We understand that visiting the gastroenterologist may be a new experience for you and that you may be in pain or worried about your health. That?s why all the staff at the Santa Maria Digestive Diagnostic Center and Santa Maria Gastroenterology focus on making you feel comfortable and confident in our care. Our physicians and our medical team take extra care to listen to your concerns, answer all your questions and thoroughly explain your condition and treatment options. Dr. Hsia is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are Enlarged Liver, Familial Adenomatous Polyposis, Gardner Syndrome, Gastrectomy, and Endoscopy.

I strive to provide my patients with the best medical care possible. Dr. Weiss is rated as an Experienced provider by MediFind in the treatment of Ascites. Her top areas of expertise are Hypothyroidism, Obesity in Children, Visceromegaly, and Enlarged Liver.

Erik Olson is a Radiologist in Pismo Beach, California. Dr. Olson is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are Ascites, Gallbladder Disease, Pleurisy, and Breast Lump.

Dr. Quezada earned his Doctor of Medicine degree from TexasA&M Health Science Center College of Medicine. He is Board Certified in Internal Medicine and completed his Internal Medicine and Gastroenterology/Hepatology training from Los Angeles County/University of Southern CaliforniaMedical Center. He’s skilled in general GI procedures as well as EndoscopicRetrograde Cholangiopancreatography (ERCP) and performs this procedure at the French Hospital Advanced GI Lab. While in medical school, Dr. Quezada developed a health care program for medical students to participate in treatment of migrant farm worker patients. Dr. Quezada is fluent in Spanish ❝ My care philosophy is to work with my patients to developtheir health goals and do all that is possible to assist themin achieving those goals.❞—Michael Quezada, MD. Dr. Quezada is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Familial Adenomatous Polyposis, Toxic Megacolon, Gardner Syndrome, Endoscopy, and Gastrectomy.

Robert Kvalstad is a Radiologist in Arroyo Grande, California. Dr. Kvalstad is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Ascites, Chronic Cough, Vertigo, and Progressive Familial Intrahepatic Cholestasis Type 3.

William Ashley is a Radiologist in Arroyo Grande, California. Dr. Ashley is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Diverticular Disease, Vertigo, Chronic Cough, and Ascites.

Accessible and Comprehensive Quality Health Care Services. Dr. Bhat is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Familial Hypertension, and Hypertension.

Mark Barton is a Radiologist and an Interventional Radiologist in Arroyo Grande, California. Dr. Barton is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are Pleurisy, Pleural Effusion, Ascites, and Melorheostosis with Osteopoikilosis.

Mario Cedillo is an Interventional Radiologist in Arroyo Grande, California. Dr. Cedillo has been practicing medicine for over 10 years and is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are Ascites, Pleurisy, Pleural Effusion, Gallbladder Disease, and Prostatic Artery Embolization. Dr. Cedillo is currently accepting new patients.

Fred Vernacchia is a Radiologist in San Luis Obispo, California. Dr. Vernacchia is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are WT1-Related Wilms Tumor Syndromes, Ascites, Herniated Disk, and Galactocoele.

Kenneth Krone is a Radiologist in San Luis Obispo, California. Dr. Krone is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are Aicardi-Goutieres Syndrome, X-Linked Intellectual Disability, Siderius Type, PEHO Syndrome, and Mohr-Tranebjaerg Syndrome.

Board Certification: Certified by American Board of Internal Medicine, GastroenterologyFellowship Training: Duke University Medical CenterInternship and Residency: University of California, San Diego Medical CenterMedical School: University of Texas Southwestern Medical SchoolProfessional Memberships: Member, American Gastroenterological AssociationMember and Fellow, American College of Gastroenterology. Dr. Mundorf is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Lower Esophageal Ring, Benign Esophageal Stricture, Endoscopy, and Colonoscopy.

John Newlander is a primary care provider, practicing in Family Medicine and Internal Medicine in Arroyo Grande, California. Dr. Newlander is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Sepsis, Ogilvie Syndrome, Acute Cystitis, Hip Replacement, and Endoscopy.

Ijeoma Ofiaeli is a primary care provider, practicing in Internal Medicine in Arroyo Grande, California. Dr. Ofiaeli is rated as an Experienced provider by MediFind in the treatment of Ascites. Her top areas of expertise are Sepsis, Stroke, Ogilvie Syndrome, Gastrostomy, and Endoscopy.

Jacob Mayor is a primary care provider, practicing in Internal Medicine in Arroyo Grande, California. Dr. Mayor is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Sepsis, Gastrointestinal Bleeding, Ogilvie Syndrome, Gastrostomy, and Endoscopy.

Yosef Diab is a primary care provider, practicing in Internal Medicine in Arroyo Grande, California. Dr. Diab is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Ogilvie Syndrome, Sepsis, Hepatorenal Syndrome, and Gastrointestinal Bleeding.

Kristen Kieley is a Radiologist in San Luis Obispo, California. Dr. Kieley has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Ascites. Her top areas of expertise are Breast Lump, Galactocoele, Angiomyoma, and Uterine Fibroids.

Kenneth Spearman is an Interventional Radiologist in Arroyo Grande, California. Dr. Spearman is rated as an Experienced provider by MediFind in the treatment of Ascites. His top areas of expertise are Varicose Veins, Tenosynovitis, Nasal Flaring, Venous Insufficiency, and Gastrostomy.

Karan Gulaya is an Interventional Radiologist and a Radiologist in San Luis Obispo, California. Dr. Gulaya is rated as an Advanced provider by MediFind in the treatment of Ascites. His top areas of expertise are Ascites, Pleurisy, Pleural Effusion, and Gallbladder Disease.

Rahim Raoufi is a Gastroenterologist in Nipomo, California. Dr. Raoufi is rated as a Distinguished provider by MediFind in the treatment of Ascites. His top areas of expertise are Hepatitis, Enlarged Liver, Alcoholic Cirrhosis, Gastrectomy, and Colonoscopy.