Gary G. Leonhardt, M.D.
Addiction Medicine (Psychiatry & Neurology) Physician · Greenville, NC
Gary G. Leonhardt, M.D. is an addiction medicine (psychiatry & neurology) physician with a practice address in Greenville, North Carolina, and NPI 1538183942, issued on Jul 27, 2006. Check the license (North Carolina 39296, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gary G. Leonhardt
- Credential
- M.D.
- Primary taxonomy
- Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
- License number
- 39296 NC
Self-reported in NPPES; status is on the state search - Practice location
- 203 Government Cir, Greenville, NC 27834
- Phone
- (252) 413-1637
- Enumerated
- Jul 27, 2006
- Record last updated
- Jul 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (252) 317-0316
- Medicare enrollment
- Enrolled (PECOS I20100423000119); accepts Medicare assignment
- Medical or professional school
- Brody School Of Medicine At East Carolina University, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest addiction medicine (psychiatry & neurology) physician records → All 26 in North Carolina → Look up another NPI →
Also registered at 203 Government Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Genena BuckAddiction (Substance Use Disorder) Registered Nurse1710766613
- Johnny Williams, M.D.Addiction Medicine (Psychiatry & Neurology) Physician1972697746
Verify Gary G. Leonhardt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 39296Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average addiction medicine (psychiatry & neurology) physician in 2024
2,427 Medicare Part D claims for 307 beneficiaries, against an average of 870 among the 264 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 34 claims were for opioids.
Most prescribed
- Clonazepam143 claims
- Trazodone Hcl134 claims
- Aripiprazole114 claims
- Duloxetine Hcl93 claims
- Risperidone92 claims
- Fluoxetine Hcl78 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.
Industry payments in 2024: $61,502.69
87 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Almatica Pharma LLC. The 142 providers of this specialty with any payment received $4,513.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- New Dawn Psychiatric Services PLLCGoldsboro, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary G. Leonhardt among 26 addiction medicine (psychiatry & neurology) physician records in North Carolina
Gary G. Leonhardt, M.D. is one of 26 addiction medicine (psychiatry & neurology) physician records with a practice address in North Carolina. 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated1989 · median 1986 among the 11 with a school on file
- Record last updated2015 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084A0401X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Medicine (Psychiatry & Neurology) Physician providers in North Carolina
There are 26 addiction medicine (psychiatry & neurology) physician records in North Carolina.
All 26 in North Carolina → Every provider in Greenville → Addiction Medicine (Psychiatry & Neurology) Physician nationwide →
The 8 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Sevdalina Dabova-Missova, MDGreenville, NC 278341104831072
- David Ryan, M.D.Greenville, NC 278341770784522
- Johnny Williams, M.D.Greenville, NC 278341972697746
- Dean Drosnes, M.D.Raleigh, NC 276091821327420
- Robyn Jordan, MDRaleigh, NC 276071336409317
- Emily Rayes-Prince, M.D.Monroe, NC 281101487683454
- Hien Nguyen, M.D.Apex, NC 275231124446430
- George Bartels, M.D.Cary, NC 275181841480100
Common questions
What is Gary G. Leonhardt, M.D.'s NPI number?
Gary G. Leonhardt, M.D.'s National Provider Identifier (NPI) is 1538183942, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary G. Leonhardt, M.D. located?
The NPPES record lists a practice address at 203 Government Cir, Greenville, NC, 27834. Phone: (252) 413-1637. Providers update this record themselves, so call before visiting.
How can I verify Gary G. Leonhardt, M.D.'s license?
NPPES lists North Carolina license number 39296, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gary G. Leonhardt, M.D. prescribe under Medicare Part D?
In 2024, Gary G. Leonhardt, M.D. had 2,427 Medicare Part D claims for 307 beneficiaries; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. 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.