NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nidhi Aggarwal, M.D.

Internal Medicine Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1740368208

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Nidhi Aggarwal
Credential M.D.
Sex Female
Practice address 820 S Wood St, Mc 793, Chicago, IL, 60612
Phone (312) 996-6736
Enumeration date Nov 1, 2006
Last updated in NPPES Jan 20, 2011

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036122556 (IL) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 48794-020 (WI) 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

How do I verify Nidhi Aggarwal's NPI record?
Cross-check NPI 1740368208 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1740368208 active?
Yes, as of the latest NPPES snapshot, NPI 1740368208 is active (record last updated 2011-01-20).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-20.