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UPLAND RHEUMATOLOGY CENTER
NPI 1174106231
Internal Medicine - Rheumatology in Upland, CA

Active since May 05, 2021CLIA 05D2292402 · Waiver
886 W FOOTHILL BLVD STE E, UPLAND, CA 91786(909) 932-1122(909) 932-9292 Get Directions Write a Review

NPPES record last updated: January 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 7, 2026, Sep 15, 2021, May 21, 2021 and 2 more (5 updates tracked since 2021).

About Upland Rheumatology Center NPPES

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

UPLAND RHEUMATOLOGY CENTER (NPI 1174106231) is a healthcare organization registered as a rheumatology in Upland, California and active in the NPI registry since May 2021. The organization holds a CLIA Waiver certificate valid through October 24, 2027 and lists Ebrahim Sadeghi-najafabadi, Owner, as its authorized official.

NPPES Registry Identity

NPI1174106231
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameUPLAND RHEUMATOLOGY CENTER
Location Address886 W FOOTHILL BLVD STE EUpland, CA 91786-3780
Mailing Address14535 Greenleaf StSherman Oaks, CA 91403-3770 · (909) 932-1122 · Fax (909) 932-9292
Phone(909) 932-1122
Fax(909) 932-9292
Organization SubpartNo
Authorized OfficialEbrahim Sadeghi-najafabadiOwner · (909) 932-1122
Enumeration DateMay 5, 2021
Last NPPES UpdateJanuary 7, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2026
✔ NPI 1174106231 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedNon-Pharmacy Dispensing SiteTaxonomy 332900000X
886 W FOOTHILL BLVD STE E, Upland, CA 91786
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness, Ambetter from Buckeye Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Upland Rheumatology Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Upland Rheumatology Center, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ebrahim Sadeghi-Najafabadi, M.D.
Rheumatology
NPI 1205156866
886 W FOOTHILL BLVD STE E
Upland, CA 91786
(909) 932-1122
✔ PECOS✔ Accepts Medicare1.4 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 05D2292402

Upland Rheumatology Center, Inc · Upland, CA
Active · expires Oct 24, 2027
CLIA Number05D2292402
Laboratory TypePhysician Office
Certificate Effective DateOctober 25, 2025
Certificate Expiration DateOctober 24, 2027
Laboratory DirectorEbrahim Sadeghi-Najafabadi
Laboratory Phone(909) 932-1122
Laboratory LocationUpland Rheumatology Center, Inc886 W Foothill Blvd Suite E, Upland, CA 91786
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 Upland Rheumatology Center's NPI number?

The NPI number for Upland Rheumatology Center is 1174106231. It was assigned to this organization in the NPPES registry on May 5, 2021.

Where is Upland Rheumatology Center located?

Upland Rheumatology Center is located at 886 W Foothill Blvd Ste E, Upland, CA 91786. The listed phone number is (909) 932-1122.

What is Upland Rheumatology Center's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Upland Rheumatology Center enrolled in Medicare?

Yes. Upland Rheumatology Center is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Upland Rheumatology Center?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Rheumatology) reassigns their Medicare billing to Upland Rheumatology Center. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Upland Rheumatology Center hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2292402) is associated with this NPI, valid through October 24, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Upland Rheumatology Center accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness and Ambetter from Buckeye Health Plan and 22 other insurers list Upland Rheumatology Center as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Upland Rheumatology Center was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.