John J. Fung
- Part D claims, 2022
- 26
- Publications
- 161
- Clinical trials
- 1
- Industry payments
- $144,213
- Medical groups
- 2
- 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 John Fung'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.
John J. Fung is a transplant surgery physician in Chicago, Illinois
John Fung practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois.
John Fung's NPI, 1235293622, was assigned on December 20, 2006. John Fung graduated from University of Chicago, Pritzker School of Medicine in 1982. John Fung holds Illinois license 036141746.
- NPI
- 1235293622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315900891
- NPI enumeration date
- December 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John J. Fung practices at Comer Children's Hospital - Hyde Park in Chicago, Illinois
John Fung'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
John J. Fung is affiliated with 1 site of care and 2 medical groups
John Fung's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. The medical group on file is UChicago Medicine Physicians. Dmand AI also links John Fung to 1 more medical group, 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 John J. Fung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Fung 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 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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John J. Fung is one of 47 transplant surgery physicians in Illinois
Transplant surgery is John Fung's primary specialty in the NPI Registry, under taxonomy code 204F00000X. John Fung is licensed in Illinois.
Specialties and state licenses
- Transplant surgery, IllinoisPrimary
Transplant surgery physicians near John Fung
Counts of transplant surgery physicians 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
John J. Fung's patients have a median age of 77
Across all payers, Dmand AI patient panel data puts John Fung's median patient age at 77, with 14% women.
John Fung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women14%
- Men86%
Source: Dmand AI Patient Panel Data
John J. Fung wrote 26 Medicare Part D claims in 2022
In 2022, John Fung wrote 26 Medicare Part D claims. They cover 2 drugs, with $381 in total drug cost. In 2021, CMS named 27 claims across 2 drugs.
John Fung's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 272022: 264%
Drugs named by CMS: 2 in 2022, 2 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How John J. Fung takes part in Medicare
John Fung 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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John J. Fung has 161 publications on record
Dmand AI links 161 papers to John Fung, published from 2011 to 2025. 2021 was the busiest year, with 13. The most frequent topics are Liver Transplantation, Graft Survival and Liver Neoplasms. John Fung has published most often in Am J Transplant. John Fung's most frequent co-authors are Federico N. Aucejo, MD, Piotr P. Witkowski and Dympna M. Kelly, MD.
John Fung's papers by year, 2016 to 2025
Topics John Fung writes about most
- Liver Transplantation
- Graft Survival
- Liver Neoplasms
- Graft Rejection
- Carcinoma, Hepatocellular
- Liver
- Immunosuppressive Agents
- Tissue and Organ Procurement
John Fung's most frequent co-authors
- Federico N. Aucejo, MD27 shared papers
- Piotr P. Witkowski21 shared papers
- Dympna M. Kelly, MD20 shared papers
Recent publications by John Fung
J Vasc Interv Radiol
Am J Transplant
Cell Host Microbe
See who John Fung researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who John Fung works with, so you can find a warm path to the right transplant surgery physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
John J. Fung has worked on 1 clinical trial
Dmand AI links John Fung to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Celiac Disease and Malabsorption Syndromes. Open Payments lists research payments to John Fung that name 1 trial.
Conditions in John Fung's trials
- Celiac Disease
- Malabsorption Syndromes
Investigators on the most trials with John Fung
- Newton F. Adkinson, MD1 shared trial
- David H. Alpers, MD1 shared trial
- James R. Baker, MD1 shared trial
Recent clinical trials with John Fung
Dose-Ranging Study of the Efficacy and Safety of TAK-101 for Prevention of Gluten-Specific T Cell Activation in Participants With Celiac Disease on a Gluten-Free Diet (opens in a new tab)
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
John J. Fung received $144,213 in industry payments from 2016 to 2025
CMS Open Payments shows 107 general payments to John Fung from 24 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 61% of the total. Merck Sharp & Dohme Corporation paid the most, $37,413. It also lists 7 research payments totaling $18,095 from 2017 to 2025, naming 1 clinical trial.
General payments to John Fung by program year, 2016 to 2025
General payments to John Fung by kind, 2016 to 2025
- Consulting fees$88,45361%
- Travel and lodging$35,64625%
- Speaker and faculty fees$10,5507%
- Honoraria$6,0704%
- Food and beverage$3,4942%
Companies that paid John Fung the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John J. Fung graduated from University of Chicago, Pritzker School of Medicine
John Fung graduated from University of Chicago, Pritzker School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John J. Fung'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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 John J. Fung
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John J. Fung's NPI number?
John J. Fung's NPI number is 1235293622. It was assigned on December 20, 2006, and it is active in the NPI Registry.
What does John J. Fung specialize in?
John J. Fung is a transplant surgery physician in Chicago, Illinois. The primary specialty in the NPI Registry is Transplant Surgery Physician (taxonomy code 204F00000X).
Where does John J. Fung practice?
John Fung practices at 5721 S Maryland Ave, Chicago, IL 60637. John Fung's primary practice is Comer Children's Hospital - Hyde Park in Chicago, Illinois. Dmand AI also links John Fung to 1 medical group.
What is John J. Fung's office phone number?
The practice phone on file for John Fung is (773) 702-1530.
What is John J. Fung's medical license number?
John Fung holds Illinois license 036141746.
What medical group is John J. Fung part of?
John Fung is linked to UChicago Medicine Physicians. Dmand AI links John Fung to 1 more medical group.
Does John J. Fung accept Medicare?
Yes. CMS lists John Fung as accepting Medicare assignment.
Where did John J. Fung go to medical school?
John Fung graduated from University of Chicago, Pritzker School of Medicine in 1982.
What drugs does John J. Fung prescribe most?
In 2022 Medicare Part D data, John Fung's most prescribed drugs by claims were Pantoprazole Sodium and Sulfamethoxazole-Trimethoprim.
Has John J. Fung received payments from drug or device companies?
CMS Open Payments shows $144,213 in general payments to John Fung from 24 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
Show 3 more questionsShow fewer questions
How long has John J. Fung been practicing?
John Fung graduated from medical school in 1982, 44 years ago.
Does John J. Fung do research?
Dmand AI links 161 publications to John Fung, published from 2011 to 2025. John Fung has worked on 1 clinical trial.
Who does John J. Fung publish with?
John Fung's most frequent co-authors are Federico N. Aucejo, MD (27 shared papers), Piotr P. Witkowski (21 shared papers) and Dympna M. Kelly, MD (20 shared papers).
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