California Kidney Specialists

What California Kidney Specialists does

California Kidney Specialists is a private, physician-owned nephrology and internal medicine practice founded in 1983 by Dr. Syed Arif Ali Rizvi and headquartered in San Dimas, California. The group operates as one of the larger kidney care providers in Southern California, employing 101–250 staff and 14+ board-certified nephrologists and kidney transplant specialists, including founding-era physicians Dr. Rizvi and Dr. Claudio Gallego (since 1986) along with Dr. Aamir Jamal (since 1996).

The practice delivers the full spectrum of kidney-related care through a regional network of nephrology offices in San Dimas, Covina, Pasadena, Upland, and Ontario, complemented by affiliated dialysis centers, hospital coverage, and the California Vascular Center for vascular access procedures. Service lines include chronic kidney disease management, hemodialysis and peritoneal dialysis, renal transplant evaluation and post-transplant care, hypertension management, diabetic nephropathy, and glomerular disease management. A wholly-owned subsidiary, North America Research Institute (NARI), conducts physician-led clinical trials, extending the practice into research-based revenue beyond standard fee-for-service nephrology.

Revenue is generated through professional healthcare services billed to patients and third-party payers under standard medical billing practices; specific pricing is not publicly disclosed. Patient acquisition is sales-led via direct office and phone intake, supported by SEO-driven educational content, patient resources, and testimonial content on the company website. The ownership structure is a physician partnership with no private equity, venture capital, or corporate parent disclosed in the data.

Name

California Kidney Specialists

Legal name

California Kidney Specialists

Website

https://californiakidneyspecialists.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

101–250 employees

Short description

California Kidney Specialists is a physician-owned nephrology practice in Southern California, founded in 1983, offering chronic kidney disease management, dialysis, renal transplant care, hypertension management, and vascular access services through 14+ physicians across multiple regional offices and affiliated dialysis centers.

Ownership category

akta.pro rank

Product category

Nephrology Services

NAICS

Offices of Physicians (except Mental Health Specialists) (621111), Kidney Dialysis Centers (621492)

SIC

Services-Offices & Clinics Of Doctors Of Medicine (8011)

akta.pro primary industry

General Nephrology Practice (HLAKAHAA)

akta.pro secondary industries

Dialysis Services (Hemodialysis & Peritoneal Dialysis) (HLAKAHAC), Interventional Nephrology (Dialysis Access Procedures) (HLAKAHAE), Glomerular & Autoimmune Kidney Disease (Glomerulonephritis) Clinics (HLAKAHAG)

Keywords

• Nephrology services
• Dialysis treatment
• Kidney disease care
• Renal transplant coordination
• Vascular access surgery

Headquarters

HQ city

San Dimas

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Healthcare Services Revenue: California Kidney Specialists generates revenue through providing nephrology healthcare services including office consultations, dialysis treatments, renal transplant coordination, and hypertension management. The practice operates an extensive network of nephrology offices and dialysis centers throughout Southern California, serving patients with chronic kidney disease and related conditions.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

California Kidney Specialists is a physician-owned nephrology medical practice that diagnoses, treats, and manages kidney-related conditions. Its core offerings include chronic kidney disease management, hemodialysis and peritoneal dialysis services, renal transplant evaluation and post-transplant care, hypertension management, diabetic nephropathy care, glomerulonephritis treatment, and vascular access procedures. Services are delivered through a network of nephrology offices and dialysis centers across Southern California.

Product overview

California Kidney Specialists operates as a healthcare services organization offering a unified portfolio of kidney care services. The core offering consists of medical treatment services for kidney-related conditions including Chronic Kidney Disease Treatment, Dialysis Services, Renal Transplant coordination, Hypertension Management, Diabetic Nephropathy Care, Glomerulonephritis Management, and vascular access services through the California Vascular Center. The organization also includes North America Research Institute (NARI), a clinical research subsidiary focused on conducting clinical trials. Services are delivered through an extensive network of nephrology offices and dialysis center locations throughout Southern California.

