> > > > Dr. Man-Siak Mak, MD
Dr. Man-Siak Siak Mak MD is a male General Practitioner, has 42 years of experience and practices in Internal Medicine, Gastroenterology, and General Practice.
Dr. Man-Siak Mak has 1 office location.
3313 M St
Merced, CA 95348

Phone Number
Locations and availability (1)
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Man-Siak Mak, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. Mak graduated from National Defense Medical Center, Taipei.


Dr. Mak has 2 hospital affiliations:

  • Mercy Medical Center, Merced - Community Campus 
  • Mercy Medical Center Merced 

Accepted Insurance Plans

Dr. Mak accepts these health insurances in at least one office:

  • United Healthcare - 17 plans
  • Blue Shield of California - 88 plans
  • Great-West Healthcare - 3 plans
  • Unicare - 12 plans
  • Anthem Blue Cross - 9 plans
  • Aetna - 2 plans


  • Chinese
  • Cantonese
  • Mandarin

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Additional Information
Where does Dr. Man-Siak S. Mak practice?
Dr. Man-Siak Mak practices Internal Medicine, Gastroenterology, and General Practice near Merced, CA.
See Merced Internists, Merced Gastroenterologists, and Merced General Practitioners.