Find A Doctor

Oak Valley Hospital is fully staffed by local certified physicians who provide a full range of medical specialties. Allied health professionals include certified nurse practitioners, physician assistants, registered nurses, social workers and lactation specialists.


Medical staff officers

Elected by fellow physicians for two year terms, provide leadership for hospital care.

Chief of Staff
Bruce Blackhart, MD
Vice Chief of Staff
Andrea Stark, MD
Chief of Surgery
Edward Chock, MD
Chief of Medicine
Krystyna Belski, MD
Name Address Specialty Phone
Albert Gelders, MD 1420 West H Street, Suite
Oakdale, CA 95361
Womans Health Prenatal 209-848-5336
Amrik S. Basi, MD 1420 West H Street
Oakdale, CA 95361
Occupational Health 209-848-4180
Andrea Stark, MD 350 South Oak Avenue
Oakdale, CA 95361
Anesthesiology 209-847-3011
Andres Arellano, MD 1425 West H Street, Suite 380
Oakdale, CA 95361
Internal Medicine 209-847-1596
Bob Peterson, MD 2390 Jackson Ave
Escalon, CA 95320
Family Practice 209-838-6015
Bruce Blackhart, MD 1425 West H Street, Suite 200
Oakdale, CA 95361
Family Practice 209-848-1005
Chaitanya Mahida, MD 1425 West H Street, Suite 380
Oakdale, CA 95361
Internal Medicine 209-847-0314
Chang Joo, MD 305 E. Granger Ave., Suite 202
Modesto, CA 95350
Nephrology 209-526-1606
Charles Lopez, MD 350 South Oak Avenue
Oakdale, CA 95361
Anesthesiology 209-847-3011
Curtis Dewar, MD McHenry Medical Group,1541 Florida Avenue, Suite 200
Modesto, CA 95350
Urology 209-577-3388
Curtis Strong, MD 2625 Coffee Road, Suite S
Modesto, CA 95355
Pathology 209-577-1200
David Olson, MD 232 West F Street
Oakdale, CA 95361
Internal Medicine 209-848-2273
David Wells, DPM 4101 Tully Road, #102
Modesto, CA 95356
Podiatry 209-529-0560
Don Endress, MD 12700 Welch
Waterford, CA 95386
Family Practice 209-874-2345
Dr. Jerrold Polterock, MD, FACS 250 S Oak Ave Suite 4
Oakdale, CA 95361
Otolaryngology 209-847-3011
Dr. Shahin Laghaee, MD 366 West F Street
Oakdale, CA 95361
Gastroenterology (209) 848-1488
Edward Chock, MD 1390 West H Street, Suite B
Oakdale, CA 95361
General Surgery 209-847-2201
Elaine Madayag-Capuno, MD 715 West H Street
Oakdale, CA 95361
General Surgery 209-848-2920
Esther Tow-Der, MD 1552 Coffee Road, 1st floor
Modesto, CA 95355
Gynecology 209-521-4372
Frank Fine, MD 803 Coffee Road, Suite 4
Modesto, CA 95355
Family Practice 209-569-0778
Hassan Hussain, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Cardiology 209-521-9661
James Shu, MD 350 South Oak Avenue
Oakdale, CA 95361
Anesthesiology 209-847-3011
James Yip, MD 1552 Coffee Road, 1st floor
Modesto, CA 95355
Gynecology 209-521-4372
Jeffrey Mark, MD 2101 Geer Road, Suite 118
Turlock, CA 95382
Gastroenterology 209-669-5000
Jennifer Cordier, MD 250 S. Oak Ave., Suite A-1
Oakdale, CA 95361
Pediatrics 209-848-8133
John Martin, MD 1524 McHenry Ave, #430
Modesto, CA 95350
Radiology 209-577-4444
Jose Mari Santos, MD 608 E. Orangeburg AVe.
Modesto, CA 95350
Nephrology 209-529-2645
Joydev Acharya, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Cardiology 209-521-9661
Kent Wong, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Cardiology 209-521-9661
Krystyna Belski, MD 1420 West H Street
Oakdale, CA 95361
Pediatrics 209-848-4180
Lee Horwitz, MD 1425 West H Street, Suite 200
