Meet Your Gastrointestinal Cancer Team

Meet Your Expert Gastrointestinal Cancer Care Team

Our dedicated specialists fight cancer alongside you every step of the way. Their expert, patient-centered cancer care is delivered with the compassionate, whole-person support that Huntington is known for. These experienced physicians are based in Pasadena, making world-class cancer care available to everyone throughout the San Gabriel Valley.


Gabriel Akopian, MD

Gabriel Akopian, MD

Colorectal Surgeon
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Board-certified general surgeon who specializes in colorectal surgery and treats colon cancer, diverticulitis, hemorrhoids, anal fissures, anal fistulas, pilonidal cysts, inguinal hernias, umbilical hernias, and gallbladder disease.

711 Fairmount Ave., Unit 3
Pasadena, CA 91105

Phone: (626) 397-5896  

Fax: (626) 397-5899

Marc A. Attiyeh, MD

Headshot of Dr. Marc Attiyeh
Marc Attiyeh, MD
Surgical Oncology

625 S. Fair Oaks Ave., Suite 265, Pasadena, CA 91105
(626) 486-0333

Surgical Oncologist
Board-certified surgeon who specializes in treating stomach, colon, liver and pancreatic cancer, as well as sarcoma and melanoma. He is fluent in English, French, Spanish and Arabic. 

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Location:
625 S. Fair Oaks Ave., Suite 265,

Pasadena, CA 91105

(626) 486-0333

Marc Botnick, MD

Headshot: Marc Botnick, MD
Marc Botnick, MD
Radiation Oncology

625 S. Fair Oaks Ave., Suite 100, Pasadena, CA 91105
(626) 397-5149

Radiation Oncology
Board-certified radiation oncologist specializing in external beam and brachytherapy treatments for breast, colorectal, head & neck, and urologic cancer.

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Location:
625 S. Fair Oaks Ave., Suite 100,

Pasadena, CA 91105

(626) 397-5149 

Juliane Y. Golan, MD

Juliane Y. Golan, MD

Colorectal Surgeon

Board certified in general surgery as well as colon and rectal surgery, Dr. Golan mentors Huntington’s general surgery residents.

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711 Fairmount Ave., Unit 3
Pasadena, CA 91105

Phone: (626) 397-5896  

Fax: (626) 397-5899

Ramona Kyaw, MD

Ramona Kyaw

Radiation Oncology
Board-certified in radiation oncology and specializes in the treatment of gynecological, prostate, head and neck, thyroid, and breast cancers.


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Location:
625 S. Fair Oaks Ave., Suite 100,

Pasadena, CA 91105

(626) 397-5149

Tiffany Shaw, MD

Tiffany Shaw MD

Regional Medical Director of Supportive Care Medicine
Board-certified in oncology, hematology, hospice and palliative care, and internal medicine.

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Location:
625 S. Fair Oaks Ave., Suite 345,

Pasadena, CA 91105

(626) 486-0340

Adam Truong, MD

Adam Truong, MD

Colorectal Surgeon
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Board-certified colorectal surgeon who specializes in inflammatory bowel disease, colorectal and anal cancer, benign anorectal conditions, and fecal incontinence. He has extensive training in laparoscopic, advanced robotic, and endoluminal surgery.

711 Fairmount Ave., Unit 3
Pasadena, CA 91105

Phone: (626) 397-5896  

Fax: (626) 397-5899  

Tina Wang, MD

Headshot: Tina Wang, MD

Clinical Director of Medical Oncology
Specializes in the treatment of breast, liver and lung cancer, with a focus on immunotherapy. She is board-certified in hematology, oncology and internal medicine.


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Location:
625 S. Fair Oaks Ave., Suite 345,

Pasadena, CA 91105

(626) 486-0340

Ruth Williamson, MD

Headshot: Ruth Williamson

Clinical Director of Radiation Oncology
Specializes in the treatment of breast cancer and the development of psychosocial support programs for breast cancer patients and their families.


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Location:
625 S. Fair Oaks Ave., Suite 100,

Pasadena, CA 91105

(626) 397-5149

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