NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer Michelle Sardone-Ponnappan, M.D.

Internal Medicine Physician in Berwyn, IL · enumerated 2007.

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

National Provider Identifier

1851599583

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Jennifer Michelle Sardone-Ponnappan
Credential M.D.
Sex Female
Practice address 3249 Oak Park Ave, Berwyn, IL, 60402
Fax (708) 783-2452
Enumeration date Jul 3, 2007
Last updated in NPPES Feb 3, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036124549 (IL) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 45746 (CO) Secondary
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

Is NPI 1851599583 active?
Yes, as of the latest NPPES snapshot, NPI 1851599583 is active (record last updated 2020-02-03).
How do I verify Jennifer Sardone-Ponnappan's NPI record?
Cross-check NPI 1851599583 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-03.