Meet the Brain and Spine 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.

Hematology Oncology

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

Timothy E. Byun, MD

Hematology Oncology

4.9 (322 Ratings)

Timothy E. Byun, MD

Hematology Oncology

My Approach to Your Health

St. Joseph Heritage Medical Group - Hematology Oncology

+ 7 other locations

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

+ 1 other location

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

Minch K. Fong, MD

Hematology Oncology

4.8 (236 Ratings)

Minch K. Fong, MD

Hematology Oncology

My Approach to Your Health

Mission Hospital Leonard Cancer Institute - Mission Viejo

+ 1 other location

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

John Y. Hu, MD

Hematology Oncology

4.9 (230 Ratings)

John Y. Hu, MD

Hematology Oncology

Mission Hospital Leonard Cancer Institute - Mission Viejo

+ 1 other location

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

Sam S. Huang, MD

Hematology Oncology

4.9 (311 Ratings)

Sam S. Huang, MD

Hematology Oncology

St. Joseph Heritage Medical Group - Hematology Oncology

+ 7 other locations

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

Steven W. Kim, MD

Hematology Oncology

4.9 (402 Ratings)

Steven W. Kim, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Crosson Cancer Institute

+ 1 other location

Photo of Lazo, Nelly A - MD - 3396764 - 1326351537

Nelly A. Lazo, MD

Hematology Oncology

Nelly A. Lazo, MD

Hematology Oncology

The Oncology Institute Mission Viejo

+ 2 other locations

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

Monica E. Lee, MD

Hematology Oncology

4.9 (357 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 (219 Ratings)

Ming C. Li, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Mission Heritage - Hematology and Oncology

+ 1 other location

Photo of Lyou, Yung - MD - 3392293 - 1013277342

Yung Lyou, MD

Medical Oncology, Hematology Oncology

4.8 (230 Ratings)

Yung Lyou, MD

Medical Oncology, Hematology Oncology

Crosson Cancer Institute

Photo of Mahmood, Tariq - MD - 3392740 - 1104874171

Tariq Mahmood, MD

Hematology Oncology

5.0 (378 Ratings)

Tariq Mahmood, MD

Hematology Oncology

My Approach to Your Health

2025 Golden State Patient Experience Award

St. Joseph Heritage Medical Group - Hematology Oncology

+ 5 other locations

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

George G. Miranda, MD

Hematology Oncology

5.0 (330 Ratings)

George G. Miranda, MD

Hematology Oncology

2025 Golden State Patient Experience Award

Mission Heritage - Hematology and Oncology

+ 1 other location

Photo of Mummaneni, Madhavi - MD - 3625479 - 1316999550

Madhavi Mummaneni, MD

Hematology Oncology

4.8 (254 Ratings)

Madhavi Mummaneni, MD

Hematology Oncology

St. Joseph Heritage Medical Group - Hematology Oncology

+ 6 other locations

Photo of Nan, Xinyu - MD - 3392601 - 1326458175

Xinyu Nan, MD

Hematology Oncology

5.0 (362 Ratings)

Xinyu Nan, MD

Hematology Oncology

St. Joseph Heritage Medical Group - Hematology Oncology

+ 1 other location

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

+ 3 other locations

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

Roy L. Panares, MD

Hematology Oncology

4.9 (351 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 (332 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 (232 Ratings)

Giribala R. Patel, MD

Hematology Oncology

Crosson Cancer Institute

Photo of Sharma, Sanjay - MD - 3627246 - 1174609358

Sanjay Sharma, MD

Hematology Oncology

4.9 (310 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

Neuro-Oncology

Photo of Carrillo, Jose A - MD - 3610748 - 1902006661

Jose A. Carrillo, MD

Neurology, Neuro-Oncology

5.0 (67 Ratings)

Jose A. Carrillo, MD

Neurology, Neuro-Oncology

2025 Golden State Patient Experience Award

Pacific Neuroscience Institute

+ 7 other locations

Neurosurgery

Photo of Anker, Lars - MD - 3610733 - 1962548537

Lars Anker, MD

Neurosurgery, Neurosurgical Oncology

Lars Anker, MD

Neurosurgery, Neurosurgical Oncology

Lars Anker, MD

+ 4 other locations

Photo of Ho, Hector W - MD - 3589622 - 1912969353

Hector W. Ho, MD

Neurosurgery, Spine Surgery

5.0 (94 Ratings)

