Dr. Alexander Michael Stessin, MD, PhD
- Medicare services, 2024
- 1,659
- Medicare patients, 2024
- 192
- Part D claims, 2024
- 25
- Publications
- 22
- Clinical trials
- 3
- Practice address
- Health Sciences Center Suny, Stony Brook, NY 11794
- Practice phone
- Call (631) 444-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stessin'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. Alexander Michael Stessin is a radiation oncologist in Stony Brook, New York
Dr. Stessin practices at Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University.
Dr. Stessin's NPI, 1598992802, was assigned on June 12, 2009. Dr. Stessin holds New York license 274556.
- NPI
- 1598992802NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204159890
- NPI enumeration date
- June 12, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 444-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Michael Stessin practices at 2 locations in Stony Brook, New York
Dr. Stessin's primary practice is Stony Brook University Hospital, at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County. The practice phone is (631) 444-4000. Dr. Stessin also practices at Stony Brook University Hospital, 101 Nicolls Rd, Stony Brook, NY 11794.
- Stony Brook University HospitalPrimaryHealth Sciences Center Suny, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4000
- Stony Brook University Hospital101 Nicolls Rd, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Alexander Michael Stessin is affiliated with 2 sites of care and 1 medical group
Dr. Stessin's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. The medical group on file is Stony Brook Radiation Oncology. Dmand AI also links Dr. Stessin to 1 more clinical lab, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexander Michael Stessin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stessin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stony Brook University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Stony Brook University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Alexander Michael Stessin is one of 385 radiation oncologists in New York
Radiation oncology is Dr. Stessin's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Stessin is licensed in New York.
Specialties and state licenses
- Radiation oncology, New YorkPrimary
Radiation oncologists near Dr. Stessin
Counts of radiation 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
Dr. Alexander Michael Stessin billed Medicare for 1,659 services in 2024
CMS data shows 1,659 Medicare services from Dr. Stessin across 15 procedure codes in 2024, for 192 Medicare patients. Medicare paid $127,822 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stessin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 9422024: 8609%
- Other services
- 2023: 6812024: 54420%
- Office and hospital visits
- 2023: 2422024: 2555%
Dr. Stessin compared with the New York median for radiation oncologists, 2024
- Dr. Stessin
- New York median
- Medicare services
- 1,659vs 1,05457% above
- Medicare patients
- 192vs 16020% above
- Part D claims
- 11vs 3669% below
Medians across 368 radiation oncologists in New York with Dmand AI profiles that report each measure.
Dr. Stessin'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stessin and other radiation oncologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander Michael Stessin treated 192 Medicare patients in 2024, average age 75
CMS counts 192 Medicare patients who saw Dr. Stessin in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have cancer, and 75% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.59, 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. Stessin's median patient age at 65, with 75% women.
Dr. Stessin's Medicare patients by age, 2024
Dr. Stessin's Medicare patients by sex, 2024
- Women14374%
- Men4926%
Chronic conditions among Dr. Stessin's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes33%
- Osteoporosis29%
- Ischemic heart disease28%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stessin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women75%
- Men23%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexander Michael Stessin wrote 25 Medicare Part D claims in 2024
In 2024, Dr. Stessin wrote 25 Medicare Part D claims for 18 patients. 92% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $264 in total drug cost.
Dr. Stessin's Part D claims by kind of drug, 2024
- Generic23 claims92%
- Brand-name and other2 claims8%
Dr. Stessin's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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. Alexander Michael Stessin offers telehealth to Medicare patients
Dr. Stessin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Stessin as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Alexander Michael Stessin has 22 publications on record
Dmand AI links 22 papers to Dr. Stessin, published from 2012 to 2024. 2015 was the busiest year, with 2. The most frequent topics are SEER Program, Radiotherapy, Adjuvant and Breast Neoplasms. Dr. Stessin has published most often in Int J Radiat Oncol Biol Phys. Dr. Stessin's most frequent co-authors are Samuel Ryu, MD, John Andrew Boockvar, MD and Joseph A. Miccio, MD.
