Summary

Dr. Lukejohn Day is a gastroenterologist who also practices internal medicine, bringing comprehensive digestive health expertise to his patients. He earned his medical degree from Stanford University School of Medicine and has been practicing for 22 years, developing extensive experience in diagnosing and treating complex gastrointestinal conditions. Dr. Day speaks English and provides care with the depth that comes from more than two decades in medicine.

Dr. Day practices at Zuckerberg San Francisco General Hospital and Trauma Center and is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California. He specializes in treating conditions such as proctitis and gastritis, helping patients manage inflammatory digestive disorders. His procedural expertise includes performing colonoscopies and specialized endoscopic procedures for comprehensive digestive health evaluation. Patients have given him an average rating of 5.0, reflecting their confidence in his care.
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Quick Facts

  • 5
  • 22 years of experience
  • speaks English
  • Stanford University School Of Medicine
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 1 office location
  • Male

Office Location

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Dr. Lukejohn Welch Day, MDDr. Amanda CheungDr. Alice ChengDr. Mounzer Al Samman, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
22 Years of Experience 16 Years of Experience 17 Years of Experience 39 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Chinese, Spanish Speaks Spanish, English
San Francisco , CAEmeryville , CARedwood City , CAVacaville , CA
Med School: Stanford University School Of Medicine Med School: University Of South Carolina School Of Medicine Columbia Med School: Univ Of Chicago Division Of Biological Sciences Pritzker School Of Medicine Med School: University Of Aleppo Faculty Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Lukejohn Welch Day

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Lukejohn Welch Day has the following 2 specialties

Specialty Expertise

Dr. Lukejohn Welch Day has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

22 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2025, Expired

EDUCATION & TRAINING

Medical School

Stanford University School Of MedicineGraduated in 2004

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Frequently Asked Questions

Is Dr. Lukejohn Day accepting new patients?
Dr. Lukejohn Day has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Lukejohn Day speak?
Dr. Lukejohn Day speaks English.
Where is Dr. Lukejohn Day's office located?
Dr. Lukejohn Day's office is located at 1001 Potrero Ave, San Francisco, CA, 94110.
Does Dr. Lukejohn Day accept my insurance?
You can see the insurance plans that Dr. Lukejohn Day accepts on their Vitals profile.
How can I make an appointment with Dr. Lukejohn Day?
You can find contact information for Dr. Lukejohn Day here on Vitals.

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