Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Brian H Kumasaka, MD
Dermatology Physician in Renton, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801971262
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Registry record
Entity type Individual (Type 1)
Name Brian H Kumasaka
Credential MD
Sex Male
Practice address 660 Sw 39th St, Ste 150, Renton, WA, 98057
Phone (425) 793-4707
Fax (425) 656-4046
Enumeration date Oct 26, 2006
Last updated in NPPES Nov 14, 2016
Taxonomy & licenses
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD00027670 (WA) 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 |
|---|---|---|---|
| 5338KU | Other | WA | REGENCE |
| 0153356 | Other | WA | L&I |
| 070015915 | Other | WA | RR MEDICARE |
| 8154429 | Medicaid | WA | - |
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.
Frequently asked questions
How do I verify Brian Kumasaka's NPI record?
Cross-check NPI 1801971262 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1801971262 active?
Yes, as of the latest NPPES snapshot, NPI 1801971262 is active (record last updated 2016-11-14).
Other providers at this practice address
Browse all → Khue Dung Nguyen Internal Medicine Physician · Renton, WA NPI 1952369498 Judith Fleming Internal Medicine Physician · Renton, WA NPI 1760593362 Ellendee Pepper Dermatology Physician · Renton, WA NPI 1861577223 Theresa Tran Endocrinology, Diabetes & Metabolism Physician · Renton, WA NPI 1992835607 Bhavana Bajracharya Endocrinology, Diabetes & Metabolism Physician · Renton, WA NPI 1952647364 Austin Hogland Physician Assistant · Renton, WA NPI 1003213166 Megan Dippe Physician Assistant · Renton, WA NPI 1508258427
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-14.