Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Sumikawa, D.D.S.

Pediatric Dentistry in Honolulu, HI · enumerated 2007 · practices at Bert M. Sumikawa, D.D.S., Inc..

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

National Provider Identifier

1801928643

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Sumikawa

Credential D.D.S.

Sex Male

Practice address 1026 S King St, Honolulu, HI, 96814

Phone (808) 593-8828

Fax (808) 596-0248

Enumeration date Mar 9, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223P0221X Pediatric Dentistry Dental Providers · License DT-1912 (HI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

Is NPI 1801928643 active?

Yes, as of the latest NPPES snapshot, NPI 1801928643 is active (record last updated 2007-07-08).

How do I verify Mark Sumikawa's NPI record?

Cross-check NPI 1801928643 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

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Bert M. Sumikawa, D.D.S., Inc. Pediatric Dentistry · Honolulu, HI NPI 1669538914 David Sumikawa Pediatric Dentistry · Honolulu, HI NPI 1508916453 Bert Sumikawa Pediatric Dentistry · Honolulu, HI NPI 1073787057

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.