Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joan Evelyn Tregoning, RDH
Dental Hygienist in Kent, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669545695
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Joan Evelyn Tregoning
Credential RDH
Sex Female
Practice address 1404 Central Ave S, Kent, WA, 98032
Phone (206) 296-4586
Fax (206) 205-8012
Enumeration date Nov 16, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 5900915 | 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
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 Joan Tregoning?
Joan Tregoning is registered in NPPES with the primary taxonomy of Dental Hygienist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Margaret Terp Dental Hygienist · Kent, WA NPI 1831262328 Marilyn Reusch Dental Hygienist · Kent, WA NPI 1821161233 L.Cynthia Fuller Dental Hygienist · Kent, WA NPI 1265505127 Rebecca Leslie Registered Dietitian · Kent, WA NPI 1104992189 Sandie Leistiko Clinical Social Worker · Kent, WA NPI 1336201730 Beth Worges Mental Health Counselor · Kent, WA NPI 1689736084 Gwen Olson Professional Counselor · Kent, WA NPI 1447313457 Elizabeth Newell Professional Counselor · Kent, WA NPI 1861697344
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.