NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Yun-Sen Ralph Chu, M.D.

Ophthalmology Physician in Bloomington, MN · enumerated 2005.

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

National Provider Identifier

1659367423

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Yun-Sen Ralph Chu
Credential M.D.
Sex Male
Practice address 9117 Lyndale Ave S, Bloomington, MN, 55420
Phone (952) 835-1235
Fax (952) 835-1092
Enumeration date Sep 27, 2005
Last updated in NPPES Aug 16, 2022

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 38792 (MN) 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
288517400 Medicaid MN -

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

Where does Yun-Sen Chu practice?
The practice location on file with NPPES is in Bloomington, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Yun-Sen Chu?
The National Provider Identifier (NPI) for Yun-Sen Chu is 1659367423, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-16.