Pediatr Blood Cancer
History, 20th CenturyHistory, 21st CenturyPediatrics
Dr. Karen J. Marcus, MD
NPI1609827666
- Medicare services, 2022
- 12
- Publications
- 164
- Clinical trials
- 4
- Industry payments
- $10,471
- Insurance carriers
- 3
- Practice address
- 75 Francis St, Boston, MA 02115
- Practice phone
- Call (617) 355-8399
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Marcus' 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. Karen J. Marcus is a radiation oncologist in Boston, Massachusetts
Dr. Marcus practices in Boston, Massachusetts.
Dr. Marcus' NPI, 1609827666, was assigned on May 15, 2006. Dr. Marcus graduated from University of Maryland School of Medicine - Baltimore in 1980. Dr. Marcus holds Massachusetts license 70801.
NPI and contact details
- NPI
- 1609827666NPI Registry (opens in a new tab)
- NPI enumeration date
- May 15, 2006
- NPI status
- Active
- Practice phone
- (617) 355-8399
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Karen J. Marcus' practice address is in Boston, Massachusetts
Dr. Marcus' practice address in the NPI Registry is 75 Francis St, Boston, MA 02115, in Suffolk County. The practice phone is (617) 355-8399.
- NPI Registry address75 Francis St, Boston, MA 02115 · Suffolk CountyPhone(617) 355-8399
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Karen J. Marcus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Marcus' practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Karen J. Marcus is one of 186 radiation oncologists in Massachusetts
Radiation oncology is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Marcus is board certified in pediatrics by the American Board of Pediatrics. Dmand AI has Dr. Marcus' licenses on file in 5 states: Massachusetts, Florida, Maine, Rhode Island and Maryland.
Specialties and state licenses
- Radiation oncology, MassachusettsPrimary
- Florida license
- Maine license
- Rhode Island license
- Maryland license
Radiation oncologists near Dr. Marcus
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. Karen J. Marcus billed Medicare for 12 services in 2022
CMS data shows 12 Medicare services from Dr. Marcus across 1 procedure code in 2022. Medicare paid $636 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202212
Paid by Medicare$636
Procedure codes1
Dr. Marcus' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Imaging
- 2021: 2562022: 1295%
- Other services
- 2021: 792022: 0100%
Dr. Marcus compared with the Massachusetts median for radiation oncologists, 2022
- Dr. Marcus
- Massachusetts median
- Medicare services
- 12vs 1,16199% below
Medians across 182 radiation oncologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Marcus' most billed Medicare procedure codes, 2022
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. Marcus?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marcus and other radiation oncologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Dr. Karen J. Marcus has 164 publications on record
Dmand AI links 164 papers to Dr. Marcus, published from 2006 to 2025. 2021 was the busiest year, with 11. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Radiotherapy Dosage and Brain Neoplasms. Dr. Marcus has published most often in Int J Radiat Oncol Biol Phys. Dr. Marcus' most frequent co-authors are Liliana Christova Goumnerova, MD, FRCSC, Nicole J. Ullrich, MD and Susan N. Chi, MD.
Papers164
Years published2006 to 2025
Dr. Marcus' papers by year, 2016 to 2025
Topics Dr. Marcus writes about most
- Antineoplastic Combined Chemotherapy Protocols
- Radiotherapy Dosage
- Brain Neoplasms
- Hodgkin Disease
- Bone Neoplasms
- Neuroblastoma
- Radiotherapy
- Sarcoma, Ewing
Dr. Marcus' most frequent co-authors
- Liliana Christova Goumnerova, MD, FRCSC18 shared papers
- Nicole J. Ullrich, MD18 shared papers
- Susan N. Chi, MD17 shared papers
Recent publications by Dr. Marcus
Pediatr Blood Cancer
Antineoplastic Combined Chemotherapy ProtocolsBrain NeoplasmsChemoradiotherapy
Brain NeoplasmsEpendymomaInfratentorial Neoplasms
NeuroblastomaPalliative CareRadiation Dose Hypofractionation
Radiother Oncol
NeuroblastomaRadiotherapy Dosage
See who Dr. Marcus researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marcus 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. Karen J. Marcus has worked on 4 clinical trials
Dmand AI links Dr. Marcus to 4 clinical trials. Conditions studied include Bone Neoplasms, Ganglioglioma and Myosarcoma. Massachusetts General Hospital sponsors the most, 4.
