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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Sun-Yung Bak, D.D.S.

Prosthodontics in Ann Arbor, MI · enumerated 2006.

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

National Provider Identifier

1255343075

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Registry record

Entity type Individual (Type 1)
Name Dr. Sun-Yung Bak
Credential D.D.S.
Sex Female
Practice address Ann Arbor, MI, 48109
Phone (734) 764-5527
Enumeration date Aug 12, 2006
Last updated in NPPES Sep 30, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

122300000X Dentist Dental Providers · License 00132 (NC) Secondary
1223G0001X General Practice Dentistry Dental Providers · License 047799 (NY) Secondary
1223P0700X Prosthodontics Dental Providers · License 2901022863 (MI) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
00132 Other NC NC STATE BOARD OF DENTAL EXAMINERS
047799 Other NY NY LICENSE

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 Sun-Yung Bak practice?
The practice location on file with NPPES is in Ann Arbor, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sun-Yung Bak?
The National Provider Identifier (NPI) for Sun-Yung Bak is 1255343075, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-30.