Courtney L Slater, PHD

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PS017902 Issued in PA

Practice address

1420 Walnut St Ste 1010
Philadelphia, PA 19102-4010

Phone

(267) 225-1522

NPI assigned

Jul 11, 2008

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

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

Green means eligible to order or refer.

Opted out of Medicare

Yes, effective Jan 1, 2016 through Jan 1, 2028

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

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.

• Courtney L Slater LLC

  • Clinical Psychologist
  • Philadelphia, PA
  • NPI 1528980299
  NPD (past) Authorized official
• Pike Creek Psychological Center

  • Psychologist
  • Newark, DE
  • NPI 1255407698

  Mental Health

  NPD (past)

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

{
    "created_epoch": "1215734400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1245494905",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1420 WALNUT ST STE 1010",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191024010",
            "telephone_number": "267-225-1522"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1420 WALNUT ST STE 1010",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191024010",
            "telephone_number": "267-225-1522"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLATER",
        "first_name": "COURTNEY",
        "middle_name": "L",
        "credential": "PHD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2008-07-11",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "PA",
            "license": "PS017902",
            "primary": true
        },
        {
            "code": "225400000X",
            "taxonomy_group": "",
            "desc": "Rehabilitation Practitioner",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Casey Lauren Slaninabrooks, CRNP
• Gail Slap, M.D.
• Alonia Slappy, MA, LPC
• Slate Psychotherapy LLC
• Sarah Sadie Slate
• Rachel Slater, LSW
• Teresa Slater, CRNP
• Caroline Ann Slattery, PA-C
• James Liam Slavin
• Kerri Ann Slavin, OTR

• Clinical Psychologist in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Clinical Psychologist in Pennsylvania

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

Verify at the official NPI Registry.