Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert H. Chun, M.D.

Q: What is the NPI number for Robert Chun?

The National Provider Identifier (NPI) for Robert Chun is 1861651390, a Type 1 (individual) record in the CMS NPPES registry.

Pediatric Otolaryngology Physician in Milwaukee, WI · enumerated 2008.

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

National Provider Identifier

1861651390

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert H. Chun

Credential M.D.

Sex Male

Practice address 9000 W Wisconsin Ave, Pediatric Otolaryngology, Milwaukee, WI, 53226

Phone (414) 266-8383

Fax (414) 266-6963

Enumeration date Jun 9, 2008

Last updated in NPPES Mar 1, 2024

Taxonomy & licenses

207YP0228X Pediatric Otolaryngology Physician Allopathic & Osteopathic Physicians · License 51952 (WI) Primary

207YP0228X Pediatric Otolaryngology Physician Allopathic & Osteopathic Physicians · License MD036517 (DC) 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

What is the NPI number for Robert Chun?

The National Provider Identifier (NPI) for Robert Chun is 1861651390, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Chun practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-01.