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Group Practices in Ontario, CA

Ontario, CA has 14 group medical practices with a combined 135 healthcare providers. The practices below are ranked by size; open any one to see its providers, accepted insurance, affiliated hospitals, and CMS quality ratings.

14
Group practices
135
Healthcare providers
14 group practices in Ontario, CA
1
Unicare Community Health Center, Inc.69 providers · 11 locations
Nurse Practitioner, Physician Assistant, Family Practice
Ontario, CA
2
Wound Masters Medical Group Inc14 providers
Physician Assistant, Nurse Practitioner, General Practice
Ontario, CA
3
Thrive Psychological Services Inc11 providers
Clinical Social Worker, Marriage And Family Therapist
Ontario, CA
4
Our Family Medical Group Inc8 providers · 3 locations
Internal Medicine, Family Practice, Gastroenterology
Ontario, CA
5
Pomona Community Health Center8 providers
Family Practice, Internal Medicine, Nurse Practitioner
Ontario, CA
6
Wound Care 360 Advanced Solutions Inc7 providers
Nurse Practitioner, Physician Assistant
Ontario, CA
7
Anesthesia Provider Group Inc3 providers · 3 locations
Certified Registered Nurse Anesthetist, Anesthesiology
Ontario, CA
8
Ruben Ruiz M D A Medical Corporation3 providers
Internal Medicine, Physician Assistant
Ontario, CA
9
Harvey H Yamamoto, Od, Inc.2 providers
Optometry
Ontario, CA
10
Holistic Nursing Medical Inc2 providers · 3 locations
Nurse Practitioner, Psychiatry
Ontario, CA
11
The Dermatology Bar A Medical Corporation2 providers
Nurse Practitioner, Physician Assistant
Ontario, CA
12
Universal Multispecialty Medical Group Inc2 providers
Internal Medicine
Ontario, CA
13
Upland-ontario Medical Clinic Inc2 providers
Emergency Medicine, Family Practice
Ontario, CA
14
West End Family Counseling Service2 providers
Psychiatry
Ontario, CA

About Group Practices in Ontario

Common specialties in Ontario group practices include nurse practitioner, internal medicine, and physician assistant.

Frequently Asked Questions

Common questions about group practices in Ontario

How many group medical practices are in Ontario, CA?

There are 14 group medical practices in Ontario, CA, spanning roughly 135 healthcare providers. Each practice page lists its providers, accepted insurance, affiliated hospitals, and CMS quality ratings.

What is the largest group practice in Ontario?

Unicare Community Health Center, Inc. is among the largest in Ontario, with 69 providers across 11 locations.

What specialties do group practices in Ontario cover?

Group practices in Ontario most commonly include Nurse Practitioner, Internal Medicine, Physician Assistant, Family Practice, among other specialties. Multi-specialty practices coordinate referrals across these areas under one organization.

How do I choose a group practice in Ontario?

Compare practices by size, the specialties represented, the insurance they accept, affiliated hospitals, and CMS MIPS quality scores. Larger multi-specialty groups often offer coordinated care and broader appointment availability; smaller practices may offer more continuity with a single provider.

Do group practices in Ontario accept my insurance?

Many do, but acceptance varies by the individual provider within a practice. Each practice page shows the insurance plans its providers are collectively in-network with — confirm your specific plan with the office before scheduling.