Meet the Pancreatic Liver and Bile Duct Cancer Team

Our Philosophy

At the Providence Orange County Cancer Institute, our team offers extensive expertise and a seamlessly coordinated approach to your care. You’ll be supported by experienced surgeons, oncologists, nurses, and specialized support staff who collaborate closely to design and deliver the most appropriate treatment for you.

Gastroenterology

Photo of Abousaif, Alaa - MD - 3391484 - 1235124108

Alaa Abousaif, MD

Gastroenterology

Alaa Abousaif, MD

Gastroenterology

My Approach to Your Health

InSite Digestive Health Care

Photo of Alkhatib, Ousama - MD - 3391745 - 1093283905

Ousama Alkhatib, MD

Gastroenterology

Ousama Alkhatib, MD

Gastroenterology

InSite Digestive Health Care

Photo of Najarian, Haig - MD - 3391609 - 1912010257

Haig Najarian, MD

Gastroenterology

Haig Najarian, MD

Gastroenterology

InSite Digestive Health Care

Amit Raina, MD

Gastroenterology

Amit Raina, MD

Gastroenterology

Amit Raina, MD, Inc.

+ 1 other location

Photo of Riff, Brian P - MD - 3389409 - 1194969030

Brian P. Riff, MD

Gastroenterology

Brian P. Riff, MD

Gastroenterology

Associated Gastroenterology

+ 1 other location

Photo of Singh, Hardeep M - MD - 3391631 - 1275544074

Hardeep M. Singh, MD

Gastroenterology

Hardeep M. Singh, MD

Gastroenterology

My Approach to Your Health

InSite Digestive Health Care

Photo of Yoon, Eugene J - MD - 3625053 - 1861618449

Eugene J. Yoon, MD

Gastroenterology

4.9 (113 Ratings)

Eugene J. Yoon, MD

Gastroenterology

St. Jude Heritage Fullerton - Gastroenterology

+ 1 other location

General Surgery

Photo of Abbass, Ahmad A - MD - 3394110 - 1790946895

Ahmad A. Abbass, MD

Hepatobiliary and Pancreatic Surgery, General Surgery

Ahmad A. Abbass, MD

Hepatobiliary and Pancreatic Surgery, General Surgery

South Orange County Surgical Medical Group

Photo of Ahmed, Saif - DO - 5812662 - 1669911574

Saif Ahmed, DO

General Surgery

Saif Ahmed, DO

General Surgery

St. Jude Heritage Fullerton - Sunny Crest General Surgery

Photo of El-Bayar, Hisham M - MD - 3394105 - 1659376622

Hisham M. El-Bayar, MD

General Surgery, Surgical Oncology, Hepatobiliary and Pancreatic Surgery

Hisham M. El-Bayar, MD

General Surgery, Surgical Oncology, Hepatobiliary and Pancreatic Surgery

My Approach to Your Health

Orange Surgical Associates

Photo of Stapfer, Maria V - MD - 3625650 - 1073543146

Maria V. Stapfer, MD

General Surgery

5.0 (54 Ratings)

Maria V. Stapfer, MD

General Surgery

My Approach to Your Health

2025 Golden State Patient Experience Award

St. Jude Heritage Center for Foregut Surgery

Hematology Oncology

Photo of Byun, Timothy E - MD - 3587902 - 1871545012

Timothy E. Byun, MD

Hematology Oncology

4.9 (320 Ratings)

Timothy E. Byun, MD

Hematology Oncology

My Approach to Your Health

St. Joseph Heritage Medical Group - Hematology Oncology

Photo of Cheng, Howard H - MD - 3409039 - 1366435299

Howard H. W. Cheng, MD

Hematology Oncology

Howard H. W. Cheng, MD

Hematology Oncology

Howard Cheng, MD

Photo of Fong, Minch K - MD - 3587646 - 1407849284

Minch K. Fong, MD

Hematology Oncology

4.8 (248 Ratings)

