NPIMap

Individual provider Active NPI

Marissa Baker

  • Family Nurse Practitioner
  • Clifton Park, NY
National Provider Identifier
1861226243
Registry record updated Nov 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
355394 Issued in NY
Practice address
3 Crossings Blvd
Suite 1
Clifton Park, NY 12065
Phone
(518) 831-4434
NPI assigned
Aug 28, 2024
Last updated
Nov 10, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 10, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 355394 NY Primary

Addresses

Primary practice location

3 Crossings Blvd
Suite 1
Clifton Park, NY 12065

Mailing address

449 Route 146 Ste 101
Halfmoon, NY 12065-3239
Phone (518) 373-3800

Other practice location 1

1700 Riverfront Ctr
Amsterdam, NY 12010-4620
Phone (518) 843-0020

Other names 1

  • Marissa Kirker Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241212001047 NY Practitioner - Nurse Practitioner 0749716801 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New York Oncology Hematology PCGroup PAC ID 3072406222, 82 clinicians

Practice addresses (Care Compare)

1700 Riverfront Ctr
Amsterdam, NY 12010-4620
Phone (518) 843-0020

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
355394NYMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
New York Oncology Hematology PC CurrentSince Dec 9, 2024 Accepting new patients
New York Oncology Hematology, P.C. CurrentSince Dec 9, 2024 Accepting new patients

Locations

1700 Riverfront Ctr
Amsterdam, NY 12010
Phone (518) 483-0020

3 Crossing Blvd
Ste 1
Halfmoon, NY 12065
Phone (518) 831-4434

449 Route 146
#101
Halfmoon, NY 12065
Phone (518) 373-3800

69 Prospect Ave
Hudson, NY 12534
Phone (212) 459-8173

896 Riverview Rd
Rexford, NY 12148
Phone (518) 399-4600

Organizations & group practices 2

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

Hospital & facility affiliations 11

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1724803200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762732800000",
    "number": "1861226243",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "449 ROUTE 146 STE 101",
            "city": "HALFMOON",
            "state": "NY",
            "postal_code": "120653239",
            "telephone_number": "518-373-3800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3 CROSSINGS BLVD",
            "address_2": "SUITE 1",
            "city": "CLIFTON PARK",
            "state": "NY",
            "postal_code": "12065",
            "telephone_number": "518-831-4434"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1700 Riverfront Ctr",
            "address_purpose": "LOCATION",
            "city": "Amsterdam",
            "state": "NY",
            "postal_code": "120104620",
            "country_code": "US",
            "telephone_number": "518-843-0020",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BAKER",
        "first_name": "MARISSA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-08-28",
        "last_updated": "2025-11-10",
        "certification_date": "2025-11-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NY",
            "license": "355394",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARISSA",
            "last_name": "KIRKER",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Clifton Park, NY

Sources for this page

Verify at the official NPI Registry.