Phillip Andrew Ostermann, PMHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

95026410 Issued in CA

Practice address

6005 Balfern Ave
Lakewood, CA 90713-1245

Phone

(562) 537-6731

NPI assigned

Aug 2, 2023

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

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, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Kevin Stephanoff, M.D., Inc.

  • Psychiatry Physician
  • Torrance, CA
  • NPI 1003547373
  Medicare reassignment
• Aleksandra Wirga, M.D., Inc.

  • Psychiatry Physician
  • Long Beach, CA
  • NPI 1861716953
  NPD (past)

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

{
    "created_epoch": "1690934400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777420800000",
    "number": "1689356305",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6005 BALFERN AVE",
            "city": "LAKEWOOD",
            "state": "CA",
            "postal_code": "907131245",
            "telephone_number": "562-537-6731"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6005 BALFERN AVE",
            "city": "LAKEWOOD",
            "state": "CA",
            "postal_code": "907131245",
            "telephone_number": "562-537-6731"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2600 Redondo Ave Ste 500",
            "address_purpose": "LOCATION",
            "city": "Long Beach",
            "state": "CA",
            "postal_code": "908062330",
            "country_code": "US",
            "telephone_number": "844-562-1212",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OSTERMANN",
        "first_name": "PHILLIP",
        "middle_name": "ANDREW",
        "credential": "PMHNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-08-02",
        "last_updated": "2026-04-29",
        "certification_date": "2026-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "CA",
            "license": "95026410",
            "primary": true
        },
        {
            "code": "163WP0809X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Psychiatric/Mental Health, Adult",
            "state": "CA",
            "license": "819814",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alexandra Ordaz
• Maridale R Orpilla, OTR
• Taylor Orr
• Abigail Ortiz
• Abigail Ortiz
• Virginia Otis
• Alexandrea Otomo
• Ezinne Ozoude
• P Gonzalez Dental Inc
• P.R.I.S.M. Institute Inc.

• Psychiatric/Mental Health Nurse Practitioner in Lakewood, CA
• Providers in Lakewood, CA by specialty
• Psychiatric/Mental Health Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 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.