Conditions in Dr. Marcus' trials
- Bone Neoplasms
- Ganglioglioma
- Myosarcoma
- Bone Diseases
- Ependymoma
Investigators on the most trials with Dr. Marcus
Recent clinical trials with Dr. Marcus
Proton Beam Radiation Therapy for Central Nervous System (CNS) Germ Cell Tumors (opens in a new tab)
Status unknown
Proton Beam radiation
Bone NeoplasmsBone DiseasesProton Beam Radiation
Proton Radiotherapy for Pediatric Brain Tumors Requiring Partial Brain Irradiation (opens in a new tab)
CompletedPhase 2
GangliogliomaEpendymomaProton radiotherapy
Proton Radiation Therapy (RT) for the Treatment of Pediatric Rhabdomyosarcoma (opens in a new tab)
Completed
MyosarcomaRhabdomyosarcomaProton Beam Radiation
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Karen J. Marcus received $10,471 in industry payments from 2018 to 2019
CMS Open Payments shows 11 general payments to Dr. Marcus from 2 drug and device companies from 2018 to 2019. Travel and lodging make up the largest share, 73% of the total. Varian Medical Systems, Inc. paid the most, $10,453.
General payments to Dr. Marcus by program year, 2018 to 2019
General payments to Dr. Marcus by kind, 2018 to 2019
$10.5Kin total
- Travel and lodging$7,65073%
- Speaker and faculty fees$2,77927%
- Food and beverage$420%
Companies that paid Dr. Marcus the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karen J. Marcus has 16 awards and honors on record
Dmand AI lists 16 awards for Dr. Marcus, most recently Exemplary Care Award in 2015.
Awards and honors for Dr. Marcus
- 2015
- Exemplary Care Award
- 2014
- “Top Doctor”
- 2009
- Best Doctor Award
- 2004
- Teacher of the Year Award
- 1990
- Professional Achievement Award
- 1988
- Clinical Oncology Fellowship
Source: Dmand AI Professional Profile Data
Dr. Karen J. Marcus graduated from University of Maryland School of Medicine - Baltimore
Dr. Marcus graduated from University of Maryland School of Medicine - Baltimore in 1980. Dr. Marcus is a member of ASTRO.
- Medical school
- Board certified in pediatrics
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. Karen J. Marcus accepts plans from 3 insurance carriers
Dr. Marcus is in network with 3 carriers, including Molina, RI State Medicaid and VT State Medicaid. Medicaid plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Molina
- RI State Medicaid
- VT State Medicaid
Plan types Dr. Marcus accepts, by number of carriers
- Medicaid3
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Karen J. Marcus'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 |
| 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 |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Karen J. Marcus
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. Karen J. Marcus' NPI number?
Dr. Karen J. Marcus' NPI number is 1609827666. It was assigned on May 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen J. Marcus?
Dr. Karen J. Marcus is a radiation oncologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Karen J. Marcus practice?
Dr. Marcus practices at 75 Francis St, Boston, MA 02115.
What is Dr. Karen J. Marcus' office phone number?
The practice phone on file for Dr. Marcus is (617) 355-8399.
What is Dr. Karen J. Marcus' medical license number?
Dr. Marcus holds Massachusetts license 70801, one of the licenses on file in 5 states.
Which states has Dr. Karen J. Marcus been licensed in?
Dmand AI has state licenses on file for Dr. Marcus in Massachusetts (1989 to 2026), Florida (2022 to 2025), Maine (2020 to 2021), Rhode Island (2020) and Maryland (1984 to 1992).
Does Dr. Karen J. Marcus accept Medicare?
Yes. CMS data shows Dr. Marcus billed Medicare for 12 services in 2022.
Is Dr. Karen J. Marcus board certified?
Yes. Dr. Marcus is board certified in pediatrics by the American Board of Pediatrics.
What services does Dr. Karen J. Marcus bill to Medicare?
In 2022, Dr. Marcus' most billed Medicare services were radiation oncology (77334).
Where did Dr. Karen J. Marcus go to medical school?
Dr. Marcus graduated from University of Maryland School of Medicine - Baltimore in 1980.
Show 5 more questionsShow fewer questions
Has Dr. Karen J. Marcus received payments from drug or device companies?
CMS Open Payments shows $10,471 in general payments to Dr. Marcus from 2 companies from 2018 to 2019. The largest total came from Varian Medical Systems, Inc.
How long has Dr. Karen J. Marcus been practicing?
Dr. Marcus graduated from medical school in 1980, 46 years ago.
Does Dr. Karen J. Marcus do research?
Dmand AI links 164 publications to Dr. Marcus, published from 2006 to 2025. Dr. Marcus has worked on 4 clinical trials.
Who does Dr. Karen J. Marcus publish with?
Dr. Marcus' most frequent co-authors are Liliana Christova Goumnerova, MD, FRCSC (18 shared papers), Nicole J. Ullrich, MD (18 shared papers) and Susan N. Chi, MD (17 shared papers).
What insurance does Dr. Karen J. Marcus accept?
Dr. Marcus is in network with 3 carriers, including Molina, RI State Medicaid and VT State Medicaid. Medicaid plans come from the most carriers, 3. Check the plan with the practice before a visit.
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