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Dr. Ryan Douglass Herrington, MD MPH

Addiction Medicine (Preventive Medicine) Physician in Olympia, WA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255433819

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Registry record

Entity type Individual (Type 1)
Name Dr. Ryan Douglass Herrington
Credential MD MPH
Sex Male
Practice address 203 4th Ave E Ste 501, Olympia, WA, 98501
Phone (614) 256-5071
Enumeration date Sep 3, 2006
Last updated in NPPES Feb 24, 2023

Taxonomy & licenses

2083P0901X Public Health & General Preventive Medicine Physician Allopathic & Osteopathic Physicians · License 60736138 (WA) Secondary
2083A0300X Addiction Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License MD60736138 (WA) Primary

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.

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Frequently asked questions

Where does Ryan Herrington practice?
The practice location on file with NPPES is in Olympia, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ryan Herrington?
The National Provider Identifier (NPI) for Ryan Herrington is 1255433819, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-24.