Zachary Patrick Tolstyka, MD

Primary specialty

Pediatric Hematology & Oncology PhysicianTaxonomy code 2080P0207X

License

4301508837 Issued in MI

Practice address

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000

Phone

(734) 936-4000

NPI assigned

Apr 4, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Pediatric MedicineAlso: Hematology/Oncology

Education

Wayne State University School of Medicine, 2020

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1585958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1518596238",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3621 S STATE ST",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481081633",
            "telephone_number": "734-647-5299"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-936-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1522 Simpson Road East",
            "address_purpose": "LOCATION",
            "city": "Ann Arbor",
            "state": "MI",
            "postal_code": "481095718",
            "country_code": "US",
            "telephone_number": "734-232-5933",
            "fax_number": "734-998-2261",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TOLSTYKA",
        "first_name": "ZACHARY",
        "middle_name": "PATRICK",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-04",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "MI",
            "license": "4301508837",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MI",
            "license": "4301508837",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Molly Tokaz, MD
• Derya Toksoy, BSN, RN, DNP
• Anna Maria Tolf
• Anna Jeanne Tolis, MSW
• Shannon Tolliver, LICSW
• Carla Mary Toma, FNP-BC
• Mariam S Toma
• Sheri Lee Tomajko, NNP
• Sarah Ann Tomaka, D.D.S.
• Annette Marie Tomasello, R.N., C.N.M.

• Pediatric Hematology & Oncology Physician in Ann Arbor, MI
• Providers in Ann Arbor, 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 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.