Leonard Mattano, M.D.

Primary specialty

Pediatric Hematology & Oncology PhysicianTaxonomy code 2080P0207X

License

4301405921 Issued in MI

Practice address

601 John St
Ste E-300
Kalamazoo, MI 49007-5341

Phone

(269) 341-6350

NPI assigned

Mar 17, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Michigan State University Kalamazoo Center for Medical Studies

  • Multi-Specialty Clinic/Center
  • Kalamazoo, MI
  • NPI 1568467249
  NPD (past)
• Western Michigan University School of Medicine

  • Multi-Specialty Clinic/Center
  • Kalamazoo, MI
  • NPI 1316212343
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1142553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1558330829",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 OAKLAND DR",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490081282"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 JOHN ST",
            "address_2": "STE E-300",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490075341",
            "telephone_number": "269-341-6350"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATTANO",
        "first_name": "LEONARD",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-17",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "MI",
            "license": "4301405921",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "3803901681",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4184102",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Maternal Infant Health Program
• Heather Lyn Matheny, P.A.-C
• Nina A Mathew, MD
• Lilita Matison, LMSW
• Mara Inta Matison, DDS
• Mattawan Dental, PLC, Dba Texas Corners Dental
• Mattawan Dental, PLC, Dba Texas Corners Dental
• Lindsy Lee Matteoni-Losiewski, LPC
• Janese Lynn Mattern
• Matthew Rushlau Edd, LLC

• Pediatric Hematology & Oncology Physician in Kalamazoo, MI
• Providers in Kalamazoo, MI by specialty
• Pediatric Hematology & Oncology Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.