Dr. Mark Isaak Semis MD is a male Emergency Medicine Specialist, has 37 years of experience and practices in Emergency Medicine, Family Medicine, and General Practice.
Dr. Mark Semis has 2 office locations.
199 E Webster St
Colusa, CA 95932

Phone Number
Locations and availability (2)
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

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

Education & Awards

Dr. Semis graduated from Chernovisky Medical Institute, Chernovcy. He has 1 awards.



Dr. Semis has 3 hospital affiliations:

  • Straub Clinic and Hospital 
  • Mercy Hospital 
  • Community Of MontereyMonterey,Ca 

Accepted Insurance Plans

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

  • Blue Cross Blue Shield of Hawaii - 4 plans
  • WellCare - 1 plan
  • Evercare - 3 plans
  • Humana - 3 plans


  • Russian

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Additional Information
Where does Dr. Mark I. Semis practice?
Dr. Mark Semis practices Emergency Medicine, Family Medicine, and General Practice near Colusa, CA.
Additional practice locations include: Honolulu, HI.
See Colusa Emergency Physicians, Colusa Family Physicians, and Colusa General Practitioners.