Hector W. Ho, MD

Neurosurgery, Spine Surgery

My Approach to Your Health

2025 Golden State Patient Experience Award

St. Jude Heritage - Neurosurgery

+ 4 other locations

Request Appointment

Photo of Hwang, Brian Y - MD - 3612230 - 1699087908

Brian Y. Hwang, MD

Neurosurgery, Spine Surgery

Brian Y. Hwang, MD

Neurosurgery, Spine Surgery

Orthopaedic Specialty Institute - Laguna Hills

+ 1 other location

Photo of Jackson, Robert J - MD - 3611670 - 1023003605

Robert J. Jackson, MD

Neurosurgery, Spine Surgery

Robert J. Jackson, MD

Neurosurgery, Spine Surgery

Orthopaedic Specialty Institute - Laguna Hills

+ 1 other location

Photo of Jiang, Bowen - MD - 3394957 - 1053682971

Bowen Jiang, MD

Neurosurgery, Spine Surgery

4.9 (127 Ratings)

Bowen Jiang, MD

Neurosurgery, Spine Surgery

My Approach to Your Health

St. Jude Heritage - Neurosurgery

+ 3 other locations

Request Appointment

Photo of Kim, Keun-Young A - MD - 3612249 - 1659577286

Keun-Young A. Kim, MD

Neurosurgery, Spine Surgery

Keun-Young A. Kim, MD

Neurosurgery, Spine Surgery

O.C. Neurosurgical Associates

+ 1 other location

Photo of Liauw, Jason A - MD - 3611172 - 1285806091

Jason A. Liauw, MD

Neurosurgery, Spine Surgery

Jason A. Liauw, MD

Neurosurgery, Spine Surgery

Orthopaedic Specialty Institute - Laguna Hills

+ 1 other location

Photo of Massoudi, Farzad - MD - 3416527 - 1437144599

Farzad Massoudi, MD

Neurosurgery

Farzad Massoudi, MD

Neurosurgery

Farzad Massoudi MD, Inc.

+ 1 other location

Photo of Noblett, Bradley D - MD - 3394631 - 1689788507

Bradley D. Noblett, MD

Neurosurgery, Spine Surgery, Neurosurgical Oncology

5.0 (141 Ratings)

Bradley D. Noblett, MD

Neurosurgery, Spine Surgery, Neurosurgical Oncology

My Approach to Your Health

2025 Golden State Patient Experience Award

St. Jude Heritage - Neurosurgery

+ 3 other locations

Request Appointment

Photo of Nwagwu, Chiedozie I - MD - 3416798 - 1669552808

Chiedozie I. Nwagwu, MD

Neurosurgery

Chiedozie I. Nwagwu, MD

Neurosurgery

Photo of Rao, Vikas Y - MD - 3417672 - 1932349651

Vikas Y. Rao, MD

Neurosurgery

Vikas Y. Rao, MD

Neurosurgery

O.C. Neurosurgical Associates

+ 1 other location

Photo of Taghva, Alexander S - MD - 3416284 - 1548439920

Alexander S. Taghva, MD

Neurosurgery, Functional Neurosurgery

Alexander S. Taghva, MD

Neurosurgery, Functional Neurosurgery

O.C. Neurosurgical Associates

+ 2 other locations

Photo of Tsimpas, Asterios - MD - 3611176 - 1093919946

Asterios Tsimpas, MD

Neurosurgery

Asterios Tsimpas, MD

Neurosurgery

O.C. Neurosurgical Associates

+ 1 other location

Photo of Westbroek, Erick M - MD - 3394944 - 1720423791

Erick M. Westbroek, MD

Neurosurgery, Spine Surgery

4.9 (77 Ratings)

Erick M. Westbroek, MD

Neurosurgery, Spine Surgery

My Approach to Your Health

2025 Golden State Patient Experience Award

St. Jude Heritage - Neurosurgery

+ 3 other locations

Request Appointment

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

+ 8 other locations

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

+ 7 other locations

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

William W. Chou, MD

Radiation Oncology

William W. Chou, MD

Radiation Oncology

Mission Viejo Radiation Oncology

+ 1 other location

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

+ 1 other location

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

+ 7 other locations

Popular Searches

Quick Links

Meet the Brain and Spine Cancer Team

Our Philosophy

Hematology Oncology

Neuro-Oncology

Neurosurgery

Radiation Oncology

OUR MISSION

OUR VALUES

ACROSS PROVIDENCE

RESOURCES

Popular Searches

Quick Links

Meet the Brain and Spine Cancer Team

Our Philosophy

Hematology Oncology

Neuro-Oncology

Neurosurgery

Radiation Oncology

OUR MISSION

OUR VALUES

ACROSS PROVIDENCE

RESOURCES

CONNECT WITH US