Gregory J. Fleming, M.D.
Specialist · Morristown, NJ
Gregory J. Fleming, M.D. is a specialist with a practice address in Morristown, New Jersey, and NPI 1255372165, issued on Jun 10, 2006. Check the license (New Jersey 51070, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Fleming
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 51070 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 26 Madison Ave, Morristown, NJ 07960
- Phone
- (973) 267-1851
- Enumerated
- Jun 10, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (973) 267-0024
- Entity
- Type 1 · individual
Also registered at 26 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joel CorteseProfessional Counselor1538685466
- Rachel Couillard, LPC, ATR-BCProfessional Counselor1548648769
- Thomas Fisher, MA, LPCProfessional Counselor1528311602
Verify Gregory J. Fleming in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 51070Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average specialist in 2024
29 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
31 specialist records list a practice address in Morristown
They are 31 of the 2,942 NPPES records with a practice address in Morristown, and 1,636 specialist records in New Jersey.
All 31 in Morristown → All 1,636 in New Jersey → Every provider in Morristown →
Other specialist records in New Jersey
- Lisa AbateHainesport, NJ1316180755
- Ziad Abbud, MDNeptune, NJ1740373489
- Aliyah Abdullah-GriffinCarteret, NJ1538519962
- Vanjelo Abellar, RPTCarteret, NJ1962595629
- Hossein Abessi, M.D.Wayne, NJ1841353794
- Marc Abo, M.D.Phillipsburg, NJ1003877267
- Ronald Aboody, MDPassaic, NJ1235109976
- Ahmed Abou-Taleb, MDBelleville, NJ1962432799
- Abdelhamid Abourya, PTFords, NJ1033353800
- Abraham Abraham, DPTFort Lee, NJ1144532813
Common questions
What is Gregory J. Fleming, M.D.'s NPI number?
Gregory J. Fleming, M.D.'s National Provider Identifier (NPI) is 1255372165, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Fleming, M.D. located?
The NPPES record lists a practice address at 26 Madison Ave, Morristown, NJ, 07960. Phone: (973) 267-1851. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Fleming, M.D.'s license?
NPPES lists New Jersey license number 51070, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory J. Fleming, M.D. prescribe under Medicare Part D?
In 2024, Gregory J. Fleming, M.D. had 29 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.