4.3
6 Ratings with 1 written Review
Summary
Dr. Man-Siak Mak is a gastroenterologist and internal medicine physician with 58 years of experience treating digestive system disorders and providing comprehensive internal medicine care. He earned his medical degree from the National Defense Medical Center in Taiwan and completed his residency at St. Clares Hospital and Healthcare Center. Dr. Mak is multilingual, speaking Chinese, English, Portuguese, and Spanish.
Dr. Mak practices at Mercy Medical Center and multiple locations throughout Merced, California. He specializes in treating conditions such as hemorrhoids, colon polyps, and abdominal pain. His expertise includes performing colonoscopy, lower gastrointestinal endoscopy, and laparoscopy procedures. Patients have given Dr. Mak an average rating of 4.3 out of 5 stars on Vitals.
Dr. Mak practices at Mercy Medical Center and multiple locations throughout Merced, California. He specializes in treating conditions such as hemorrhoids, colon polyps, and abdominal pain. His expertise includes performing colonoscopy, lower gastrointestinal endoscopy, and laparoscopy procedures. Patients have given Dr. Mak an average rating of 4.3 out of 5 stars on Vitals.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 58 years of experience
- speaks Chinese, English, Portuguese, Spanish
- St Clares Hospital And Healthcare Center
- 1 written review
- 2 specialties
- 11 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 4 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Man-Siak Mak has 4 locationsUniversity Surgery Center
1390 E Yosemite Ave Ste BMerced, CA 95340 Tel: (209) 580-3400
Mon6:30 am - 5:00 pm
Tue6:30 am - 5:00 pm
Wed6:30 am - 5:00 pm
Thu6:30 am - 5:00 pm
Fri6:30 am - 4:30 pm
SatClosed
SunClosed
Timothy S Johnston Md And Associates
3170 Collins Dr Ste BMerced, CA 95348Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Timothy S Johnston Md And Associates
410 E Yosemite Ave Ste BMerced, CA 95340 Tel: (209) 934-8077
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Man-Siak Mak, MD | Ji Soo Choi, APRN | Theresa Obonyano, APRN | Ashley Anderson, APRN |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 58 Years of Experience | |||
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks Chinese, English, Portuguese, Spanish | Speaks English | Speaks English | Speaks English |
| Merced , CA | SACRAMENTO , CA | SACRAMENTO , CA | Sacramento , CA |
| Med School: Natl Defense Med Ctr Taiwan (244-03 Eff 1/1971) | Med School: New York University | Med School: The University of Texas Health Science Center at Houston | Med School: East Tennessee State University - Quillen College of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Man-Siak Mak
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Man-Siak Mak has the following 2 specialties
Specialty Expertise
Dr. Man-Siak Mak has the following 11 areas of expertise
Certifications, License, & Education
58 Years Experience
Dr. Man-Siak Mak holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California that expires in 2026.
Education & Training
Residency
Completed their residency at St Clares Hospital And Healthcare Center.
Medical School
Graduated from Natl Defense Med Ctr Taiwan (244-03 Eff 1/1971) in 1968.
NPI Number
Dr. Mak's NPI number is 1609875004.
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Frequently Asked Questions
- Is Dr. Man-Siak Mak accepting new patients?
- Dr. Man-Siak Mak is accepting new patients on Vitals. View Dr. Man-Siak Mak's profile on Vitals to make an appointment.
- Does Dr. Man-Siak Mak accept my insurance?
- You can see the insurance plans that Dr. Man-Siak Mak accepts on their Vitals profile.
- Where is Dr. Man-Siak Mak's office located?
- Dr. Man-Siak Mak's office is located at 1390 E Yosemite Ave Ste B, Merced, CA, 95340.
- Which hospitals is Dr. Man-Siak Mak affiliated with?
- Dr. Man-Siak Mak is affiliated with Mercy Medical Center.
- How can I make an appointment with Dr. Man-Siak Mak?
- You can find contact information for Dr. Man-Siak Mak here on Vitals.
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