Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RUDOLPH H KNAACK MD
NPI 1225082001
Family Medicine in Oak Harbor, WA

Q: What is Rudolph Knaack's NPI number?

The NPI number for Rudolph Knaack is 1225082001. It was assigned to this individual provider in the NPPES registry on May 19, 2006.

Q: What is Rudolph Knaack's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Rudolph Knaack was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 19, 2006

275 SE CABOT DRIVE, SUITE B101, OAK HARBOR, WA 98277(360) 675-6648(360) 679-2487 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Rudolph H Knaack Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RUDOLPH H KNAACK MD (NPI 1225082001) is an individual family medicine provider in Oak Harbor, Washington, licensed in Washington (MD00013905) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1225082001

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameRUDOLPH H KNAACKCredential: MD

Location Address275 SE CABOT DRIVE, SUITE B101Oak Harbor, WA 98277

Mailing Address275 Se Cabot Drive, Suite B101Oak Harbor, WA 98277 · (360) 675-6648 · Fax (360) 679-2487

Phone(360) 675-6648

Fax(360) 679-2487

Sole ProprietorNo

Enumeration DateMay 19, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1225082001 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in WA · MD00013905

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

275 SE CABOT DRIVE, Oak Harbor, WA 98277

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Other Identifiers 1

Medicaid1719301WA

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DOUGLAS G LANGROCK MD

Family Medicine

275 SE CABOT DRIVE, B101
OAK HARBOR, WA 98277

Island County (360) 675-6648

DR. VALARIE A CICRICH DDS

Dentist (Dental Public Health)

275 SE CABOT DRIVE, SUITE A1
OAK HARBOR, WA 98277

Island County (360) 675-2222

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rudolph Knaack's NPI number?

The NPI number for Rudolph Knaack is 1225082001. It was assigned to this individual provider in the NPPES registry on May 19, 2006.

Where is Rudolph Knaack located?

Rudolph Knaack practices at 275 SE Cabot Drive Suite B101, Oak Harbor, WA 98277. The listed phone number is (360) 675-6648.

What is Rudolph Knaack's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for Rudolph Knaack was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.