Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter F Whitington, M.D.

Transplant Surgery Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1164477345

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter F Whitington

Credential M.D.

Sex Male

Practice address 2300 Children'S Plaza, Box 57, Chicago, IL, 60614

Phone (773) 880-4643

Fax (773) 975-8671

Enumeration date May 24, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

204F00000X Transplant Surgery Physician Allopathic & Osteopathic Physicians Primary

2080P0206X Pediatric Gastroenterology Physician Allopathic & Osteopathic Physicians 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.

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Frequently asked questions

Where does Peter Whitington practice?

The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Peter Whitington?

The National Provider Identifier (NPI) for Peter Whitington is 1164477345, a Type 1 (individual) record in the CMS NPPES registry.

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Jeffrey Brown Pediatric Gastroenterology Physician · Chicago, IL NPI 1295843084

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.