Grant Marylander, LSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

9924672 Issued in CO

Practice address

1650 38TH St Ste 100E
Boulder, CO 80301-2624

Phone

(720) 295-3544

NPI assigned

Jul 26, 2023

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

Medicare fee-for-service enrollment

Enrolled in CO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Grow Healthcare Group PA

  • Mental Health Counselor
  • Miami, FL
  • NPI 1245845932

  CO

  Medicare reassignment

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

{
    "created_epoch": "1690329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761782400000",
    "number": "1578244331",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4801 RIVERBEND RD",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803012613",
            "telephone_number": "303-415-8115"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1650 38TH ST STE 100E",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803012624",
            "telephone_number": "720-295-3544"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARYLANDER",
        "first_name": "GRANT",
        "credential": "LSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-07-26",
        "last_updated": "2025-10-30",
        "certification_date": "2025-10-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CO",
            "license": "9924672",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melissa Ivanna Martinez
• Kathleen Marie Marx, CMA
• Mary Hartnett, PH.D., P.C.
• Mary K. Howard
• Shannon Maryjanowski
• Donald A Maschka, M.D.
• Leanne Masi
• Smrity Maskey
• Nikolas Maslow, M.A., LPC, CGP
• Christine Ann Mason, PHD

• Clinical Social Worker in Boulder, CO
• Providers in Boulder, CO by specialty
• Clinical Social Worker in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 30, 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.
• 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.