Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kimberly Ann Muczynski, MD-PHD
Nephrology Physician in Seattle, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336249275
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Kimberly Ann Muczynski
Credential MD-PHD
Sex Female
Practice address University of Washington Medical Center, 1959 Ne Pacific Avenue, Seattle, WA, 98195
Phone (206) 598-6190
Enumeration date Sep 22, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Kimberly Muczynski?
Kimberly Muczynski is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Manuel Ferreira Neurological Surgery Physician · Seattle, WA NPI 1164497202 David Tretheway Anatomic Pathology Physician · Seattle, WA NPI 1073606117 Jasdeep Gill Psychiatry Physician · Seattle, WA NPI 1629574496 Oliver Mcelvaney Critical Care Medicine (Internal Medicine) Physician · Seattle, WA NPI 1235816224
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.