NPI Portal NPI Lookup & Verification

Dr. Marvin R Nelson, DDS

Dr. Marvin R Nelson is a General Practice Dentistry provider (Dentist) practicing in Edmonds, WA, registered in the NPPES registry with NPI 1639260490 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1639260490
Entity type Individual (Type 1)
Name Dr. Marvin R Nelson
Credential DDS
Sex Male
Practice address Edmonds, WA, 98020
Phone 4257757325
Fax 4257746105
Enumeration date 2006-09-27
Last updated in NPPES 2022-07-21

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
1223G0001X General Practice Dentistry Primary 5192 WA

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details
Provider: Marvin Nelson, DDS
NPI: 1639260490
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: Edmonds, WA, 98020

Verify this record

Cross-check NPI 1639260490 against the authoritative CMS record: view Dr. Marvin R Nelson on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

How do I verify Marvin Nelson's NPI record?
Cross-check NPI 1639260490 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639260490 active?
Yes — as of the latest NPPES snapshot, NPI 1639260490 is active (record last updated 2022-07-21).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-07-21.