NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marcy Dering, M.D.

Family Medicine Physician in La Grange, IL · enumerated 2007.

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

National Provider Identifier

1689875783

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Marcy Dering
Credential M.D.
Sex Female
Practice address 23 Calendar Ave, La Grange, IL, 60525
Enumeration date May 29, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207Q00000X Family 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

Where does Marcy Dering practice?
The practice location on file with NPPES is in La Grange, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marcy Dering?
The National Provider Identifier (NPI) for Marcy Dering is 1689875783, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

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