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DR. ROBERT OUWENDIJK M.D.
NPI 1578627725
Internal Medicine - Medical Oncology in Ventura, CA

Active since December 21, 2006
3291 LOMA VISTA RD, VENTURA, CA 93003(805) 652-6556 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Robert Ouwendijk M.d. NPPES

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

DR. ROBERT OUWENDIJK M.D. (NPI 1578627725) is an individual medical oncology provider in Ventura, California, licensed in California (G10155) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1578627725
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. ROBERT OUWENDIJKCredential: M.D.
Location Address3291 LOMA VISTA RDVentura, CA 93003-3099
Mailing Address3291 Loma Vista RdVentura, CA 93003-3099 · (805) 652-6556
Phone(805) 652-6556
Sole ProprietorNo
Enumeration DateDecember 21, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1578627725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in CA · G10155
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
3291 LOMA VISTA RD, Ventura, CA 93003
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Other Identifiers 1

Medicare UPINA37873CA

Other Providers at the Same Location NPPES 20

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

ANNA MIKHAILOVSKY M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6228
DR. BRAD S ADLER M.D.
Pathology (Anatomic Pathology)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6000
DR. RAMON GOMEZ M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556
FRANCES O'SULLIVAN
Psychiatry & Neurology (Psychiatry)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556
DR. MARISA SPORTELLI M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556
DR. STEPHANUS R PHILIP MD
Hospitalist
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6075
MS. EUGENIA S H PANG OTRL
Occupational Therapist
3291 LOMA VISTA RD, VENTURA COUNTY MEDICAL CENTER
VENTURA, CA 93003
Ventura County (805) 648-9980
DR. KEVIN ANDREW BARKLEY M.D.
Anesthesiology
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 642-8565

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 Robert Ouwendijk's NPI number?

The NPI number for Robert Ouwendijk is 1578627725. It was assigned to this individual provider in the NPPES registry on December 21, 2006.

Where is Robert Ouwendijk located?

Robert Ouwendijk practices at 3291 Loma Vista Rd, Ventura, CA 93003. The listed phone number is (805) 652-6556.

What is Robert Ouwendijk's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

When was this NPI record last updated?

The NPPES record for Robert Ouwendijk was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.