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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

COURTNEY L SLATER PHD
NPI 1245494905
Psychologist - Clinical in Philadelphia, PA

Active since July 11, 2008Opted out of Medicare · through Jan 1, 2028
1420 WALNUT ST STE 1010, PHILADELPHIA, PA 19102(267) 225-1522 Get Directions Write a Review

NPPES record last updated: July 27, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Courtney L Slater Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

COURTNEY L SLATER PHD (NPI 1245494905) is an individual clinical provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (PS017902) and active in the NPI registry since July 2008. She has opted out of Medicare through January 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1245494905
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameCOURTNEY L SLATERCredential: PHD
Location Address1420 WALNUT ST STE 1010Philadelphia, PA 19102-4010
Mailing Address1420 Walnut St Ste 1010Philadelphia, PA 19102-4010 · (267) 225-1522
Phone(267) 225-1522
Sole ProprietorYes
Enumeration DateJuly 11, 2008
Last NPPES UpdateJuly 27, 2026
NPPES CertifiedJuly 27, 2026
✔ NPI 1245494905 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in PA · PS017902
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
Also ListedRehabilitation PractitionerTaxonomy 225400000X
1420 WALNUT ST STE 1010, Philadelphia, PA 19102
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

Courtney L Slater Phd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2016 through January 1, 2028.

Opt-Out Effective DateJanuary 1, 2016
Opt-Out In Effect ThroughJanuary 1, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$180.99 typical visit price
range $59.88 – $180.99
Typical copayment $45.24 (range $14.97 – $45.24)
Most-billed visit code 99205
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. MARGAUX HART KETNER MA
Counselor (Mental Health)
1420 WALNUT ST STE 1010
PHILADELPHIA, PA 19102
Philadelphia County (267) 587-7006
COURTNEY L SLATER LLC
Psychologist (Clinical)
1420 WALNUT ST STE 1010
PHILADELPHIA, PA 19102
Philadelphia County (267) 225-1522

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Courtney Slater's NPI number?

The NPI number for Courtney Slater is 1245494905. It was assigned to this individual provider in the NPPES registry on July 11, 2008.

Where is Courtney Slater located?

Courtney Slater practices at 1420 Walnut St Ste 1010, Philadelphia, PA 19102. The listed phone number is (267) 225-1522.

What is Courtney Slater's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Courtney Slater enrolled in Medicare?

No. Courtney Slater has opted out of Medicare through January 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Courtney Slater was last updated on July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.