Primary practice
Helen F Graham Cancer Center & Research Institute
Newark, Delaware
Find Dr. Rubenstein's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Rubenstein practices at Helen F Graham Cancer Center & Research Institute in Newark, Delaware.
Dr. Rubenstein's NPI, 1467424044, was assigned on February 7, 2006. Dr. Rubenstein holds Indiana license 01068040A.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rubenstein's primary practice is Helen F Graham Cancer Center & Research Institute, at 200 Hygeia Dr, Newark, DE 19713 in New Castle County. The practice phone is (302) 623-4285.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rubenstein's primary practice is Helen F Graham Cancer Center & Research Institute in Newark, Delaware. Dr. Rubenstein is also affiliated with Christiana Hospital. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Rubenstein to 1 more hospital, 3 medical groups and 2 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rubenstein practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Helen F Graham Cancer Center & Research Institute | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Hematology and oncology is Dr. Rubenstein's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Rubenstein is licensed in Indiana.
Counts of hematologists and oncologists 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
CMS data shows 161 Medicare services from Dr. Rubenstein across 4 procedure codes in 2024, all of them office visits, for 79 Medicare patients. Medicare paid $14,489 for them.
Medians across 40 hematologists and oncologists in Delaware with Dmand AI profiles that report each measure.
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Rubenstein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rubenstein and other hematologists and oncologists in Delaware.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 79 Medicare patients who saw Dr. Rubenstein in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Rubenstein's median patient age at 69, with 57% women.
CMS leaves out age groups with fewer than 11 patients.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 69
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Rubenstein wrote 141 Medicare Part D claims for 43 patients. 82% of them were for generic drugs. CMS names the drug for 55 of them, across 3 drugs with 11 or more claims each, at $17,446 in total drug cost. In 2023, CMS named 131 claims across 6 drugs.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drugs named by CMS: 3 in 2024, 6 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
Dr. Rubenstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rubenstein as offering telehealth.
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dmand AI links Dr. Rubenstein to 11 clinical trials, 5 of them phase 3 studies. 8 are still active or recruiting. Conditions studied include Burkitt Lymphoma, Melanoma and Epstein-Barr Virus Infections. National Cancer Institute (NCI) sponsors the most, 6. Open Payments lists research payments to Dr. Rubenstein that name 1 trial.
Conditions in Dr. Rubenstein's trials
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 383 general payments to Dr. Rubenstein from 40 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 25% of the total. Alexion Pharmaceuticals, Inc. paid the most, $10,297. It also lists 2 research payments totaling $12,820 in 2016, naming 1 clinical trial.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
| 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
Dr. Stephen E. Rubenstein's NPI number is 1467424044. It was assigned on February 7, 2006, and it is active in the NPI Registry.
Dr. Stephen E. Rubenstein is a hematologist and oncologist in Newark, Delaware. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Dr. Rubenstein practices at 200 Hygeia Dr, Newark, DE 19713. Dr. Rubenstein's primary practice is Helen F Graham Cancer Center & Research Institute in Newark, Delaware. Dmand AI also links Dr. Rubenstein to 1 hospital, 3 medical groups and 2 group practices and clinics.
The practice phone on file for Dr. Rubenstein is (302) 623-4285.
Dr. Rubenstein holds Indiana license 01068040A.
Dr. Rubenstein is affiliated with Christiana Hospital. Dmand AI links Dr. Rubenstein to 1 more hospital.
Dr. Rubenstein is linked to MedStar Medical Group. Dmand AI links Dr. Rubenstein to 3 more medical groups.
Yes. CMS data shows Dr. Rubenstein billed Medicare for 161 services in 2024, and Dr. Rubenstein accepts Medicare assignment.
Yes. The CMS Doctors and Clinicians file lists Dr. Rubenstein as offering telehealth services.
CMS counts 79 Medicare patients who saw Dr. Rubenstein in 2024, with an average age of 75.
In 2024, Dr. Rubenstein's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and office visit, established patient (99213).
In 2024 Medicare Part D data, Dr. Rubenstein's most prescribed drugs by claims were Eliquis, Cyanocobalamin Injection and Prednisone.
CMS Open Payments shows $26,134 in general payments to Dr. Rubenstein from 40 companies from 2016 to 2025. The largest total came from Alexion Pharmaceuticals, Inc.
Dr. Rubenstein graduated from medical school in 2001, 25 years ago.
Dr. Rubenstein has worked on 11 clinical trials.
Selling to hematology and oncology practices?
See hematologists and oncologists in Delaware by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.