Joan Wamahiu, APN, PMHNP-BC

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

26NJ15113500 Issued in NJ

Practice address

2 University PLZ
Hackensack, NJ 07601-6202

Phone

(212) 203-1773

Fax

(646) 665-4427

NPI assigned

Aug 15, 2024

Sex

Female

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 NJ, MA2 enrollments

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 2

Specialty

Nurse Practitioner

Education

Other, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Rivia Medical PLLCGroup PAC ID 4880009943, 67 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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, NJ

  Medicare reassignment Care Compare group NPD
• Rivia Medical PLLC

  • Nutritionist
  • New York, NY
  • NPI 1871280818
  NPD (past)

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

{
    "created_epoch": "1723680000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775260800000",
    "number": "1063244267",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28 VALLEY RD OFC 139",
            "city": "MONTCLAIR",
            "state": "NJ",
            "postal_code": "070422709"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2 UNIVERSITY PLZ",
            "city": "HACKENSACK",
            "state": "NJ",
            "postal_code": "076016202",
            "telephone_number": "212-203-1773",
            "fax_number": "646-665-4427"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WAMAHIU",
        "first_name": "JOAN",
        "credential": "APN, PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-08-15",
        "last_updated": "2026-04-04",
        "certification_date": "2026-04-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "NJ",
            "license": "26NJ15113500",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lauren Catherine Wallace, PHD
• Donna Wallerstein, MS
• Patricia A Walters, RN APN C
• Temima Waltuch, MD
• Daniel Walzman, M.D.
• Paul X Wang, M.D.
• Mary Jane Warden, MD
• Adrienne Warrick, PHYSICAL THERAPIST
• Juelle Washington, LMHC
• Carrie Brooke Wasserman, M.D.

• Psychiatric/Mental Health Nurse Practitioner in Hackensack, NJ
• Providers in Hackensack, NJ by specialty
• Psychiatric/Mental Health Nurse Practitioner in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 4, 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.
• 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.