Dr. Mark N Osterberg, DDS

Dr. Mark N Osterberg is a General Practice Dentistry provider (Dentist) practicing in Everett, WA, registered in the NPPES registry with NPI 1366454647 since 2006. The credential DDS stands for Doctor of Dental Surgery.

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NPI	1366454647
Entity type	Individual (Type 1)
Name	Dr. Mark N Osterberg
Credential	DDS
Sex	Male
Practice address	1426 35TH ST, Everett, WA, 98201
Phone	4252583509
Fax	4252584939
Enumeration date	2006-08-13
Last updated in NPPES	2008-02-07

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	DE00010466	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: Mark Osterberg, DDS
NPI: 1366454647
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 1426 35TH ST, Everett, WA, 98201

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1154443943	Camille Murray	Individual	General Practice Dentistry	Everett, WA
1255540811	Jason Chang DDS Pllc	Organization	General Practice Dentistry	Everett, WA
1972217784	Richards Family Counseling LLC	Organization	Mental Health Counselor	Everett, WA
1629926415	Mark Osterberg DDS & Camille Murray DDS, Pllc	Organization	Dental Clinic/Center	Everett, WA

Verify this record

Cross-check NPI 1366454647 against the authoritative CMS record: view Dr. Mark N Osterberg 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

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 Mark Osterberg?

Mark Osterberg is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-02-07.