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Tessa Rae Barclay, MD

Pediatric Infectious Diseases Physician in Pittsburgh, PA · enumerated 2019.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1699237651

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Registry record

Entity type Individual (Type 1)
Name Tessa Rae Barclay
Credential MD
Sex Female
Practice address 3601 5th Ave Bldg Suite700, Pittsburgh, PA, 15213
Phone (412) 647-7228
Enumeration date Apr 1, 2019
Last updated in NPPES Feb 2, 2026

Taxonomy & licenses

2080P0208X Pediatric Infectious Diseases Physician Allopathic & Osteopathic Physicians · License MD489660 (PA) Primary
2080P0208X Pediatric Infectious Diseases Physician Allopathic & Osteopathic Physicians · License 77365 (AZ) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Tessa Barclay practice?
The practice location on file with NPPES is in Pittsburgh, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tessa Barclay?
The National Provider Identifier (NPI) for Tessa Barclay is 1699237651, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-02.