Differentiator

Problem solved

Functional benefit

Brands

• North America Research Institute (NARI): A healthcare service organization focused on conducting clinical research trials with precise care, excellent quality and persistent diligence. NARI is physician owned and operated with an unparalleled network of board-certified physician investigators and professional research coordinators.

Products and services

• Chronic Kidney Disease Treatment Comprehensive management and treatment services for patients with chronic kidney disease (CKD), including monitoring, lifestyle interventions, and medical management to slow disease progression.
• Dialysis Services Dialysis treatment services including hemodialysis and peritoneal dialysis for patients with end-stage renal disease, offered at multiple dialysis center locations throughout Southern California.
• Renal Transplant Kidney transplant evaluation, coordination, and post-transplant care services provided through the practice's network of transplant specialists and partner hospitals.
• Hypertension Management Blood pressure management and monitoring services for patients with hypertension, including lifestyle counseling and medication management.
• Diabetic Nephropathy Care Specialized treatment and monitoring for diabetic kidney disease, including blood sugar management and kidney function preservation strategies.
• Glomerulonephritis Management Diagnosis and treatment of glomerulonephritis and other glomerular diseases affecting kidney function.
• California Vascular Center Vascular access services including creation and maintenance of dialysis access points, surgical interventions, and vascular health management.
• North America Research Institute (NARI) Clinical Trials Clinical research division conducting clinical trials with precise care, excellent quality, and persistent diligence. A physician-owned and operated research organization with board-certified physician investigators and professional research coordinators.

Named customers2 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• North America Research Institute (NARI)coreStrategic or Co-development PartnerNARI is a physician-owned and operated healthcare service organization focused on conducting clinical research trials. It operates as an affiliated entity of California Kidney Specialists, with an unparalleled network of board-certified physician investigators and professional research coordinators providing superior value and service to clientele in complete regulatory compliance.

Scale indicators4 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• Satellite Healthcare: Non-profit dialysis and kidney disease provider operating outpatient dialysis centers and CKD education programs across the Western U.S., including Southern California — overlapping geography, service lines, and chronic care orientation.
• DaVita Kidney Care: Largest U.S. provider of dialysis services and integrated kidney care, operating thousands of outpatient dialysis centers and serving nephrology patients nationwide — the dominant scale competitor to independent groups like California Kidney Specialists.
• U.S. Renal Care: National dialysis services provider operating outpatient centers across multiple states, including California, providing hemodialysis, peritoneal dialysis, and integrated kidney care — a comparable scale competitor in the same outpatient dialysis category.
• Innovative Renal Care: Outpatient dialysis network formed via merger of American Renal Associates and IRC, operating dialysis centers and integrated kidney care programs that compete with multi-specialty nephrology groups for dialysis patient volume.
• Southwest Kidney Institute: Large independent nephrology group serving the Phoenix metropolitan area with comprehensive kidney care services including dialysis, transplant support, and vascular access — highly comparable group practice structure and clinical scope.
• Fresenius Kidney Care: Operates one of the largest networks of outpatient dialysis clinics in the U.S., offering hemodialysis, peritoneal dialysis, and vascular access services that directly overlap with California Kidney Specialists' core offerings.

Broad incumbents

• Cleveland Clinic Nephrology: National health system with a large nephrology department providing CKD management, dialysis, and transplant across multiple sites — comparable specialty services as part of a much broader care delivery portfolio.
• Cedars-Sinai Smidt Heart Institute Nephrology: Major academic medical center in Los Angeles with a comprehensive nephrology program offering CKD care, dialysis, and transplant services — broader portfolio but overlapping specialty and regional patient base.

Others

• Renal Physicians Association: National professional association representing nephrology practitioners, providing practice management resources and advocacy relevant to independent nephrology groups like California Kidney Specialists.

Regional players

• Kidney Specialists of Southern Nevada: Multi-physician independent nephrology practice in Las Vegas offering CKD care, dialysis, hypertension management, and transplant coordination — comparable group practice model in an adjacent Western U.S. market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Californiakidneyspecialists
• LinkedInlinkedin.com/company/california-kidney-specialists

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about California Kidney Specialists