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ROSAASEN FAMILY MEDICINE, INC.
NPI 1841636198
Clinic/Center - Primary Care in Thousand Oaks, CA

Active since May 14, 2013
187 E WILBUR RD # 100, THOUSAND OAKS, CA 91360(805) 492-1015(805) 492-2035 Get Directions Write a Review

NPPES record last updated: October 13, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 13, 2020, Jul 21, 2020, Jul 17, 2020 and 1 more (4 updates tracked since 2019).

About Rosaasen Family Medicine, Inc. NPPES

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

ROSAASEN FAMILY MEDICINE, INC. (NPI 1841636198) is a healthcare organization registered as a primary care in Thousand Oaks, California and active in the NPI registry since May 2013. The organization maintains a secondary practice location in Thousand Oaks and lists Jonathan Rosaasen, President, as its authorized official.

NPPES Registry Identity

NPI1841636198
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameROSAASEN FAMILY MEDICINE, INC.
Location Address187 E WILBUR RD # 100Thousand Oaks, CA 91360-5572
Mailing Address187 E Wilbur Rd # 100Thousand Oaks, CA 91360-5572 · (805) 492-1015 · Fax (805) 492-2035
Phone(805) 492-1015
Fax(805) 492-2035
Organization SubpartNo
Authorized OfficialJonathan RosaasenPresident · (805) 492-1015
Enumeration DateMay 14, 2013
Last NPPES UpdateOctober 13, 20204 updates tracked since enumeration
NPPES CertifiedOctober 13, 2020
✔ NPI 1841636198 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
187 E WILBUR RD # 100, Thousand Oaks, CA 91360
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Other Names 1

Doing Business AsRosaasen Family Medicine, Inc.

Secondary Practice Location 1

Location 1430 E Avenida De Los Arboles, Suite 204Thousand Oaks, CA 91360-3003 · Phone (805) 492-1015 · Fax (805) 492-2035

Other Identifiers 4

Other1073150744CA · Young
Other1528151352CA · Family Medicine
Other1497868376CA · Family Medicine
Other1174166714CA · Esgate

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rosaasen Family Medicine, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Rosaasen Family Medicine, Inc., which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Amanda Rosaasen, M.D.
Family Practice
NPI 1497868376
187 E WILBUR RD # 100
Thousand Oaks, CA 91360
(805) 492-1015
✔ PECOS✔ Accepts MedicareSame address
Jonathan Rosaasen, M.D.
Family Practice
NPI 1528171352
187 E WILBUR RD # 100
Thousand Oaks, CA 91360
(805) 492-1015
✔ PECOS✔ Accepts MedicareSame address
Kevin Dobbs, DNP/FNP
Nurse Practitioner
NPI 1134867369
187 E WILBUR RD STE 100
Thousand Oaks, CA 91360
(805) 492-1015
✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Rosaasen Family Medicine, Inc.'s NPI number?

The NPI number for Rosaasen Family Medicine, Inc. is 1841636198. It was assigned to this organization in the NPPES registry on May 14, 2013.

Where is Rosaasen Family Medicine, Inc. located?

Rosaasen Family Medicine, Inc. is located at 187 E Wilbur Rd # 100, Thousand Oaks, CA 91360. The listed phone number is (805) 492-1015.

What is Rosaasen Family Medicine, Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Rosaasen Family Medicine, Inc. enrolled in Medicare?

Yes. Rosaasen Family Medicine, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rosaasen Family Medicine, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Rosaasen Family Medicine, Inc., in Family Practice and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Rosaasen Family Medicine, Inc. was last updated on October 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.