Our Services

Gastroenterology

St. Joseph Health Medical Group provides expert diagnosis and treatment of all types of gastrointestinal diseases and digestive disorders, from inflammatory bowel disease to gastroesophageal reflux disease (GERD). Our highly skilled physicians offer advanced diagnostic and treatment options, with a patient-centered approach to care.

The Digestive Care Center in Santa Rosa aims to provide comprehensive gastrointestinal care to surrounding communities. We are pleased to offer Endoscopic Ultrasound (EUS) to augment our biliary and oncologic services. EUS allows ultrasound imaging and biopsy of the gastrointestinal mucosal layers and can often enhance and alter management and treatment options.

Procedures

At St. Joseph Health Medical Group , our highly skilled physicians provide patient-centered care with a variety of advanced diagnostic and treatment options including:

  • Capsule Endoscopy
    • Small Bowel Video Capsule Endoscopy
    • Smart Pill Measurement of Transit Time
  • Colonoscopy
  • ERCP
  • Esophageal Manometry
  • Esophageal pH Testing
  • Flexible Sigmoidoscopy
  • Hemorrhoid Treatment
    • Banding
  • Upper Endoscopy​

View Our Locations

Gastroenterology – Digestive Care Center

Gastroenterology - Harrison

Gastroenterology - Walford

Meet Our Providers

Razi M. Arifuddin MD (707) 303-8349
Gastroenterology (Board Certified)

M-F: 8:30 a.m. - 4:30 p.m. (Phones turned off for lunch between 12:00 noon- 1:30 p.m.)

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Office :
St. Joseph Health Medical Group
500 Doyle Park Drive
Suite G04
Santa Rosa, CA 95405
Joshua P. Beirne MD (707) 303-8349
Gastroenterology (Board Certified)

M-F: 8:30 a.m. - 4:30 p.m. (Phones turned off for lunch between 12:00 noon- 1:30 p.m.)

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Office :
St. Joseph Health Medical Group
500 Doyle Park Drive
Suite G04
Santa Rosa, CA 95405
Office 1:
1383 North McDowell Blvd
Ste. 110A
Petaluma, CA 94954

Office 2:
Petaluma Valley Hospital
400 N. McDowell Blvd
Petaluma, CA 94954
Adriena Kajdos MD (707) 443-9371
Gastroenterology (Board Certified)

Tuesday: 1:20p.m.-4:00pm, Wednesday: 8:00 am-11:00am

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Office :
St. Joseph Health Medical Group
2280 Harrison Avenue
Suite B
Eureka, CA 95501
Michael Lustberg MD (707) 303-8349
Gastroenterology (Board Certified)

M-F: 8:30 a.m. - 4:30 p.m. (Phones turned off for lunch between 12:00 noon- 1:30 p.m.)

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Office :
St. Joseph Health Medical Group
500 Doyle Park Drive
Suite G04
Santa Rosa, CA 95405
Thomas Morales MD (707) 303-8349
Gastroenterology (Board Certified)

Hours: Monday -Friday : 8:30 a.m. - 4:30 p.m. (Phones are turned off for lunch between 12:00 noon- 1:30 p.m.

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Office :
St. Joseph Health Medical Group
500 Doyle Park Drive
Suite G04
Santa Rosa, CA 95405
Otis Stephen MD (707) 303-8349
Gastroenterology (Board Certified)

Please call our office for Dr. Stephen's hours of availability.

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Office :
St. Joseph Health Medical Group
500 Doyle Park Drive
Suite G04
Santa Rosa, CA 95405
Kusum Stokes MD (707) 443-4869
Gastroenterology (Board Certified)

M-F: 8a-5p

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Office :
St. Joseph Health Medical Group
3200 Walford Ave.
Suite A
Eureka, CA 95503