St. Joseph Hospital of Orange
1100 West Stewart Dr, Orange, CA 92868714.633.9111
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How to Contact Us

If you are considering weight-loss surgery, you will want to educate yourself on these life-changing procedures. The staff at the St. Joseph Hospital Bariatric Care Center are here to answer all of your questions and to determine whether you are a candidate for weight loss surgery. Just give us a call at 714-771-8298, or you can contact specific staff members as noted below.

Bariatric Care Center at St. Joseph Hospital

Jeffrey Johnsrud, M.D.
Medical Director

The Bariatric Care Center at St. Joseph Hospital, Orange, CA
714-541-4442
714-571-5911 fax

Sami Hamamji, M.D.
The Bariatric Care Center at St. Joseph Hospital, Orange, CA
714-541-5959
714-835-9550 fax

Eric Pham, M.D.
The Bariatric Care Center at St. Joseph Hospital, Orange, CA
714-541-4343
714-571-5911 fax

Heidi Daniel, R.N.
Bariatric Surgery Program at St. Joseph Hospital, Orange, CA
714-771-8298
714-771-8239 fax

Geoffrey Phillips, M.D.
Bariatric Surgery Program at St. Joseph Hospital , Orange, CA
714-453-0688
714-453-0689 fax

Natalie Buntzen, M.S., R.D.
Bariatric Surgery Program at St. Joseph Hospital , Orange, CA
714-771-8000 ext. 12972
714-771-8239 fax

Siham (Sue) Arevalo
Exercise Physiologist
714-612-5920

Mary Nell Jeffries, P.T.
Bariatric Surgery Program at St. Joseph Hospital , Orange, CA
714-771-8204

Shirley Hartshorn
Bariatric Surgery Program at St. Joseph Hospital , Orange, CA
714-771-8298