Oakdale, CA 95361
Family Practice 209-848-1005
Leslie Konkin, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Orthopedics 209-847-2254
Luke Romero, MD 350 South Oak Avenue
Oakdale, CA 95361
Anesthesiology 209-847-3011
Mark Cook, MD 1425 West H Street, Suite 200
Oakdale, CA 95361
Family Practice 209-848-1005
Mark Tidyman, MD 350 South Oak Avenue
Oakdale, CA 95361
Anesthesiology 209-847-3011
Marnelli Bautista-Quach, MD 2625 Coffee Road, Suite S
Modesto, CA 95355
Pathology 209-577-1200
Mohsen El Ramah, MD 608 E. Orangeburg Ave.
Modesto, CA 95350
Nephrology 209-529-2645
Mutahir Khan, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Cardiology 209-521-9661
Pardeep Brar, MD 2209 Coffee Rd, Suite M
Modesto, CA 95355-2360
Gastroenterology 209-624-8778
Philip Edington, MD 1425 West H Street, Suite 340
Oakdale, CA 95361
Ophthalmology 209-847-2780
Rajesh Dubey, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Cardiology 209-521-9661
Robert Cash, MD 1425 West H Street, Suite 300
Oakdale, CA 95361
Orthopedics 209-847-2254
Robert Lynch, MD 2603 Patterson Road, Suite 1
Riverbank, CA 95367
General Surgery 209-869-2566
Steven Wunschel, MD McHenry Medical Group, 1541 Florida Avenue, Suite 200
Modesto, CA 95350
Urology 209-577-3388
Tammy Wu, MD 2336 Sylvan Ave, Suite C
Modesto, CA 95355
Plastic and Reconstructive Surgery 209-551-1888
Tong Sun, MD 305 E. granger Ave., Suite 202
Modesto, CA 95350
Nephrology 209-526-1606
Tony Tam, MD 1401 Spanos Court #127
Modesto, CA 95355
General Surgery 209-525-3848
Upinder Basi, MD 1425 West H Street, Suite 380
Oakdale, CA 95361
General Surgery 209-847-0314
Uzay Yasar, MD McHenry Medical Group, 1541 Florida Avenue, Suite 200
Modesto, CA 95350
Urology 209-577-3388
Warren Gee, MD 350 South Oak Avenue
Oakdale, CA 95361
Anesthesiology 209-847-3011
Albert Gelders, MD
womans-health-prenatal
1420 West H Street, Suite
Oakdale, CA 95361
209-848-5336
Amrik S. Basi, MD
occupational-health
1420 West H Street
Oakdale, CA 95361
209-848-4180
Andrea Stark, MD
anesthesiology
350 South Oak Avenue
Oakdale, CA 95361
209-847-3011
Andres Arellano, MD
internal-medicine
1425 West H Street, Suite 380
Oakdale, CA 95361
209-847-1596
Bob Peterson, MD
family-practice
2390 Jackson Ave
Escalon, CA 95320
209-838-6015
Bruce Blackhart, MD
family-practice
1425 West H Street, Suite 200
Oakdale, CA 95361
209-848-1005
Chaitanya Mahida, MD
internal-medicine
1425 West H Street, Suite 380
Oakdale, CA 95361
209-847-0314
Chang Joo, MD
nephrology
305 E. Granger Ave., Suite 202
Modesto, CA 95350
209-526-1606
Charles Lopez, MD
anesthesiology
350 South Oak Avenue
Oakdale, CA 95361
209-847-3011
Curtis Dewar, MD
urology
McHenry Medical Group,1541 Florida Avenue, Suite 200
Modesto, CA 95350
209-577-3388
Curtis Strong, MD
pathology
2625 Coffee Road, Suite S
Modesto, CA 95355
209-577-1200
David Olson, MD
internal-medicine
232 West F Street
Oakdale, CA 95361
209-848-2273
David Wells, DPM
podiatry
4101 Tully Road, #102
Modesto, CA 95356
209-529-0560
Don Endress, MD
family-practice
12700 Welch
Waterford, CA 95386
209-874-2345
Dr. Jerrold Polterock, MD, FACS
otolaryngology
250 S Oak Ave Suite 4
Oakdale, CA 95361
209-847-3011
Dr. Shahin Laghaee, MD
gastroenterology
366 West F Street
Oakdale, CA 95361
(209) 848-1488
Edward Chock, MD
general-surgery
