Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Jane Thomas, M.D.

Q: What is the NPI number for Mary Thomas?

The National Provider Identifier (NPI) for Mary Thomas is 1821160888, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Kankakee, IL · enumerated 2006.

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

National Provider Identifier

1821160888

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mary Jane Thomas

Credential M.D.

Sex Female

Practice address 100 E Jeffery St, Shapiro Center, Kankakee, IL, 60901

Phone (815) 939-8720

Fax (815) 939-8383

Enumeration date Nov 14, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mary Thomas?

The National Provider Identifier (NPI) for Mary Thomas is 1821160888, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Thomas practice?

The practice location on file with NPPES is in Kankakee, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.