Internal Medicine at Rancho Cucamonga Medical Offices
Internal Medicine • Rancho Cucamonga, CA
Clinic Type
Internal Medicine
Address
10850 Arrow Route, Rancho Cucamonga, CA 91730
Phone
1-833-574-2273 (Toll free)
directoryupdate@kp.org
Opening Hours
Monday through Friday, 8:30 a.m. to 5:00 p.m. (office hours); After-hours: Monday through Friday, 5:00 p.m. to 7:00 p.m.; Saturday, 9:00 a.m. to noon, by appointment only, call for care; Also general office hours: Monday through Friday, 8 a.m. to 5 p.m.; Saturday and Sunday, Closed
Emergency Care
Emergency contact not explicitly listed; general Kaiser Permanente emergency information referenced
Services Offered
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Insurance & Payment
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No specific insurance list provided
Languages Spoken
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FAQs
What are the office hours?
Monday through Friday, 8:30 a.m. to 5:00 p.m.
What are the after-hours hours?
Monday through Friday, 5:00 p.m. to 7:00 p.m.; Saturday, 9:00 a.m. to noon, by appointment only, call for care
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- Birdeye (aggregating Google reviews): 4.4/5 stars (190 reviews)
- Yelp: 3.1/5 stars (84 reviews)
Patients praise
- Friendly and professional demeanor of medical assistants and some staff members
- Efficient service representatives in certain departments
- Helpful self-check-in kiosks
- Convenience of having integrated pharmacy and lab services on-site
Common complaints
- Long wait times for lab services due to staffing shortages
- Concerns regarding the thoroughness of patient assessments and dismissal of pain/symptoms
- Reports of rude or abrupt staff interactions, including phlebotomists
- Frustrations with the overall insurance/appointment scheduling process
"Getting anything you need is like pulling teeth, and takes weeks. I had to quickly see a primary doctor... Only to be dismissed with my pain, and denied the help I needed."
— Birdeye/Google Review"They are always friendly even when they are short staffed!! The lab wait time is extremely long, due to very little staff!!! The doctor’s assistants are very nice!"
— Birdeye/Google ReviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Dr. Nicole Sims, DO, Internist | San Bernardino, CA | WebMD — Aug 15, 2025
- Dr. Wanping Hu, MD - Internal Medicine Physician in Ontario, CA — May 14, 2026
- Dr. Jeremy Wang, MD - Internal Medicine Physician in Ontario, CA — May 14, 2026
- Dr. Michael H. Mun, DO - Internal Medicine Physician in Ontario, CA — May 14, 2026
- Dr. Carina D. Buhay, MD - Internal Medicine Physician in San Bernardino, CA — May 14, 2026
Information sourced from the clinic's website as of July 11, 2026.
More internal medicine clinics in Rancho Cucamonga
CVMG (Cucamonga Valley Medical Group) in Rancho Cucamonga offers family medicine and primary care services. The group provides internal medicine, pediatrics, osteopathic medicine, and preventive/acute care across multiple California locations, including Rancho Cucamonga. They emphasize patient- and family-centered care with a network of doctors and multiple offices to serve the surrounding Eastvale, Fontana, Upland, and Rancho Cucamonga communities. Official site: CVMGDocs.com.
Summary: Chaparral Medical Group has a location in Rancho Cucamonga, California. The address listed is 9190 Haven Ave Ste 101, Rancho Cucamonga, CA 91730, United States.
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