John Thomas Olstad, PMHNP-BC

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

14294-33 Issued in WI

Practice address

5500 W Vliet St
Milwaukee, WI 53208-2120

Phone

(414) 928-1414

Fax

(414) 928-1415

NPI assigned

Aug 24, 2023

Last updated

Sep 27, 2026By the provider in NPPES

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 WI

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

Medicare enrollment (NPD)

Enrolled

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Milwaukee Behavioral Health LLC

  dba Granite Hills Hospital

  • Psychiatric Hospital
  • Milwaukee, WI
  • NPI 1497324115

  Psychiatric/Mental Health

  Medicare reassignment NPD
• Inner Haven LLC

  • Psychiatry Physician
  • Milwaukee, WI
  • NPI 1871417055
  Authorized official Same address or phone
• Blooming Minds Psychotherapy LLC

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Sheboygan, WI
  • NPI 1780250035
  NPD (past)

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

{
    "created_epoch": "1692835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790467200000",
    "number": "1154105500",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1433 E OKLAHOMA AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532072430",
            "telephone_number": "414-928-1414",
            "fax_number": "414-928-1415"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5500 W VLIET ST",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532082120",
            "telephone_number": "414-928-1414",
            "fax_number": "414-928-1415"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OLSTAD",
        "first_name": "JOHN",
        "middle_name": "THOMAS",
        "credential": "PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-08-24",
        "last_updated": "2026-09-27",
        "certification_date": "2026-09-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "WI",
            "license": "14294-33",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Monica Lee Olson, PMHNP
• Nicholas D Olson
• Nicholas John Olson, PHARMD
• Sarah Melissa Olson, RN
• Hunter W Olstad
• Jennifer Marie Olszewski-Garcia, LPC
• Abigail Olszewski, PHARMD
• Oludotun Olubobola
• Mohamed Farah Omar
• Tanya Omar, DO

• Psychiatric/Mental Health Nurse Practitioner in Milwaukee, WI
• Providers in Milwaukee, WI by specialty
• Psychiatric/Mental Health Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 27, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.