PATHOLOGY MEDICAL GROUP OF RIVERSIDE
NPI 1417016833
Pathology - Anatomic Pathology & Clinical Pathology in Riverside, CA

Active since December 08, 2006
4445 MAGNOLIA AVE, RIVERSIDE COMMUNITY HOSPITAL, RIVERSIDE, CA 92501(951) 788-3243(951) 788-3633 Get Directions Write a Review

NPPES record last updated: November 27, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Pathology Medical Group Of Riverside NPPES

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

PATHOLOGY MEDICAL GROUP OF RIVERSIDE (NPI 1417016833) is a healthcare organization registered as an anatomic pathology & clinical pathology in Riverside, California and active in the NPI registry since December 2006. The organization lists Darren Okada, Owner - Medical Director, as its authorized official.

NPPES Registry Identity

NPI1417016833
Entity TypeOrganization
Primary Taxonomy207ZP0102X
Legal Business NamePATHOLOGY MEDICAL GROUP OF RIVERSIDE
Location Address4445 MAGNOLIA AVE, RIVERSIDE COMMUNITY HOSPITALRiverside, CA 92501
Mailing AddressPo Box 260071Saint Louis, MO 63126-8071 · (314) 849-3535 · Fax (844) 410-3800
Fax(951) 788-3633
Organization SubpartNo
Authorized OfficialDarren OkadaOwner - Medical Director · (951) 788-3243
Enumeration DateDecember 8, 2006
Last NPPES UpdateNovember 27, 2019
✔ NPI 1417016833 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
4445 MAGNOLIA AVE, Riverside, CA 92501

Other Identifiers 1

MedicaidGR0087630CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Pathology Medical Group Of Riverside is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Pathology Medical Group Of Riverside, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Pathology
NPI 1518239441
4445 MAGNOLIA AVE
Riverside, CA 92501
(951) 788-3240
✔ PECOS✔ Accepts Medicare0.1 mi
Pathology
NPI 1306370523
1000 FIVEPOINT
Irvine, CA 92618
(800) 826-4673
✔ PECOS✔ Accepts Medicare30 mi
Pathology
NPI 1902253156
1450 SAN PABLO ST RM 2401
Los Angeles, CA 90033
(323) 442-2582
✔ PECOS✔ Accepts Medicare48 mi
Pathology
NPI 1023634581
1 BARNES JEWISH HOSPITAL PLZ
Saint Louis, MO 63110
(314) 362-5000
✔ PECOS✔ Accepts Medicare1,541 mi

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 Pathology Medical Group Of Riverside's NPI number?

The NPI number for Pathology Medical Group Of Riverside is 1417016833. It was assigned to this organization in the NPPES registry on December 8, 2006.

Where is Pathology Medical Group Of Riverside located?

Pathology Medical Group Of Riverside is located at 4445 Magnolia Ave Riverside Community Hospital, Riverside, CA 92501. The listed phone number is (951) 788-3243.

What is Pathology Medical Group Of Riverside's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Pathology Medical Group Of Riverside enrolled in Medicare?

Yes. Pathology Medical Group Of Riverside is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Pathology Medical Group Of Riverside?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Pathology, reassign their Medicare billing to Pathology Medical Group Of Riverside. 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, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Pathology Medical Group Of Riverside was last updated on November 27, 2019. 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.