Tristan Isacksen, NP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

APRN10005192 Issued in MA

Practice address

186 Lincoln St Ste 214
Boston, MA 02111-2403

Phone

(212) 203-1773

Fax

(646) 665-4427

NPI assigned

Oct 16, 2025

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 MA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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.

• Rivia Medical PLLC

  • Psychiatric/Mental Health Nurse Practitioner
  • New York, NY
  • NPI 1134644032

  MA

  Medicare reassignment NPD
• Rivia Medical PLLC

  • Nutritionist
  • New York, NY
  • NPI 1871280818
  NPD

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

{
    "created_epoch": "1760572800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765152000000",
    "number": "1376419283",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "274 MADISON AVE RM 1501",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100160701",
            "telephone_number": "212-203-1773",
            "fax_number": "646-665-4427"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "186 LINCOLN ST STE 214",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021112403",
            "telephone_number": "212-203-1773",
            "fax_number": "646-665-4427"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ISACKSEN",
        "first_name": "TRISTAN",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-10-16",
        "last_updated": "2025-12-08",
        "certification_date": "2025-12-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "MA",
            "license": "APRN10005192",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Arielle Isaacson
• Ella May Isaacson, CNO
• Colleen G Isabelle
• Andrew Isac
• Maksim Isachanka, M.D.
• Federica Isaia
• Steven Jay Isakoff, MD PHD
• Imari-Ashley Palma Isaksen, PHD
• Ameesh M Isath, M.B.B.S
• Nicolas Isaza Valencia, MD

• Psychiatric/Mental Health Nurse Practitioner in Boston, MA
• Providers in Boston, MA by specialty
• Psychiatric/Mental Health Nurse Practitioner in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 8, 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.