TESSA RAE BARCLAY MD
NPI 1699237651
Pediatrics - Pediatric Infectious Diseases in Pittsburgh, PA

Q: What is Tessa Barclay's NPI number?

The NPI number for Tessa Barclay is 1699237651. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Q: What is Tessa Barclay's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Q: When was this NPI record last updated?

The NPPES record for Tessa Barclay was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.

Active since April 01, 2019PECOS Enrolled

3601 5TH AVE BLDG SUITE700, PITTSBURGH, PA 15213(412) 647-7228 Get Directions Write a Review

NPPES record last updated: February 2, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 2, 2026, Aug 14, 2025, Apr 1, 2019 (3 updates tracked since 2019).

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About Tessa Rae Barclay Md NPPES

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

TESSA RAE BARCLAY MD (NPI 1699237651) is an individual pediatric infectious diseases provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD489660) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Vermont College Of Medicine (2019).

NPPES Registry Identity

NPI1699237651

Entity TypeIndividualFemale

Primary Taxonomy2080P0208X

Provider Legal NameTESSA RAE BARCLAYCredential: MD

Location Address3601 5TH AVE BLDG SUITE700Pittsburgh, PA 15213-3403

Mailing Address2 Hot Metal St Bldg 3Pittsburgh, PA 15203-2348

Phone(412) 647-7228

Sole ProprietorNo

Medical School CMSUniversity Of Vermont College Of MedicineGraduated 2019

Enumeration DateApril 1, 2019

Last NPPES UpdateFebruary 2, 20263 updates tracked since enumeration

NPPES CertifiedFebruary 2, 2026

✔ NPI 1699237651 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians

Taxonomy Code2080P0208X

Licenses✔ Licensed in PA · MD489660✔ Licensed in AZ · 77365

Definition

A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.

3601 5TH AVE BLDG SUITE700, Pittsburgh, PA 15213

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Secondary Practice Locations 2

Location 15555 W Thunderbird RdGlendale, AZ 85306-4622 · Phone (602) 865-5561

Location 21400 S Dobson RdMesa, AZ 85202-4707 · Phone (480) 412-3000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tessa Rae Barclay Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4486155058

PECOS Enrollment IDI20250827001988, I20250905002511, I20260218001775

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 7

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

ALEX MARSHAL TRZEBUCKI MD

Internal Medicine (Infectious Disease)