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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

TIMOTHY HORN
NPI 1144136904
Psychologist - Health Service in Pittsburgh, PA

Active since August 21, 2026
4401 PENN AVE, PITTSBURGH, PA 15224(740) 310-7859 Get Directions Write a Review

NPPES record added: August 21, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Timothy Horn NPPES

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

TIMOTHY HORN (NPI 1144136904) is an individual health service provider in Pittsburgh, Pennsylvania and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1144136904
Entity TypeIndividualMale
Primary Taxonomy103TH0100X
Provider Legal NameTIMOTHY HORN
Location Address4401 PENN AVEPittsburgh, PA 15224-1334
Mailing Address4401 Penn AvePittsburgh, PA 15224-1334 · (740) 310-7859
Phone(740) 310-7859
Sole ProprietorNo
Enumeration DateAugust 21, 2026
NPPES CertifiedAugust 21, 2026
✔ NPI 1144136904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Health ServiceBehavioral Health & Social Service Providers
Taxonomy Code103TH0100X
Definition
A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).
4401 PENN AVE, Pittsburgh, PA 15224
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Other Providers at the Same Location NPPES 20

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

KARA MARIE MARANGONI CRNP
Nurse Practitioner (Neonatal, Critical Care)
4401 PENN AVE
PITTSBURGH, PA 15224
Allegheny County (412) 692-5030
ALLISON WILLIAMS
Pediatrics
4401 PENN AVE, AOB SUITE 5400
PITTSBURGH, PA 15224
Allegheny County (412) 692-5285
FRANCES FLEDDERMANN
Nurse Practitioner (Neonatal)
4401 PENN AVE
PITTSBURGH, PA 15224
Allegheny County (412) 692-5030
PREETHA KEYA SINHA MD
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
4401 PENN AVE
PITTSBURGH, PA 15224
Allegheny County (412) 692-5325
CHRISTIN LAWLER DEAL M.D.
Allergy & Immunology
4401 PENN AVE
PITTSBURGH, PA 15224
Allegheny County (404) 226-4169
ANNA ELISA HEIPERTZ
Student in an Organized Health Care Education/Training Program
4401 PENN AVE, AOB BUILDING, SUITE 5400
PITTSBURGH, PA 15224
Allegheny County (412) 692-5285
DANIELLE BROWNING
Pediatrics (Neonatal-Perinatal Medicine)
4401 PENN AVE, AOB SUITE 5400
PITTSBURGH, PA 15224
Allegheny County (412) 692-5285
ADESH SURESH RANGANNA
Student in an Organized Health Care Education/Training Program
4401 PENN AVE
PITTSBURGH, PA 15224
Allegheny County (412) 692-5135

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 Timothy Horn's NPI number?

The NPI number for Timothy Horn is 1144136904. It was assigned to this individual provider in the NPPES registry on August 21, 2026.

Where is Timothy Horn located?

Timothy Horn practices at 4401 Penn Ave, Pittsburgh, PA 15224. The listed phone number is (740) 310-7859.

What is Timothy Horn's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Health Service, with taxonomy code 103TH0100X.

When was this NPI record last updated?

The NPPES record for Timothy Horn was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.