Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Marvin Duane Dreessen, DC

Chiropractor in Port Orchard, WA · enumerated 2006.

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

National Provider Identifier

1619032414

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Registry record

Entity type Individual (Type 1)

Name Mr. Marvin Duane Dreessen

Credential DC

Sex Male

Practice address 2068 Se Sedgwick Road, Port Orchard, WA, 98366

Phone (360) 876-2550

Fax (360) 876-2556

Enumeration date Dec 22, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 788 (WA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
00913501	Other	WA	GROUP HEALTH
12646	Other	WA	DEPT OF L&I
2237501	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Marvin Dreessen?

The National Provider Identifier (NPI) for Marvin Dreessen is 1619032414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marvin Dreessen practice?

The practice location on file with NPPES is in Port Orchard, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.