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Our Team Dr. Rex C. Manayan
Dr. Rex C. Manayan

Dr. Rex C. Manayan

Board-Certified General Surgeon • Fellowship-Trained Thoracic Surgery

Ontario
Vascular Surgery Venous Disorders Varicose Veins

Why patients choose Dr. Manayan

Experience and credentials you can trust, paired with the kind of care that puts you at ease.

Board-certified & fellowship-trained

Held to the highest standard in vein and vascular medicine, with advanced fellowship training beyond residency.

Minimally invasive specialist

Focused on outpatient, image-guided treatments, most done through a tiny pinhole, not open surgery.

Patient-first care

Takes the time to explain every option clearly, with no pressure, so you can decide with confidence.

About Dr. Rex C. Manayan

Dr. Rex C. Manayan is a board-certified surgeon and vein specialist dedicated to treating vein conditions with safe, minimally invasive techniques. He specializes in relieving symptoms of varicose veins and venous insufficiency using advanced procedures designed to minimize discomfort and recovery time. Known for his compassionate, patient-focused approach, Dr. Manayan is committed to helping patients feel comfortable, informed, and confident throughout their care.

Professional Memberships

Diplomate of the American Board of Surgery
Society for Vascular Surgery

Languages

English
Tagalog

What patients say about Dr. Manayan

Patient feedback, collected independently through rater8.

  • “Very patient with all my questions, made sure I was comfortable before during and after my procedure, the nurses and staff were also very kind.”

    Reviewed on Google

  • “This office is VERY well run. One of the best medical experiences I have ever had. Staff is friendly and very knowledgeable. Everyone knows their role and the end-to-end process is very considerate of the patient’s time. Also, the doctor is extremely knowledgeable and thorough.”

    Reviewed on rater8

  • “The staff and the doctor, all have excellent customer service and bedside manners. They will make you laugh.”

    Reviewed on rater8

  • “I continue to be extremely satisfied with my visits. All the staff are so helpful and always have a SMILE on their faces, and Dr. Manayan is an ACE. Yep up the GREAT work!!”

    Reviewed on rater8

  • “This was my first time coming here. I was very comfortable with the whole team! The doctor was super cool! He listened to my concerns and treated me with compassion and respect. He explained everything to me in layman's terms, which makes a difference to me!”

    Reviewed on rater8

  • “Everyone at this location has been fantastic. I have 0 more treatments and I know I will do well with this group. Thank you.”

    Reviewed on rater8

Primary office

Find Dr. Manayan in Ontario

Ontario clinic

3333 Concours St., Bldg 6, Suite 100
Ontario, CA 91764

In the Ontario Center business park off the I-10, minutes from Ontario International Airport.

Care offered here

Vein Care Vascular Care GAE consults

Dr. Manayan also sees patients from Rancho Cucamonga, Chino, Chino Hills, Fontana, Upland, and Montclair.

Most insurance accepted

Including Medicare, about 98% of the procedures we perform are covered. We verify your benefits before anything is scheduled.

See all accepted plans
Inland Empire Health Plan (IEHP) acceptedAetna acceptedAnthem Blue Cross acceptedMedicare acceptedBlue Shield acceptedCigna accepted

Ready to meet Dr. Rex C. Manayan?

At Empire Vein, we’re committed to providing the highest quality of care for your long-term vascular health.

Book a Consultation
or call us directly (800) 827-4267