Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Colin T Iosso, MD
Neurology Physician in Tacoma, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538137484
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Registry record
Entity type Individual (Type 1)
Name Colin T Iosso
Credential MD
Sex Male
Practice address 1608 S J St Fl 5, Tacoma, WA, 98405
Phone (253) 274-7505
Enumeration date Mar 8, 2006
Last updated in NPPES Feb 28, 2025
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD60201685 (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 |
|---|---|---|---|
| 0301450 | Other | WA | STATE L&I |
| 2011519 | 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 Colin Iosso's NPI record?
Cross-check NPI 1538137484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1538137484 active?
Yes, as of the latest NPPES snapshot, NPI 1538137484 is active (record last updated 2025-02-28).
Other providers at this practice address
Browse all → Jay Erickson Neurology Physician · Tacoma, WA NPI 1114990587 Douglas Sorensen Otolaryngology Physician · Tacoma, WA NPI 1669448346 Bernard Baduria Audiologist · Tacoma, WA NPI 1033167523 Lee Zarella Audiologist · Tacoma, WA NPI 1588612808 Lorin Freedman Neurology Physician · Tacoma, WA NPI 1467409920 Monica Nelson Adult Health Nurse Practitioner · Tacoma, WA NPI 1326126186 William Miele Neurological Surgery Physician · Tacoma, WA NPI 1659594083 Justin Pavlovich Plastic Surgery within the Head & Neck (Otolaryngology) Physician · Tacoma, WA NPI 1528238805
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-28.