Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary E. Bretscher, M.D.

Hematology & Oncology Physician in Springfield, IL · enumerated 2006.

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

National Provider Identifier

1073623336

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Registry record

Entity type Individual (Type 1)

Name Mary E. Bretscher

Credential M.D.

Sex Female

Practice address 900 N. 1st Street, Springfield, IL, 62702

Phone (217) 528-7541

Fax (217) 527-2830

Enumeration date Aug 30, 2006

Last updated in NPPES May 20, 2020

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 036-083672 (IL) 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 Bretscher?

The National Provider Identifier (NPI) for Mary Bretscher is 1073623336, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Bretscher practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-20.