News & Events

Standards of Excellence™ 2020 – America’s Physician Groups (APG)

Pinnacle Medical Group was recognized by America’s Physician Groups (APG) with the 2020 Standards of Excellence™ Award. APG is the leading association in the United States representing physician organizations practicing coordinated care. Pinnacle received 5 of 5 stars awarded for achieving all Standards of Excellence. The five categories reviewed included Care Management Practices, Information Technology, Accountability and Transparency, Patient-Centered Care and Advanced Primary Care.


New Primary Care Doctors Available

We’re pleased to announce that experienced primary care physicians joined Pinnacle Medical Group in and are available to new patients!

All of Pinnacle’s physicians will be accepting new Medicare Advantage plans for 2019: The United Focus Plan, Blue Shield Choice and Brand New Day.
They also accept AARP Medicare Complete by United, Aetna, Alignment Healthcare, Blue Shield, Central Health Plan, Health Net, IEHP, Inter Valley and Scan Medicare Plans as well as most employer plans.

You can find profiles of all 21 Pinnacle PCPs here:


Alan Luo, MD
Family Medicine

Hiteshi Thakker, MD
Internal Medicine


We’re also recruiting more PCPs that will be coming very soon! If you have any questions or need assistance, please call Pinnacle’s Patient Liaison at (909) 427-9960.


Secure Online Patient Portal Now Available!

Our patient portal is a secure online website that gives our patients 24-hour access to personal health information. The portal is located at:

Portal-what it does

To obtain access to our patient portal system, please complete the following steps:

  1.  At your next visit to our office, provide your e-mail address to the front desk receptionist.
  2. Within 24 hours, you will receive an email with your invitation to our patient portal.
  3. Click the registration link in the email you receive from
  4. Follow the steps to create your unique username and password.
  5. Enter the invitation code provided by your Pinnacle Medical Group and click “Agree” to the release of information.

After you have completed registration, you will receive two additional emails:

  1. One welcoming you to the portal
  2. Another confirming your connections with our organization You will have 24/7, secure online access to our patient portal and your medical information!

Rialto Office Moved Across the Street to 1851 Riverside Ave.

pmg rialto new_webPinnacle Medical Group’s Rialto office moved across the street to a bigger office, with more doctors, on August 23, 2014. The new address for primary and urgent care is:

1851 N. Riverside Ave.
Rialto, CA 92376
(909) 421-2700

Dr. Amal Ibrahim – Pediatrics and Dr. Jesse Guadiz – Family Medicine moved to the new location that came to Pinnacle Medical Group as a part of the merger with United Family Care. They are joining Dr. Jocelyn McGrath – Pediatrics, Dr. Keth Fu – Internal Medicine, Dr. Ayad Makar – Urgent Care and Dr. Ken Nguyen – Urgent Care all previously with United.

The Urgent Care Hours for Rialto remain the same:

Weekdays: 11:00 am – 10:00 pm
Saturdays: 9:00 am – 5:00 pm
Sundays/Holidays: 9:00 am – 4:00 pm

The new Extended Care Center at 8110 Mango Ave in Fontana that also accommodates walk-in patients, is open the same hours.


Fontana office on Foothill Moved to 8110 Mango Ave in Fontana

Pinnacle Medical Group’s office on Foothill has moved!
Dr. Charles Sabbah, Dr. Leticia Cadiz and Ana Rubalcaba, PA moved on June 30, 2014 to:

8110 Mango Ave.
Fontana, CA
(909) 427-1303

See map with the location information

This is a larger location that included a new Urgent Care Center for people who want walk-in care.

Urgent Care Hours
Monday-Friday: 9:00 am – 8:00 pm
Saturdays: 9:00 am – 5:00 pm
Sundays: 9:00 am – 4:00 pm

Dr. Sabbah, Dr. Cadiz and Ana Rublacaba (Physician Assistant) are joining 7 additional primary care physicians already located at the Mango Ave. office. These Internal Medicine, Family Medicine and Pediatricians were previously a part of United Family Care, which has become a part of Pinnacle Medical Group.


United Family Care and Pinnacle Medical Group Merged

Pinnacle Medical Group and United Family Care signed an agreement to merge the physician groups as of May 1, 2014. The two groups are very similar: each with approximately 10 primary care physicians, urgent care centers and locations in San Bernardino, Rialto and Fontana.

“We are excited that our two medical groups of dedicated staff and physicians are coming together to create an even stronger, high quality medical group.  It is great for our patients, staff, and our physicians.  Together we will be the largest primary medical group in the communities we serve, opening doors of new opportunity and possibility,” said Dr. J. Duc Nguyen, President of United Family Care.

EPIC Management, LP, the health care management company for Pinnacle and nine other Inland Empire physician groups and hospitals, has been contracted to handle certain business operations including health care contracting for the merged group.

United Family Care patients will have access to additional health insurance plans already contracted with Pinnacle Medical Group including Humana, Aetna Senior, Blue Shield 65+ and HealthNet Senior plans. In addition, people with an insurance plan that has a “select or narrow physician network” will be able to choose any Pinnacle or United doctor, opening access to more physicians and facilities. All of the doctors will also accept patients who purchased Anthem Blue Cross or HealthNet insurances through Covered California, the new state health marketplace.  Patients served by other health plans already accepted by both groups will be available after the merger.

Patients will have access to expanded services as a result of the merger. Pinnacle Medical Group currently has Urgent Care Centers in Rialto and Yucaipa, and United Family Care has an UrgentCareCenter in Fontana. Patients will be able to choose from any of the three urgent care centers that are open every day of the year. There will also be more access to on-site services including digital x-ray, mammograms, pharmacies and laboratory drawing.

The Nurse Advice Hotline currently utilized by Pinnacle patients will be offered to all of the United patients as well, who will be able to call for medical advice anytime their doctors’ offices are closed including nights, weekends and holidays.

United Family Care offices will also install the same Electronic Medical Record system currently used at Pinnacle Medical Group after the merger. Patients will enjoy e-prescribing and a secure portal where patients will be able to login to message their doctor, check test results and more.

On June 30, 2014 Pinnacle’s Fontana office on Foothill Blvd moved to the 8110 Mango Ave. location.