Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Theresa Catherine Gandor, M.D.

Emergency Medicine Physician in Arlington Heights, IL · enumerated 2008.

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

National Provider Identifier

1164674131

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Registry record

Entity type Individual (Type 1)

Name Dr. Theresa Catherine Gandor

Credential M.D.

Sex Female

Practice address 800 W Central Rd, Northwest Community Hospital - Emergency Dept., Arlington Heights, IL, 60005

Phone (847) 618-3040

Fax (847) 618-3049

Enumeration date Oct 21, 2008

Last updated in NPPES Dec 10, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 01083194A (IN) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036121957 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036121957	Other	IL	036121957 - IL STATE PERMANENT PHYSICIAN LICENSE NUMBER

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Theresa Gandor?

Theresa Gandor is registered in NPPES with the primary taxonomy of Emergency Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-10.