Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John M Gunselman, D.O.
Urology Physician in Portland, OR · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194953125
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Registry record
Entity type Individual (Type 1)
Name John M Gunselman
Credential D.O.
Sex Male
Practice address 5050 Ne Hoyt St Ste 210, Portland, OR, 97213
Phone (503) 215-7628
Enumeration date Jun 29, 2009
Last updated in NPPES Feb 12, 2021
Taxonomy & licenses
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO 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.
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 John Gunselman?
John Gunselman is registered in NPPES with the primary taxonomy of Urology 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 → Jaime Kean Obstetrics & Gynecology Physician · Portland, OR NPI 1457346371 Lisa Johnson Obstetrics & Gynecology Physician · Portland, OR NPI 1942296579 Nathan Parker Obstetrics & Gynecology Physician · Portland, OR NPI 1578957791 Barbara Coiner Professional Counselor · Portland, OR NPI 1437506573 Mia Kane Advanced Practice Midwife · Portland, OR NPI 1780392944
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-12.