NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eva Lillian Grunberg, MD

Pediatrics Physician in New Canaan, CT · enumerated 2006.

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

National Provider Identifier

1740357540

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Eva Lillian Grunberg
Credential MD
Sex Female
Practice address 173 East Avenue, New Canaan, CT, 06840
Fax (203) 801-2126
Enumeration date Nov 29, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 027537 (CT) 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
ZP292 Other - OXFORD
00127537900 Other - BLUE CARE FAMILY
0000121762001 Other - UHC
6053905 Other - CIGNA
010027537CT01 Other - ANTHEM BCBS
4239077 Other - AETNA

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 Eva Grunberg?
The National Provider Identifier (NPI) for Eva Grunberg is 1740357540, a Type 1 (individual) record in the CMS NPPES registry.
Where does Eva Grunberg practice?
The practice location on file with NPPES is in New Canaan, CT. 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.