arrow
  • Gastroenterology, Internal Medicine
  • 43 years of experience
  • Virginia Mason Lynnwood 19116 33rd Ave W, Lynnwood, WA 98036
  • (425) 712-7900

Brief Intro

Dr. Drennan graduated from the Yale University School of Medicine in 1982. He works in Lynnwood, WA and 5 other locations and specializes in Gastroenterology and Internal Medicine. Dr. Drennan is affiliated with Virginia Mason Hospital.

View More

Education Background

RESIDENCY

University Of Washington Medical Center

MEDICAL SCHOOL

Yale University School Of Medicine - 1982

Languages Spoken

  • English
  • Chinese

Location & Hours

  • Virginia Mason Medical Center Clinic
  • 19116 33rd Ave W, Lynnwood, WA 98036
  • Mon:7:00 am - 7:00 pm
    Tue:7:00 am - 7:00 pm
    Wed:7:00 am - 7:00 pm
    Thu:7:00 am - 7:00 pm
    Fri:7:00 am - 5:00 pm
    Sat:9:00 am - 2:00 pm
    Sun:Closed

Specialties Treated

  • Gastroenterology
  • Internal Medicine

Conditions Addressed

  • Intussusception
  • Gastrointestinal Hemorrhage
  • Esophagitis
  • Cholelethiasis or Cholecystitis
  • Diverticulitis
  • Diverticulosis
  • Gastritis and Duodenitis
  • Acute Pancreatitis
  • Anal or Rectal Abscess
  • Anal Fissure
  • Inflammatory Bowel Disease (IBD)
  • Celiac Disease
  • Liver Cancer
  • Malignant Neoplasm of Colon
  • Intestinal Obstruction
  • Irritable Bowel Syndrome (IBS)
  • Constipation
  • Gastroesophageal Reflux Disease (GERD)
  • Benign Polyps of the Colon
View More

Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Medicaid
  • AARP
  • Cancer 20
  • Cardiology, Heart & Vascular Surgery 15
  • Orthopedics 36
  • Neurology & Neurosurgery 21
  • Gastroenterology & GI Surgery 32
  • Pulmonology & Lung Surgery 33
  • Diabetes & Endocrinology 12
  • Children's Hospital 4
  • Urology 30
  • Psychiatry 16
  • Geriatrics 33
  • Rehabilitation 13
  • Obsterics & Gynecology 4
  • Ear, Nose & Throat 4
  • Rheumatology 1
  • Long Term Care 1
  • Maternity Care (Uncomplicated Pregnancy) 15