1390 West H Street, Suite B
Oakdale, CA 95361
209-847-2201
Elaine Madayag-Capuno, MD
general-surgery
715 West H Street
Oakdale, CA 95361
209-848-2920
Esther Tow-Der, MD
gynecology
1552 Coffee Road, 1st floor
Modesto, CA 95355
209-521-4372
Frank Fine, MD
family-practice
803 Coffee Road, Suite 4
Modesto, CA 95355
209-569-0778
Hassan Hussain, MD
cardiology
1425 West H Street, Suite 300
Oakdale, CA 95361
209-521-9661
James Shu, MD
anesthesiology
350 South Oak Avenue
Oakdale, CA 95361
209-847-3011
James Yip, MD
gynecology
1552 Coffee Road, 1st floor
Modesto, CA 95355
209-521-4372
Jeffrey Mark, MD
gastroenterology
2101 Geer Road, Suite 118
Turlock, CA 95382
209-669-5000
Jennifer Cordier, MD
pediatrics
250 S. Oak Ave., Suite A-1
Oakdale, CA 95361
209-848-8133
John Martin, MD
radiology
1524 McHenry Ave, #430
Modesto, CA 95350
209-577-4444
Jose Mari Santos, MD
nephrology
608 E. Orangeburg AVe.
Modesto, CA 95350
209-529-2645
Joydev Acharya, MD
cardiology
1425 West H Street, Suite 300
Oakdale, CA 95361
209-521-9661
Kent Wong, MD
cardiology
1425 West H Street, Suite 300
Oakdale, CA 95361
209-521-9661
Krystyna Belski, MD
pediatrics
1420 West H Street
Oakdale, CA 95361
209-848-4180
Lee Horwitz, MD
family-practice
1425 West H Street, Suite 200
Oakdale, CA 95361
209-848-1005
Leslie Konkin, MD
orthopedics
1425 West H Street, Suite 300
Oakdale, CA 95361
209-847-2254
Luke Romero, MD
anesthesiology
350 South Oak Avenue
Oakdale, CA 95361
209-847-3011
Mark Cook, MD
family-practice
1425 West H Street, Suite 200
Oakdale, CA 95361
209-848-1005
Mark Tidyman, MD
anesthesiology
350 South Oak Avenue
Oakdale, CA 95361
209-847-3011
Marnelli Bautista-Quach, MD
pathology
2625 Coffee Road, Suite S
Modesto, CA 95355
209-577-1200
Mohsen El Ramah, MD
nephrology
608 E. Orangeburg Ave.
Modesto, CA 95350
209-529-2645
Mutahir Khan, MD
cardiology
1425 West H Street, Suite 300
Oakdale, CA 95361
209-521-9661
Pardeep Brar, MD
gastroenterology
2209 Coffee Rd, Suite M
Modesto, CA 95355-2360
209-624-8778
Philip Edington, MD
ophthalmology
1425 West H Street, Suite 340
Oakdale, CA 95361
209-847-2780
Rajesh Dubey, MD
cardiology
1425 West H Street, Suite 300
Oakdale, CA 95361
209-521-9661
Robert Cash, MD
orthopedics
1425 West H Street, Suite 300
Oakdale, CA 95361
209-847-2254
Robert Lynch, MD
general-surgery
2603 Patterson Road, Suite 1
Riverbank, CA 95367
209-869-2566
Steven Wunschel, MD
urology
McHenry Medical Group, 1541 Florida Avenue, Suite 200
Modesto, CA 95350
209-577-3388
Tammy Wu, MD
plastic-and-reconstructive-surgery
2336 Sylvan Ave, Suite C
Modesto, CA 95355
209-551-1888
Tong Sun, MD
nephrology
305 E. granger Ave., Suite 202
Modesto, CA 95350
209-526-1606
Tony Tam, MD
general-surgery
1401 Spanos Court #127
Modesto, CA 95355
209-525-3848
Upinder Basi, MD
general-surgery
1425 West H Street, Suite 380
Oakdale, CA 95361
209-847-0314
Uzay Yasar, MD
urology
McHenry Medical Group, 1541 Florida Avenue, Suite 200
Modesto, CA 95350
209-577-3388
Warren Gee, MD
anesthesiology
350 South Oak Avenue
Oakdale, CA 95361
209-847-3011

Note: All physicians furnishing services to the patient, including but not limited to, emergency physicians, radiologists, pathologists, and anesthesiologists are INDEPENDENT PRACTITIONERS and are NOT EMPLOYEES, REPRESENTATIVES OR AGENTS OF THE HOSPITAL.