Gregory Alan Nelson, M.D.
Internal Medicine Physician · Philadelphia, PA
Gregory Alan Nelson, M.D. is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1730107970, issued on Jul 17, 2006. Check the license (Pennsylvania MD024997E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gregory Alan Nelson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD024997E PA
Self-reported in NPPES; status is on the state search - Practice location
- 6315-17 Stenton Avenue, Philadelphia, PA 19138
- Phone
- (215) 424-1475
- Enumerated
- Jul 17, 2006
- Record last updated
- Apr 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080221000497); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Verify Gregory Alan Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD024997ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average internal medicine physician in 2024
3,642 Medicare Part D claims for 140 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 548 claims were for opioids.
Most prescribed
- Oxycodone Hcl428 claims
- Gabapentin427 claims
- Meloxicam347 claims
- Cyclobenzaprine Hcl212 claims
- Atorvastatin Calcium103 claims
- Celecoxib102 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.
Gregory Alan Nelson among 7,300 internal medicine physician records in Pennsylvania
Gregory Alan Nelson, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1978 · median 2008 among the 4,208 with a school on file
- Record last updated2008 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Akilah Bates, M.D.Philadelphia, PA 191391578858353
- Jane Cannon, M.D.Philadelphia, PA 191391427095140
- Joniqua Ceasar, MDPhiladelphia, PA 191391376163147
- Kristin Gales, DOPhiladelphia, PA 191391336536374
- Cheryl Jackson, M.D.Philadelphia, PA 191391144262288
- Darryl Jackson, M.D.Philadelphia, PA 191391811041197
- Gelsey Rellosa, MDPhiladelphia, PA 191391497991079
- Mika Schwartz, MDPhiladelphia, PA 191391700405578
Common questions
What is Gregory Alan Nelson, M.D.'s NPI number?
Gregory Alan Nelson, M.D.'s National Provider Identifier (NPI) is 1730107970, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Alan Nelson, M.D. located?
The NPPES record lists a practice address at 6315-17 Stenton Avenue, Philadelphia, PA, 19138. Phone: (215) 424-1475. Providers update this record themselves, so call before visiting.
How can I verify Gregory Alan Nelson, M.D.'s license?
NPPES lists Pennsylvania license number MD024997E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Alan Nelson, M.D. prescribe under Medicare Part D?
In 2024, Gregory Alan Nelson, M.D. had 3,642 Medicare Part D claims for 140 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.