Minch K. Fong, MD

Hematology Oncology

My Approach to Your Health

Mission Heritage - Hematology and Oncology

Photo of Hu, John Y - MD - 3587650 - 1649698127

John Y. Hu, MD

Hematology Oncology

4.9 (222 Ratings)

John Y. Hu, MD

Hematology Oncology

Mission Heritage - Hematology and Oncology

Photo of Huang, Sam S - MD - 3392849 - 1841248812

Sam S. Huang, MD

Hematology Oncology

4.9 (323 Ratings)

Sam S. Huang, MD

Hematology Oncology

St. Joseph Heritage Medical Group - Hematology Oncology

+ 1 other location

Photo of Jiang, Fen J - MD - 3420771 - 1831312289

Fen J. Jiang, MD

Hematology Oncology

4.9 (221 Ratings)

Fen J. Jiang, MD

Hematology Oncology

Mission Heritage - Hematology and Oncology

Photo of Kim, Steven W - MD - 3392699 - 1003886698

Steven W. Kim, MD

Hematology Oncology

4.9 (411 Ratings)

Steven W. Kim, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Crosson Cancer Institute

+ 1 other location

Photo of Lee, Monica E - MD - 3627269 - 1215129309

Monica E. Lee, MD

Hematology Oncology

4.9 (368 Ratings)

Monica E. Lee, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Crosson Cancer Institute

Photo of Li, Ming C - MD - 3392788 - 1770843054

Ming C. Li, MD

Hematology Oncology

5.0 (220 Ratings)

Ming C. Li, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Mission Heritage - Hematology and Oncology

Photo of Lyou, Yung - MD - 3392293 - 1013277342

Yung Lyou, MD

Medical Oncology, Hematology Oncology

4.8 (240 Ratings)

Yung Lyou, MD

Medical Oncology, Hematology Oncology

Crosson Cancer Institute

Photo of Mahmood, Tariq - MD - 3392740 - 1104874171

Tariq Mahmood, MD

Hematology Oncology

4.9 (395 Ratings)

Tariq Mahmood, MD

Hematology Oncology

My Approach to Your Health

2025 Golden State Patient Experience Award

St. Joseph Heritage Medical Group - Hematology Oncology

Photo of Miranda, George G - MD - 3392296 - 1558545038

George G. Miranda, MD

Hematology Oncology

5.0 (343 Ratings)

George G. Miranda, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Mission Heritage - Hematology and Oncology

Photo of Mummaneni, Madhavi - MD - 3625479 - 1316999550

Madhavi Mummaneni, MD

Hematology Oncology

4.8 (251 Ratings)

Madhavi Mummaneni, MD

Hematology Oncology

St. Joseph Heritage Medical Group - Hematology Oncology

Photo of Nan, Xinyu - MD - 3392601 - 1326458175

Xinyu Nan, MD

Hematology Oncology

4.9 (345 Ratings)

Xinyu Nan, MD

Hematology Oncology

St. Joseph Heritage Medical Group - Hematology Oncology

Photo of Otis, Stavroula A - MD - 3396958 - 1477677557

Stavroula A. Otis, MD

Hematology Oncology

Stavroula A. Otis, MD

Hematology Oncology

Center for Cancer and Blood Disorders

Photo of Panares, Roy L - MD - 3625550 - 1285837229

Roy L. Panares, MD

Hematology Oncology

4.9 (353 Ratings)

Roy L. Panares, MD

Hematology Oncology

Crosson Cancer Institute

Photo of Park, David J - MD - 3587852 - 1275619447

David J. Park, MD

Hematology Oncology

4.9 (364 Ratings)

David J. Park, MD

Hematology Oncology

Crosson Cancer Institute

Photo of Patel, Giribala R - MD - 3392730 - 1033106562

Giribala R. Patel, MD

Hematology Oncology

4.9 (256 Ratings)

Giribala R. Patel, MD

Hematology Oncology

Crosson Cancer Institute

Photo of Sharma, Sanjay - MD - 3627246 - 1174609358

Sanjay Sharma, MD

Hematology Oncology

4.9 (303 Ratings)

