Dr. Leonard Mattano, MD
- Publications
- 30
- Industry payments
- $208,589
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 601 John St, Kalamazoo, MI 49007-5341
- Practice phone
- Call (269) 341-6350
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Mattano's professional email, personal email and mobile number
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Dr. Leonard Mattano is a pediatric hematology and oncology physician in Kalamazoo, Michigan
Dr. Mattano practices in Kalamazoo, Michigan.
Dr. Mattano's NPI, 1558330829, was assigned on March 17, 2006. Dr. Mattano graduated from University Of Michigan Medical School in 1985. Dr. Mattano holds Michigan license 4301405921.
- NPI
- 1558330829NPI Registry (opens in a new tab)
- NPI enumeration date
- March 17, 2006
- NPI status
- Active
- Practice phone
- (269) 341-6350
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Leonard Mattano's practice address is in Kalamazoo, Michigan
Dr. Mattano's practice address in the NPI Registry is 601 John St, Kalamazoo, MI 49007-5341. The practice phone is (269) 341-6350.
- NPI Registry address601 John St, Kalamazoo, MI 49007-5341Phone(269) 341-6350
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Leonard Mattano's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mattano practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Mattano's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leonard Mattano is one of 86 pediatric hematologys and oncology physicians in Michigan
Pediatric hematology-oncology is Dr. Mattano's primary specialty in the NPI Registry, under taxonomy code 2080P0207X. Dr. Mattano is licensed in Michigan.
Specialties and state licenses
- Pediatric hematology and oncology, MichiganPrimary
Pediatric hematologys and oncology physicians near Dr. Mattano
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. Leonard Mattano has 30 publications on record
Dmand AI links 30 papers to Dr. Mattano, published from 2012 to 2024. 2016 was the busiest year, with 6. The most frequent topics are Precursor Cell Lymphoblastic Leukemia-Lymphoma, Antineoplastic Combined Chemotherapy Protocols and Dexamethasone. Dr. Mattano has published most often in J Clin Oncol. Dr. Mattano's most frequent co-authors are Stephen P. Hunger, MD, Elizabeth A. Raetz, MD and Eric C. Larsen, MD.
Dr. Mattano's papers by year, 2013 to 2024
Topics Dr. Mattano writes about most
- Precursor Cell Lymphoblastic Leukemia-Lymphoma
- Antineoplastic Combined Chemotherapy Protocols
- Dexamethasone
- Asparaginase
- Methotrexate
- Osteonecrosis
- Polyethylene Glycols
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma
Dr. Mattano's most frequent co-authors
- Stephen P. Hunger, MD26 shared papers
- Elizabeth A. Raetz, MD23 shared papers
- Eric C. Larsen, MD20 shared papers
Recent publications by Dr. Mattano
See who Dr. Mattano researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mattano 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. Leonard Mattano received $208,589 in industry payments from 2016 to 2019
CMS Open Payments shows 140 general payments to Dr. Mattano from 3 drug and device companies from 2016 to 2019. Consulting fees make up the largest share, 100% of the total. Pfizer Inc. paid the most, $204,830. It also lists 5 research payments totaling $15,189 from 2021 to 2025.
General payments to Dr. Mattano by program year, 2016 to 2019
General payments to Dr. Mattano by kind, 2016 to 2019
- Consulting fees$208,521100%
- Food and beverage$680%
Companies that paid Dr. Mattano the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leonard Mattano graduated from University Of Michigan Medical School
Dr. Mattano graduated from University Of Michigan Medical School in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Leonard Mattano'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 |
| 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) |
| 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 Dr. Leonard Mattano
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. Leonard Mattano's NPI number?
Dr. Leonard Mattano's NPI number is 1558330829. It was assigned on March 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leonard Mattano?
Dr. Leonard Mattano is a pediatric hematology and oncology physician in Kalamazoo, Michigan. The primary specialty in the NPI Registry is Pediatric Hematology & Oncology Physician (taxonomy code 2080P0207X).
Where does Dr. Leonard Mattano practice?
Dr. Mattano practices at 601 John St, Kalamazoo, MI 49007-5341.
What is Dr. Leonard Mattano's office phone number?
The practice phone on file for Dr. Mattano is (269) 341-6350.
What is Dr. Leonard Mattano's medical license number?
Dr. Mattano holds Michigan license 4301405921.
Where did Dr. Leonard Mattano go to medical school?
Dr. Mattano graduated from University Of Michigan Medical School in 1985.
Has Dr. Leonard Mattano received payments from drug or device companies?
CMS Open Payments shows $208,589 in general payments to Dr. Mattano from 3 companies from 2016 to 2019. The largest total came from Pfizer Inc.
How long has Dr. Leonard Mattano been practicing?
Dr. Mattano graduated from medical school in 1985, 41 years ago.
Does Dr. Leonard Mattano do research?
Dmand AI links 30 publications to Dr. Mattano, published from 2012 to 2024.
Who does Dr. Leonard Mattano publish with?
Dr. Mattano's most frequent co-authors are Stephen P. Hunger, MD (26 shared papers), Elizabeth A. Raetz, MD (23 shared papers) and Eric C. Larsen, MD (20 shared papers).
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