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Comprehensive. Convenient. Compassionate.
A Division of Pomona Valley Hospital Medical Center
PVHC Logo
Comprehensive. Convenient. Compassionate.
A Division of Pomona Valley Hospital Medical Center

Gianna O’Hara, D.O.

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A big part of my job is listening. I want to learn as much as I can about my patients’ medical history as well as their daily life, because it helps me provide the exact care they need when they need it.

Dr. O’Hara became a doctor to help older adults receive the high-quality, patient-centered care they deserve and the personalized help they need as managing their health care needs becomes more complex.

Specializing in both Internal and Geriatric Medicine, Dr. O’Hara supports patients from adulthood and middle age through their senior years.

Dr. O’Hara has always valued working with older adults and understands how important it is to help them navigate the medical system. She collaborates with her patients and their families, so they feel secure in knowing their medical decisions are good for them both physically and mentally.

In her free time, Dr. O’Hara enjoys spending time with friends and family, traveling, and playing bridge.

Board-Certified in
Internal Medicine
Specializing in
Geriatric Medicine, Internal Medicine
Residency
University of Arizona Internal Medicine Residency Program, South Campus
DO
Western University of Health Science, College of Osteopathic Medicine of the Pacific
Member
American Geriatrics Society, American Medical Association
Fellowship
University of Washington, Geriatric Medicine
Services Provided
Family Medicine
Pediatric Care
Women's Health
Men’s Health
Geriatric Care
Preventative Care
Locations
Pomona

PVHC Locations
From Chino Hills to La Verne

With five locations across Southern California, your best care is closer than you think.
Find a Location Near You.

PVHC:
A Leading Medical Group in Southern California

Explore our PVHC Locations

From Chino Hills to La Verne– we’re here to provide compassionate and expert care for your entire family. With five medical clinics throughout Southern California, your best care is closer than you think.

Pomona

1770 North Orange Grove Avenue, Suite 101
Pomona, CA 91767
909-469-9494More Information >
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Chino Hills

2140 Grand Avenue, Suite 125
Chino Hills, CA 91709
909-630-7875More Information >
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Chino Hills Crossroads

3110 Chino Avenue, Suite 150
Chino Hills, CA 91709
909-630-7490More Information >
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Claremont

1601 Monte Vista Avenue, Suite 100
Claremont, CA 91711
909-630-7938More Information >
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La Verne

2333 Foothill Blvd. 
La Verne, CA 91750
909-392-6501More Information >
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What Our Patients Are Saying

The staff was extremely helpful and courteous, and the facility was clean and comfortable. An overall wonderful experience.

- Jane
I came in for a shoulder injury and was seen right away. The staff was just awesome.
- Megan
My son and I go to PVHC because we really like the care we receive. Even though we live about an hour away, we still prefer this facility over any other.
- Bridgette

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