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Edit this profileAt a glance
- 3401 Civic Center Blvd, Children's Hospital of Philadelphia - Hem/Onc, Philadelphia, PA 19104
About Dr. Maris
Based in Philadelphia, PA, John M. Maris, M.D. is listed in the NPI registry under pediatric hematology-oncology. John is also listed as specializing in pediatrics. NPI 1275557787 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (215) 590-3535
- Email not available
Practice Locations
3401 CIVIC CENTER BLVD CHILDREN'S HOSPITAL OF PHILADELPHIA - HEM/ONC
Philadelphia, PA 19104
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other pediatric hematology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is John M. Maris's specialty?
John M. Maris is a pediatric hematology in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pediatric Hematology-Oncology”.
NPI registry
Where can I find John M. Maris?
John M. Maris is listed at 3401 Civic Center Blvd Children's Hospital of Philadelphia - Hem/Onc, Philadelphia, PA 19104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact John M. Maris?
The number on file is (215) 590-3535. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John M. Maris?
John M. Maris's National Provider Identifier is 1275557787. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does John M. Maris have?
John M. Maris has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is John M. Maris's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John M. Maris. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.