Nature
Cancer-Associated FibroblastsCD8-Positive T-LymphocytesCell Line, Tumor
Dr. Ralph R. Weichselbaum, MD
NPI1578510749
- Publications
- 268
- Industry payments
- $32,275
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 5721 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Comer Children's Hospital - Hyde Park
Chicago, Illinois
Find Dr. Weichselbaum's professional email, personal email and mobile number
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Dr. Ralph R. Weichselbaum is a radiation oncologist in Chicago, Illinois
Dr. Weichselbaum practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois.
Dr. Weichselbaum's NPI, 1578510749, was assigned on May 31, 2006. Dr. Weichselbaum holds Massachusetts license 34518.
NPI and contact details
- NPI
- 1578510749NPI Registry (opens in a new tab)
- NPI enumeration date
- May 31, 2006
- NPI status
- Active
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Ralph R. Weichselbaum practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois
Dr. Weichselbaum's primary practice is Comer Children's Hospital - Hyde Park, at 5721 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- Comer Children's Hospital - Hyde Park5721 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ralph R. Weichselbaum is affiliated with 2 sites of care and 1 medical group
Dr. Weichselbaum's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. The medical group on file is UChicago Medicine Physicians (University of Chicago Physicians Group). Dmand AI also links Dr. Weichselbaum to 1 more group practice or clinic, named with a free account.
Comer Children's Hospital - Hyde ParkPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ralph R. Weichselbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weichselbaum practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comer Children's Hospital - Hyde Park | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ralph R. Weichselbaum is one of 243 radiation oncologists in Illinois
Radiation oncology is Dr. Weichselbaum's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Weichselbaum is licensed in Massachusetts.
Specialties and state licenses
- Radiation oncology, MassachusettsPrimary
Radiation oncologists near Dr. Weichselbaum
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. Ralph R. Weichselbaum's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Weichselbaum's median patient age at 44, with 100% women.
Dr. Weichselbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Ralph R. Weichselbaum has 268 publications on record
Dmand AI links 268 papers to Dr. Weichselbaum, published from 2009 to 2025. 2017 was the busiest year, with 18. The most frequent topics are Cell Line, Tumor, Neoplasm Metastasis and Immunotherapy. Dr. Weichselbaum has published most often in Clin Cancer Res. Dr. Weichselbaum's most frequent co-authors are Sean Pravin Pitroda, MD, Steven J. Chmura and Matthew Koshy, MD.
Papers268
Years published2009 to 2025
Dr. Weichselbaum's papers by year, 2016 to 2025
Topics Dr. Weichselbaum writes about most
- Cell Line, Tumor
- Neoplasm Metastasis
- Immunotherapy
- Tumor Microenvironment
- Mice, Inbred C57BL
- Signal Transduction
- Radiosurgery
- Gene Expression Regulation, Neoplastic
Dr. Weichselbaum's most frequent co-authors
- Sean Pravin Pitroda, MD59 shared papers
- Steven J. Chmura34 shared papers
- Matthew Koshy, MD14 shared papers
Recent publications by Dr. Weichselbaum
Breast NeoplasmsCD8-Positive T-LymphocytesCell Line, Tumor
AmphiregulinErbB ReceptorsNeoplasm Metastasis
AneuploidyB7-H1 AntigenBiomarkers, Tumor
AdenosineDNA DamageDNA Repair
See who Dr. Weichselbaum researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weichselbaum 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. Ralph R. Weichselbaum received $32,275 in industry payments from 2016 to 2021
CMS Open Payments shows 17 general payments to Dr. Weichselbaum from 4 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 94% of the total. EMD Serono, Inc. paid the most, $24,757.
General payments to Dr. Weichselbaum by program year, 2016 to 2021
General payments to Dr. Weichselbaum by kind, 2016 to 2021
$32.3Kin total
- Consulting fees$30,45594%
- Travel and lodging$1,4434%
- Food and beverage$3771%
Companies that paid Dr. Weichselbaum the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ralph R. Weichselbaum'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (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
Frequently asked questions about Dr. Ralph R. Weichselbaum
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. Ralph R. Weichselbaum's NPI number?
Dr. Ralph R. Weichselbaum's NPI number is 1578510749. It was assigned on May 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ralph R. Weichselbaum?
Dr. Ralph R. Weichselbaum is a radiation oncologist in Chicago, Illinois. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Ralph R. Weichselbaum practice?
Dr. Weichselbaum practices at 5721 S Maryland Ave, Chicago, IL 60637. Dr. Weichselbaum's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dmand AI also links Dr. Weichselbaum to 1 group practice or clinic.
What is Dr. Ralph R. Weichselbaum's office phone number?
The practice phone on file for Dr. Weichselbaum is (773) 702-1530.
What is Dr. Ralph R. Weichselbaum's medical license number?
Dr. Weichselbaum holds Massachusetts license 34518.
What medical group is Dr. Ralph R. Weichselbaum part of?
Dr. Weichselbaum is linked to UChicago Medicine Physicians (University of Chicago Physicians Group).
Has Dr. Ralph R. Weichselbaum received payments from drug or device companies?
CMS Open Payments shows $32,275 in general payments to Dr. Weichselbaum from 4 companies from 2016 to 2021. The largest total came from EMD Serono, Inc.
How long has Dr. Ralph R. Weichselbaum been practicing?
Dr. Weichselbaum's NPI was assigned in 2006.
Does Dr. Ralph R. Weichselbaum do research?
Dmand AI links 268 publications to Dr. Weichselbaum, published from 2009 to 2025.
Who does Dr. Ralph R. Weichselbaum publish with?
Dr. Weichselbaum's most frequent co-authors are Sean Pravin Pitroda, MD (59 shared papers), Steven J. Chmura (34 shared papers) and Matthew Koshy, MD (14 shared papers).
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