Dr. John M. Maris, MD
- Publications
- 274
- Clinical trials
- 2
- Hospital affiliations
- 1
- Industry payments
- $48,883
- Medical group
- 1
- Practice address
- 3401 Civic Center Blvd, Philadelphia, PA 19104
- Practice phone
- Call (215) 590-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Maris' 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. John M. Maris is a pediatric hematology and oncology physician in Philadelphia, Pennsylvania
Dr. Maris practices at Children's Hospital of Philadelphia in Philadelphia, Pennsylvania, part of Children's Hospital of Philadelphia.
Dr. Maris' NPI, 1275557787, was assigned on July 27, 2006. Dr. Maris holds Pennsylvania license MD044988L.
- NPI
- 1275557787NPI Registry (opens in a new tab)
- NPI enumeration date
- July 27, 2006
- NPI status
- Active
- Practice phone
- (215) 590-1000
- 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 Affiliation Data
Dr. John M. Maris practices at Children's Hospital of Philadelphia in Philadelphia, Pennsylvania
Dr. Maris' primary practice is Children's Hospital of Philadelphia, at 3401 Civic Center Blvd, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 590-1000.
- Children's Hospital of Philadelphia3401 Civic Center Blvd, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 590-1000
Source: Dmand AI Affiliation Data
Dr. John M. Maris is affiliated with 1 site of care and 1 medical group
Dr. Maris' primary practice is Children's Hospital of Philadelphia in Philadelphia, Pennsylvania, part of Children's Hospital of Philadelphia. The medical group on file is CHCA Allergy & Immunology.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John M. Maris' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maris practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's Hospital of Philadelphia | 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 Children's Hospital of Philadelphia and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John M. Maris is one of 179 pediatric hematologys and oncology physicians in Pennsylvania
Pediatric hematology-oncology is Dr. Maris' primary specialty in the NPI Registry, under taxonomy code 2080P0207X. Dr. Maris is licensed in Pennsylvania.
Specialties and state licenses
- Pediatric hematology and oncology, PennsylvaniaPrimary
Pediatric hematologys and oncology physicians near Dr. Maris
Counts of pediatric hematologys and oncology 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
Dr. John M. Maris' patients have a median age of 5
Across all payers, Dmand AI patient panel data puts Dr. Maris' median patient age at 5, with 17% women.
Dr. Maris' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 5
Patient panel by sex, all payers
- Women17%
- Men83%
Source: Dmand AI Patient Panel Data
Dr. John M. Maris has 274 publications on record
Dmand AI links 274 papers to Dr. Maris, published from 2008 to 2025. 2019 was the busiest year, with 20. The most frequent topics are Neuroblastoma, Cell Line, Tumor and Xenograft Model Antitumor Assays. Dr. Maris has published most often in Pediatr Blood Cancer. Dr. Maris' most frequent co-authors are Susan Cohn, E Anders Kolb, MD and Michael D. Hogarty, MD.
Dr. Maris' papers by year, 2016 to 2025
Topics Dr. Maris writes about most
- Neuroblastoma
- Cell Line, Tumor
- Xenograft Model Antitumor Assays
- N-Myc Proto-Oncogene Protein
- Mice, SCID
- Gene Expression Regulation, Neoplastic
- Antineoplastic Agents
- Immunotherapy
Dr. Maris' most frequent co-authors
Recent publications by Dr. Maris
Pediatr Blood Cancer
See who Dr. Maris researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Maris works with, so you can find a warm path to the right pediatric hematologys and oncology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John M. Maris has worked on 2 clinical trials
Dmand AI links Dr. Maris to 2 clinical trials, 2 of them phase 1 studies. Conditions studied include Desmoplastic Small Round Cell Tumor, Neuroblastoma and Neuroectodermal Tumors, Primitive, Peripheral.
Conditions in Dr. Maris' trials
- Desmoplastic Small Round Cell Tumor
- Neuroblastoma
- Neuroectodermal Tumors, Primitive, Peripheral
- Wilms Tumor
Investigators on the most trials with Dr. Maris
- Kenneth B. Desantes, MD1 shared trial
- Meenakshi G. Hegde, MD1 shared trial
- Crystal Lee Mackall, MD1 shared trial
Recent clinical trials with Dr. Maris
Next Generation Personalized Neuroblastoma Therapy (The NEPENTHE Trial) (opens in a new tab)
Enoblituzumab (MGA271) in Children With B7-H3-expressing Solid Tumors (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John M. Maris received $48,883 in industry payments from 2016 to 2024
CMS Open Payments shows 41 general payments to Dr. Maris from 6 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 87% of the total. Jubilant DraxImage Inc. paid the most, $21,418.
General payments to Dr. Maris by program year, 2016 to 2024
General payments to Dr. Maris by kind, 2016 to 2024
- Consulting fees$42,56887%
- Travel and lodging$3,0956%
- Honoraria$2,5005%
- Food and beverage$7201%
Companies that paid Dr. Maris the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John M. Maris'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 |
| 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. John M. Maris
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. John M. Maris' NPI number?
Dr. John M. Maris' NPI number is 1275557787. It was assigned on July 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John M. Maris?
Dr. John M. Maris is a pediatric hematology and oncology physician in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Pediatric Hematology & Oncology Physician (taxonomy code 2080P0207X).
Where does Dr. John M. Maris practice?
Dr. Maris practices at 3401 Civic Center Blvd, Philadelphia, PA 19104. Dr. Maris' primary practice is Children's Hospital of Philadelphia in Philadelphia, Pennsylvania, part of Children's Hospital of Philadelphia.
What is Dr. John M. Maris' office phone number?
The practice phone on file for Dr. Maris is (215) 590-1000.
What is Dr. John M. Maris' medical license number?
Dr. Maris holds Pennsylvania license MD044988L.
Which hospitals is Dr. John M. Maris affiliated with?
Dr. Maris practices at Children's Hospital of Philadelphia in Philadelphia, Pennsylvania.
What medical group is Dr. John M. Maris part of?
Dr. Maris is linked to CHCA Allergy & Immunology.
Has Dr. John M. Maris received payments from drug or device companies?
CMS Open Payments shows $48,883 in general payments to Dr. Maris from 6 companies from 2016 to 2024. The largest total came from Jubilant DraxImage Inc.
How long has Dr. John M. Maris been practicing?
Dr. Maris' NPI was assigned in 2006.
Does Dr. John M. Maris do research?
Dmand AI links 274 publications to Dr. Maris, published from 2008 to 2025. Dr. Maris has worked on 2 clinical trials.
Who does Dr. John M. Maris publish with?
Dr. Maris' most frequent co-authors are Susan Cohn (34 shared papers), E Anders Kolb, MD (32 shared papers) and Michael D. Hogarty, MD (30 shared papers).
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