NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Karen A Altay, M.D.

Gynecology Physician in Bloomingdale, IL · enumerated 2007.

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

National Provider Identifier

1518097120

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Karen A Altay
Credential M.D.
Sex Female
Practice address Bloomingdale, IL, 60108
Phone (630) 893-0900
Fax (630) 893-0922
Enumeration date Mar 6, 2007
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 036-061735 (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 Karen Altay?
The National Provider Identifier (NPI) for Karen Altay is 1518097120, a Type 1 (individual) record in the CMS NPPES registry.
Where does Karen Altay practice?
The practice location on file with NPPES is in Bloomingdale, 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.