Spencer Ilstrup, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

71417 Issued in TN

Practice address

Tristar Centennial Parthenon Pavilion 2401 Parman Place
Nashville, TN 37203

Phone

(615) 342-3965

NPI assigned

Mar 31, 2022

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 TN

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Psychiatry

Education

University of Minnesota Medical School, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

River Region Psychiatry Associates, LLCGroup PAC ID 1254491012, 118 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: spencer.ilstrup@hca1.eclinicaldirectplus.com

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.

• River Region Psychiatry Associates LLC

  • Psychiatry Physician
  • Montgomery, AL
  • NPI 1386891497

  TN

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1648684800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780444800000",
    "number": "1730829219",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "TRISTAR CENTENNIAL PARTHENON PAVILION",
            "address_2": "2401 PARMAN PLACE",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "37203",
            "telephone_number": "615-342-3965"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "TRISTAR CENTENNIAL PARTHENON PAVILION 2401 PARMAN PLACE",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "37203",
            "telephone_number": "615-342-3965"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ILSTRUP",
        "first_name": "SPENCER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-31",
        "last_updated": "2026-06-03",
        "certification_date": "2026-06-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "TN",
            "license": "71417",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer Cierra Ikola, BCBA
• Zachary Joseph Il'Giovine
• Tristin Ilg, NP
• Pamela Illesca, FNP
• Illuminate Chiropractic
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• Reza Imani-Shikhabadi, M.D., M.S.
• Frances Osatohanwen Imarhia

• Psychiatry Physician in Nashville, TN
• Providers in Nashville, TN by specialty
• Psychiatry Physician in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 3, 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.