietta, Georgia, and NPI 1184757940, issued on Mar 13, 2007. Check the license (Georgia 023050, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- John O. Gaston
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 023050 GA
Self-reported in NPPES; status is on the state search - Practice location
- 2550 Windy Hill RD SE, Marietta, GA 30067
- Phone
- (404) 756-1450
- Enumerated
- Mar 13, 2007
- Record last updated
- Oct 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20041020000682); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1977
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,291 in Georgia → Look up another NPI →
Also registered at 2550 Windy Hill RD SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John O. Gaston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 023050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average psychiatry physician in 2024
100 Medicare Part D claims for 12 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Alprazolam19 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.
Bills Medicare through one group practice
- Morehouse Healthcare, Inc.East Point, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John O. Gaston among 1,291 psychiatry physician records in Georgia
John O. Gaston, M.D. is one of 1,291 psychiatry physician records with a practice address in Georgia. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 44% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1977 · median 2002 among the 516 with a school on file
- Record last updated2018 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Georgia
There are 1,291 psychiatry physician records in Georgia.
All 1,291 in Georgia → Every provider in Marietta → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Iffat Bhuiyan, MDMarietta, GA 300671043590151
- Valdesha Dejean, M.D.Marietta, GA 300671356581144
- Robert Delpozo, M.D.Marietta, GA 300671043239171
- Kristy Jackson, M.D.Marietta, GA 300671043484645
- Rohit Khanna, M.D.Marietta, GA 300671225144140
- Elizabeth Licalzi, M.D.Marietta, GA 300671629210471
- Cliff Lin, M.D.Marietta, GA 300671689963282
- Manuel MartinezMarietta, GA 300671689630022
Common questions
What is John O. Gaston, M.D.'s NPI number?
John O. Gaston, M.D.'s National Provider Identifier (NPI) is 1184757940, issued on Mar 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John O. Gaston, M.D. located?
The NPPES record lists a practice address at 2550 Windy Hill RD SE, Marietta, GA, 30067. Phone: (404) 756-1450. Providers update this record themselves, so call before visiting.
How can I verify John O. Gaston, M.D.'s license?
NPPES lists Georgia license number 023050, 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 John O. Gaston, M.D. prescribe under Medicare Part D?
In 2024, John O. Gaston, M.D. had 100 Medicare Part D claims for 12 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.