Outpatient surgery centers in Ontario, CA
2 outpatient surgery centers certified by Medicare.
2 outpatient surgery centers in Ontario; 87 more within 25 miles.
An outpatient surgery center (ambulatory surgical center, ASC) does surgery and procedures that do not need a hospital stay: patients usually go home the same day. Common examples are cataract surgery, colonoscopy and other endoscopy, joint and hand surgery, and pain injections. The centers listed here are certified by Medicare. They are not emergency rooms.
By kind of surgery
Number of centers here certified by Medicare for each kind of surgery (one center can do several).
- Eye surgery (ophthalmology)2
- Orthopedic surgery (bones and joints)1
- Plastic surgery1
- Foot surgery (podiatry)1
- Ear, nose and throat surgery1
- Gynecologic surgery (OB/GYN)1
- Other surgery1
All outpatient surgery centers in Ontario
- Mid Valley Surgery Center(909) 204‑3540Eye surgery, Plastic surgery, Other surgery · 3 operating rooms
- Ontario Advanced Surgery Center(909) 981‑8755Eye surgery, Orthopedic surgery, Foot surgery +2 more · 5 operating rooms
Nearby outpatient surgery centers within 25 miles
- Foothill Ambulatory Surgery Center3.0 mi · Upland, CA
- Merit Surgery Center, Inc.3.0 mi · Upland, CA
- Pacific Eye Institute3.0 mi · Upland, CA
- San Antonio Ambulatory Surgical Center3.0 mi · Upland, CA
- Upland Vascular Center LLC3.0 mi · Upland, CA
- Archibald Surgery Center LLC4.0 mi · Rancho Cucamonga, CA
- Chino Premier Surgery Center5.0 mi · Chino, CA
- Chino Stone & Surgery Center5.0 mi · Chino, CA
More care in Ontario
Common questions
How many outpatient surgery centers are in Ontario?
Medicare (CMS) lists 2 outpatient surgery centers in Ontario, California.
Which surgery centers in Ontario do eye surgery such as cataract surgery?
2 of the 2 outpatient surgery centers are certified by Medicare for it: Mid Valley Surgery Center and Ontario Advanced Surgery Center. Ask the center whether it does your specific procedure.
Which surgery centers in Ontario do endoscopy such as colonoscopy?
None of the centers here lists it in its Medicare certification record.
Which surgery centers in Ontario do orthopedic (bone and joint) surgery?
1 of the 2 outpatient surgery centers are certified by Medicare for it: Ontario Advanced Surgery Center. Ask the center whether it does your specific procedure.
Do surgery centers have Medicare star ratings?
No. Medicare does not rate outpatient surgery centers with stars. Each center’s page shows the official Medicare quality measures and patient survey results instead, next to the national values.
Source: Centers for Medicare & Medicaid Services (CMS), “Provider of Services File - Internet Quality Improvement and Evaluation System”, data updated 2026-10-16, retrieved 2026-11-13. In a medical emergency, call 911. About outpatient surgery centers and their quality measures