Sanjay Sharma, MD

Hematology Oncology

Crosson Cancer Institute

Photo of Spector, Kellie D - MD - 3397128 - 1700374469

Kellie D. Spector, MD

Hematology Oncology

Kellie D. Spector, MD

Hematology Oncology

Center for Cancer and Blood Disorders

Photo of Wong, John K - MD - 3397126 - 1336436500

John K. Wong, MD

Hematology Oncology

John K. Wong, MD

Hematology Oncology

Cancer & Blood Specialty Clinic

Interventional Radiology

Photo of Babin, Ivan - MD - 3604464 - 1134461486

Ivan Babin, MD

Interventional Radiology

Ivan Babin, MD

Interventional Radiology

Mission Hospital - Interventional Radiology

Photo of Burns, Kevin M - MD - 3604779 - 1174880389

Kevin M. Burns, MD

Interventional Radiology

Kevin M. Burns, MD

Interventional Radiology

Mission Hospital - Interventional Radiology

Photo of Jackson, Bradley A - MD - 3409196 - 1124206487

Bradley A. Jackson, MD

Interventional Radiology

Bradley A. Jackson, MD

Interventional Radiology

St. Jude Radiology Medical Group

+ 2 other locations

Photo of Ton, Jimmy T - MD - 3423052 - 1083032841

Jimmy T. Ton, MD

Interventional Radiology

Jimmy T. Ton, MD

Interventional Radiology

Mission Hospital - Interventional Radiology

Medical Oncology

Yung Lyou, MD

Medical Oncology, Hematology Oncology

4.8 (240 Ratings)

Yung Lyou, MD

Medical Oncology, Hematology Oncology

Crosson Cancer Institute

Radiation Oncology

Photo of Ash, Robert B - MD - 3408517 - 1326238650

Robert B. Ash, MD

Radiation Oncology

Robert B. Ash, MD

Radiation Oncology

My Approach to Your Health

Center for Cancer Prevention and Treatment

Photo of Bhandari, Tanuja A - MD - 3605309 - 1518147610

Tanuja A. Bhandari, MD

Radiation Oncology

Tanuja A. Bhandari, MD

Radiation Oncology

Center for Cancer Prevention and Treatment

Photo of Chou, William W - MD - 3604580 - 1790713253

William W. Chou, MD

Radiation Oncology

William W. Chou, MD

Radiation Oncology

Mission Viejo Radiation Oncology

Photo of Dolkar, Dechen - MD - 3410080 - 1861475683

Dechen Dolkar, MD

Radiation Oncology

Dechen Dolkar, MD

Radiation Oncology

Fred A. Jordan Family Radiation Oncology Center

+ 1 other location

Photo of Liu, Gene-Fu F - MD - 3605185 - 1639306426

Gene-Fu F. Liu, MD

Radiation Oncology

Gene-Fu F. Liu, MD

Radiation Oncology

Mission Viejo Radiation Oncology

Photo of Sheu, Tommy - MD - 3604431 - 1568880060

Tommy Sheu, MD

Radiation Oncology

Tommy Sheu, MD

Radiation Oncology

Fred A. Jordan Family Radiation Oncology Center

Photo of Williams, Venita L - MD - 3604689 - 1659581775

Venita L. Williams, MD

Radiation Oncology

Venita L. Williams, MD

Radiation Oncology

Center for Cancer Prevention and Treatment

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Meet the Pancreatic, Liver and Bile Duct Cancer Team

Our Philosophy

Gastroenterology

General Surgery

Hematology Oncology

Interventional Radiology

Medical Oncology

Radiation Oncology

OUR MISSION

OUR VALUES

ACROSS PROVIDENCE

RESOURCES

Popular Searches

Quick Links

Meet the Pancreatic, Liver and Bile Duct Cancer Team

Our Philosophy

Gastroenterology

General Surgery

Hematology Oncology

Interventional Radiology

Medical Oncology

Radiation Oncology

OUR MISSION

OUR VALUES

ACROSS PROVIDENCE

RESOURCES

CONNECT WITH US