Donna M Timchak, MD

Primary specialty

Pediatric Cardiology PhysicianTaxonomy code 2080P0202X

License

25MA05469800 Issued in NJ

Practice address

100 Madison Ave
Morristown, NJ 07960-6136

Phone

(973) 971-5996

Fax

(973) 290-7979

NPI assigned

Mar 8, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NJ

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: dtimchak3437@direct.ahsys.org

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.

• Practice Associates Medical Group

  • Internal Medicine Physician
  • Morristown, NJ
  • NPI 1427016385
  Medicare reassignment
• Ahs Hospital Corp.

  • General Acute Care Hospital
  • Morristown, NJ
  • NPI 1053384776
  NPD (past)
• Maternal Fetal Medicine of Practice Associates, PA

  • Maternal & Fetal Medicine Physician
  • Morristown, NJ
  • NPI 1578613840
  NPD (past)
• Practice Associates,Inc

  • Physician Assistant
  • Morristown, NJ
  • NPI 1699733907
  NPD (past)
• Specialty Care of Practice Associates,PA

  • Specialist
  • Morristown, NJ
  • NPI 1215985908
  NPD (past)

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

{
    "created_epoch": "1141776000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780444800000",
    "number": "1689641623",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 416457",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022416457",
            "telephone_number": "973-971-7163",
            "fax_number": "973-898-3905"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 MADISON AVE",
            "city": "MORRISTOWN",
            "state": "NJ",
            "postal_code": "079606136",
            "telephone_number": "973-971-5996",
            "fax_number": "973-290-7979"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11 Overlook Rd Ste 230",
            "address_purpose": "LOCATION",
            "city": "Summit",
            "state": "NJ",
            "postal_code": "079013580",
            "country_code": "US",
            "telephone_number": "973-971-5996",
            "fax_number": "973-290-7979",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "99 Beauvoir Ave",
            "address_purpose": "LOCATION",
            "city": "Summit",
            "state": "NJ",
            "postal_code": "079013533",
            "country_code": "US",
            "telephone_number": "973-971-5996",
            "fax_number": "973-290-7979",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Madison Ave Fl 2",
            "address_purpose": "LOCATION",
            "city": "Morristown",
            "state": "NJ",
            "postal_code": "079607337",
            "country_code": "US",
            "telephone_number": "973-971-5996",
            "fax_number": "973-290-7979",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Madison Ave Fl 1",
            "address_purpose": "LOCATION",
            "city": "Morristown",
            "state": "NJ",
            "postal_code": "079607337",
            "country_code": "US",
            "telephone_number": "973-971-7520",
            "fax_number": "973-267-4165",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TIMCHAK",
        "first_name": "DONNA",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-03-08",
        "last_updated": "2026-06-03",
        "certification_date": "2026-06-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "NJ",
            "license": "25MA05469800",
            "primary": true
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "NY",
            "license": "167609",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01546652",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Thrive Therapy Services
• Michelle Thurlow
• Kelly Thynne, ANP, RNFA
• Maureen P. Tillman, L.C.S.W.
• Wayne S Tillman, PH.D.
• Sara Layne Tirpak, M.A. CCC-SLP
• John Tis, M.D.
• Titan Health Partners LLC
• Titan Health Partners LLC
• Titan Health Partners LLC

• Pediatric Cardiology Physician in Morristown, NJ
• Providers in Morristown, NJ by specialty
• Pediatric Cardiology Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 3, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.