Melissa Rose Martos

Primary specialty

Pediatric Hematology & Oncology PhysicianTaxonomy code 2080P0207X

License

MD.MD.61269913 Issued in WA

Practice address

4800 Sand Point Way NE #MB.8.501
Seattle, WA 98105-3901

Phone

(206) 987-2525

NPI assigned

Mar 19, 2019

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

Medicare fee-for-service enrollment

Enrolled in WA

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

Locations

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.

• The Association of Chrmc and University Physicians

  • Pediatrics Physician
  • Seattle, WA
  • NPI 1255449963
  Medicare reassignment NPD
• Association of CHMC and University Physicians

  • Pediatrics Physician
  • Richland, WA
  • NPI 1851680664
  NPD
• Seattle Children'S Hospital

  • Children's Hospital
  • Seattle, WA
  • NPI 1467536276
  NPD (past)

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

{
    "created_epoch": "1552953600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755475200000",
    "number": "1093274847",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4800 SAND POINT WAY NE # OC.7830",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981053901"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4800 SAND POINT WAY NE #MB.8.501",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981053901",
            "telephone_number": "206-987-2525"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARTOS",
        "first_name": "MELISSA",
        "middle_name": "ROSE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-19",
        "last_updated": "2025-08-18",
        "certification_date": "2025-08-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "WA",
            "license": "MDRE.ML.60948783",
            "primary": false
        },
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "WA",
            "license": "MD.MD.61269913",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer Lange Martinson, ARNP
• Kristina Maria Martinson, RRT
• Kristoffer Robert Martinson, PHARMD
• Monica Marton Popovici, MD
• Tammy Marton, ATC
• Molly Martyn, MD
• Peter Martynowych, DOCTORATE
• Evalina Mayya Martynyuk
• Gary Martin Martz, D.O.
• Lore A Martz, RN

• Pediatric Hematology & Oncology Physician in Seattle, WA
• Providers in Seattle, WA by specialty
• Pediatric Hematology & Oncology Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2025; 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.