Dr. Stessin's papers by year, 2013 to 2024
Topics Dr. Stessin writes about most
- SEER Program
- Radiotherapy, Adjuvant
- Breast Neoplasms
- Brain Neoplasms
- Cranial Irradiation
- Disease Models, Animal
- Fingolimod Hydrochloride
- Hippocampus
Dr. Stessin's most frequent co-authors
- Samuel Ryu, MD11 shared papers
- John Andrew Boockvar, MD3 shared papers
- Joseph A. Miccio, MD3 shared papers
Recent publications by Dr. Stessin
Int J Radiat Oncol Biol Phys
See who Dr. Stessin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stessin works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alexander Michael Stessin has worked on 3 clinical trials
Dmand AI links Dr. Stessin to 3 clinical trials, 3 of them phase 3 studies. 3 are still active or recruiting. Conditions studied include Carcinoma, Hepatocellular, Carcinoma, Lobular and Pancreatic Intraductal Neoplasms.
Conditions in Dr. Stessin's trials
- Carcinoma, Hepatocellular
- Carcinoma, Lobular
- Pancreatic Intraductal Neoplasms
- Carcinoma, Ductal, Breast
- Liver Neoplasms
Investigators on the most trials with Dr. Stessin
- Mitchel L. Fromm, MD2 shared trials
- Thomas J. Gergel, MD2 shared trials
- Richard S. Hudes, MD2 shared trials
Recent clinical trials with Dr. Stessin
Hypofractionated Radiation Therapy After Mastectomy in Preventing Recurrence in Patients with Stage IIa-IIIa Breast Cancer (opens in a new tab)
Sorafenib Tosylate With or Without Stereotactic Body Radiation Therapy in Treating Patients With Liver Cancer (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Alexander Michael Stessin received $171 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Stessin from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Brainlab, Inc. paid the most, $171.
Companies that paid Dr. Stessin the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Alexander Michael Stessin'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| 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
Frequently asked questions about Dr. Alexander Michael Stessin
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. Alexander Michael Stessin's NPI number?
Dr. Alexander Michael Stessin's NPI number is 1598992802. It was assigned on June 12, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Michael Stessin?
Dr. Alexander Michael Stessin is a radiation oncologist in Stony Brook, New York. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Alexander Michael Stessin practice?
Dr. Stessin practices at Health Sciences Center Suny, Stony Brook, NY 11794. Dr. Stessin also practices at 101 Nicolls Rd, Stony Brook, NY 11794. Dr. Stessin's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. Dmand AI also links Dr. Stessin to 1 clinical lab.
What is Dr. Alexander Michael Stessin's office phone number?
The practice phone on file for Dr. Stessin is (631) 444-4000.
What is Dr. Alexander Michael Stessin's medical license number?
Dr. Stessin holds New York license 274556.
Which hospitals is Dr. Alexander Michael Stessin affiliated with?
Dr. Stessin practices at Stony Brook University Hospital in Stony Brook, New York.
What medical group is Dr. Alexander Michael Stessin part of?
Dr. Stessin is linked to Stony Brook Radiation Oncology.
Does Dr. Alexander Michael Stessin accept Medicare?
Yes. CMS data shows Dr. Stessin billed Medicare for 1,659 services in 2024, and Dr. Stessin accepts Medicare assignment.
Does Dr. Alexander Michael Stessin offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Stessin as offering telehealth services.
How many Medicare patients does Dr. Alexander Michael Stessin see?
CMS counts 192 Medicare patients who saw Dr. Stessin in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Alexander Michael Stessin bill to Medicare?
In 2024, Dr. Stessin's most billed Medicare services were medicare service (G6002), radiation oncology (77300) and radiation oncology (77427).
What drugs does Dr. Alexander Michael Stessin prescribe most?
In 2023 Medicare Part D data, Dr. Stessin's most prescribed drugs by claims were Mometasone Furoate.
Has Dr. Alexander Michael Stessin received payments from drug or device companies?
CMS Open Payments shows $171 in general payments to Dr. Stessin from 1 company from 2016 to 2016. The largest total came from Brainlab, Inc.
How long has Dr. Alexander Michael Stessin been practicing?
Dr. Stessin graduated from medical school in 2009, 17 years ago.
Does Dr. Alexander Michael Stessin do research?
Dmand AI links 22 publications to Dr. Stessin, published from 2012 to 2024. Dr. Stessin has worked on 3 clinical trials.
Who does Dr. Alexander Michael Stessin publish with?
Dr. Stessin's most frequent co-authors are Samuel Ryu, MD (11 shared papers), John Andrew Boockvar, MD (3 shared papers) and Joseph A. Miccio, MD (3 shared papers).
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