Dr. Gregory Alan Nelson, MD
- Medicare services, 2024
- 142
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 3,642
- Industry payments
- $62
- Affiliated sites
- 2
- Practice address
- 3400 Civic Center Blvd, Philadelphia, PA 19104
- Practice phone
- Call (215) 456-6611
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jefferson Einstein Hospital
Philadelphia, Pennsylvania
Find Dr. Nelson's professional email, personal email and mobile number
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Dr. Gregory Alan Nelson is an internist in Philadelphia, Pennsylvania
Dr. Nelson practices at Jefferson Einstein Hospital in Philadelphia, Pennsylvania.
Dr. Nelson's NPI, 1730107970, was assigned on July 17, 2006. Dr. Nelson graduated from Boston University School of Medicine in 1978. Dr. Nelson holds Pennsylvania license MD024997E.
- NPI
- 1730107970NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022022052
- NPI enumeration date
- July 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 456-6611
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Alan Nelson practices at Jefferson Einstein Hospital in Philadelphia, Pennsylvania
Dr. Nelson's primary practice is Jefferson Einstein Hospital, at 3400 Civic Center Blvd, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 456-6611.
- Jefferson Einstein Hospital3400 Civic Center Blvd, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 456-6611
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Alan Nelson is affiliated with 3 sites of care
Dr. Nelson's primary practice is Jefferson Einstein Hospital in Philadelphia, Pennsylvania. Dmand AI also links Dr. Nelson to 2 physician offices, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Alan Nelson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nelson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Einstein Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Alan Nelson is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Nelson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nelson is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Nelson
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory Alan Nelson billed Medicare for 142 services in 2024
CMS data shows 142 Medicare services from Dr. Nelson across 1 procedure code in 2024, all of them office visits, for 27 Medicare patients. Medicare paid $9,525 for them. Every service was in an office.
Dr. Nelson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2102024: 14232%
Dr. Nelson compared with the Pennsylvania median for internists, 2024
- Dr. Nelson
- Pennsylvania median
- Medicare services
- 142vs 41766% below
- Medicare patients
- 27vs 18585% below
- Part D claims
- 3,364vs 22415.0 times
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Nelson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Alan Nelson treated 27 Medicare patients in 2024, average age 62
CMS counts 27 Medicare patients who saw Dr. Nelson in 2024. The largest group is under 65, with 16 patients. 74% of them have high blood pressure, and 56% have high cholesterol. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nelson's median patient age at 51, with 40% women.
Dr. Nelson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nelson's Medicare patients by sex, 2024
- Women1556%
- Men1244%
Chronic conditions among Dr. Nelson's Medicare patients, 2024
- High blood pressure74%
- High cholesterol56%
- Diabetes44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nelson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women40%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Alan Nelson wrote 3,642 Medicare Part D claims in 2024
In 2024, Dr. Nelson wrote 3,642 Medicare Part D claims for 140 patients. 94% of them were for generic drugs. CMS names the drug for 3,364 of them, across 65 drugs with 11 or more claims each, at $127,973 in total drug cost. In 2023, CMS named 3,138 claims across 66 drugs.
Dr. Nelson's Part D claims by kind of drug, 2024
- Generic3,426 claims94%
- Brand-name and other216 claims6%
Dr. Nelson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nelson's Part D claims, 2024
- Opioids15%548 of 3,642 claims
- Antibiotics2%75 of 3,642 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,1382024: 3,3647%
Drugs named by CMS: 65 in 2024, 66 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gregory Alan Nelson takes part in Medicare
Dr. Nelson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory Alan Nelson received $62 in industry payments from 2016 to 2025
CMS Open Payments shows 4 general payments to Dr. Nelson from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Zimmer Biomet Holdings, Inc. paid the most, $20.
General payments to Dr. Nelson by program year, 2016 to 2025
Companies that paid Dr. Nelson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Alan Nelson graduated from Boston University School of Medicine
Dr. Nelson graduated from Boston University School of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Alan Nelson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory Alan Nelson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory Alan Nelson's NPI number?
Dr. Gregory Alan Nelson's NPI number is 1730107970. It was assigned on July 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Alan Nelson?
Dr. Gregory Alan Nelson is an internist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gregory Alan Nelson practice?
Dr. Nelson practices at 3400 Civic Center Blvd, Philadelphia, PA 19104. Dr. Nelson's primary practice is Jefferson Einstein Hospital in Philadelphia, Pennsylvania. Dmand AI also links Dr. Nelson to 2 physician offices.
What is Dr. Gregory Alan Nelson's office phone number?
The practice phone on file for Dr. Nelson is (215) 456-6611.
What is Dr. Gregory Alan Nelson's medical license number?
Dr. Nelson holds Pennsylvania license MD024997E.
Does Dr. Gregory Alan Nelson accept Medicare?
Yes. CMS data shows Dr. Nelson billed Medicare for 142 services in 2024, and Dr. Nelson accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Alan Nelson see?
CMS counts 27 Medicare patients who saw Dr. Nelson in 2024, with an average age of 62.
What services does Dr. Gregory Alan Nelson bill to Medicare?
In 2024, Dr. Nelson's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Gregory Alan Nelson go to medical school?
Dr. Nelson graduated from Boston University School of Medicine in 1978.
What drugs does Dr. Gregory Alan Nelson prescribe most?
In 2024 Medicare Part D data, Dr. Nelson's most prescribed drugs by claims were Oxycodone HCl, Gabapentin and Meloxicam.
Has Dr. Gregory Alan Nelson received payments from drug or device companies?
CMS Open Payments shows $62 in general payments to Dr. Nelson from 4 companies from 2016 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Gregory Alan Nelson been practicing?
Dr. Nelson graduated from medical school in 1978, 48 years ago.
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