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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deborah Geismar, M.D.

Family Medicine Physician in Park Ridge, IL · enumerated 2006.

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

National Provider Identifier

1669558037

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Registry record

Entity type Individual (Type 1)
Name Deborah Geismar
Credential M.D.
Sex Female
Practice address 10 N Cumberland Ave, Park Ridge, IL, 60068
Phone (847) 825-0300
Fax (847) 825-1825
Enumeration date Oct 28, 2006
Last updated in NPPES Jun 27, 2022

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036073437 (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
036073437 Medicaid IL -
01623792 Other IL BLUE SHIELD BLUE CROSS

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 NPI 1669558037 active?
Yes, as of the latest NPPES snapshot, NPI 1669558037 is active (record last updated 2022-06-27).
How do I verify Deborah Geismar's NPI record?
Cross-check NPI 1669558037 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-27.