RIALTO CLINICA MEDICA FAMILIAR
NPI 1578599809
Clinic/Center - Primary Care in Rialto, CA

Active since June 26, 2006CLIA 05D0994683 · Waiver
436 S RIVERSIDE AVE, RIALTO, CA 92376(909) 877-8868(909) 877-0008 Get Directions Write a Review

NPPES record last updated: May 25, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rialto Clinica Medica Familiar NPPES

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

RIALTO CLINICA MEDICA FAMILIAR (NPI 1578599809) is a healthcare organization registered as a primary care in Rialto, California and active in the NPI registry since June 2006. The organization holds a CLIA Waiver certificate valid through October 24, 2027 and lists Ruben Ruiz, Ceo/president, as its authorized official.

NPPES Registry Identity

NPI1578599809
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameR RUIZ M D A MEDICAL CORP
Location Address436 S RIVERSIDE AVERialto, CA 92376-6523
Mailing Address436 S Riverside AveRialto, CA 92376-6523 · (909) 877-8868
Fax(909) 877-0008
Organization SubpartNo
Authorized OfficialRuben RuizCeo/president · (562) 201-2508
Enumeration DateJune 26, 2006
Last NPPES UpdateMay 25, 2023
NPPES CertifiedMay 25, 2023
✔ NPI 1578599809 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
Also ListedSpecialistTaxonomy 174400000X · License G52245 (CA)
Also ListedPediatricsTaxonomy 208000000X
436 S RIVERSIDE AVE, Rialto, CA 92376

Other Names 2

Doing Business AsRialto Clinica Medica Familiar
Doing Business AsRialto Clinica Medica Familiar Medical Group, Inc.

Other Identifiers 1

MedicaidGR0060100CA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rialto Clinica Medica Familiar is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20040308000956Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Rialto Clinica Medica Familiar, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Nurse Practitioner
NPI 1417461294
436 S RIVERSIDE AVE
Rialto, CA 92376
(909) 877-8868
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1912901471
436 S RIVERSIDE AVE
Rialto, CA 92376
(909) 877-8868
✔ PECOSSame address
Nurse Practitioner
NPI 1003474321
436 S RIVERSIDE AVE
Rialto, CA 92376
(909) 877-8868
✔ PECOS✔ Accepts Medicare1.0 mi
Nurse Practitioner
NPI 1295593929
7974 HAVEN AVE STE 250
Rancho Cucamonga, CA 91730
(909) 941-0855
✔ PECOS✔ Accepts Medicare12 mi
Nurse Practitioner
NPI 1689170698
299 W FOOTHILL BLVD STE 209
Upland, CA 91786
(909) 982-4000
✔ PECOS✔ Accepts Medicare16 mi
Internal Medicine
NPI 1477998870
833 W WHITTIER BLVD
Montebello, CA 90640
(323) 712-4811
✔ PECOS43 mi
Nurse Practitioner
NPI 1245631365
403 W F ST
Ontario, CA 91762
(909) 988-3288
✔ PECOS✔ Accepts Medicare56 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0994683

Rialto Clinica Medica Familiar Laboratory · Rialto, CA
Active · expires Oct 24, 2027
CLIA Number05D0994683
Laboratory TypePhysician Office
Certificate Effective DateOctober 25, 2025
Certificate Expiration DateOctober 24, 2027
Laboratory DirectorRuben Ruiz MD
Laboratory Phone(909) 877-8868
Laboratory LocationRialto Clinica Medica Familiar Laboratory436 S Riverside Avenue, Rialto, CA 92376
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 R Ruiz M D A Medical Corp's NPI number?

The NPI number for R Ruiz M D A Medical Corp is 1578599809. It was assigned to this organization in the NPPES registry on June 26, 2006. The provider is doing business as Rialto Clinica Medica Familiar and Rialto Clinica Medica Familiar Medical Group, Inc..

Where is R Ruiz M D A Medical Corp located?

R Ruiz M D A Medical Corp is located at 436 S Riverside Ave, Rialto, CA 92376. The listed phone number is (909) 877-8868.

What is R Ruiz M D A Medical Corp's specialty?

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

Is R Ruiz M D A Medical Corp enrolled in Medicare?

Yes. R Ruiz M D A Medical Corp is registered in the Medicare PECOS enrollment system.

When is R Ruiz M D A Medical Corp's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through R Ruiz M D A Medical Corp?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to R Ruiz M D A Medical Corp. 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. The largest specialties are Nurse Practitioner (5) and Internal Medicine (2). Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does R Ruiz M D A Medical Corp hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0994683) is associated with this NPI, valid through October 24, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for R Ruiz M D A Medical Corp was last updated on May 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.