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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).

Patient Reviews

Patient comments (7)

The overall average patient rating of Dr. Siamak Milanchi, Surgeon, Colon & Rectal Surgeon is Good. Dr. Milanchi has been reviewed by 20 patients who have provided 7 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 4.8

Specialties & Research

Dr. Siamak Milanchi, MD is board certified in Surgery.

  • He has special expertise in 9 areas:
  • Anal Cancer (Anus Neoplasms)
  • Colon Cancer
  • Colonoscopy
  • Colorectal Surgery
  • Diverticulitis
  • Hemorrhoids
  • Laproscopic Surgery (Laparoscopy)
  • Rectal Cancer
  • Vaginal Fistula

Education & Awards

Dr. Milanchi graduated from Tehran School Of Medical Sciences. He has 3 awards.

Patients' Choice Award (2014)
Top 10 Doctor - City (2014)
Fountain Valley, CA
On-Time Doctor Award (2014)


Dr. Milanchi has 4 hospital affiliations:

  • Hoag Memorial Hospital Presbyterian 
  • Orange Coast Memorial Medical Center 


  • Farsi
  • Persian
  • Korean

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Additional Information
Dr. Siamak Milanchi MD is a male Colon/Rectal Surgeon, has 15 years of experience and practices in Colon & Rectal Surgery and Surgery.
Where does Dr. Siamak Milanchi practice?
Dr. Siamak Milanchi has 3 office locations.
Dr. Siamak Milanchi practices Colon & Rectal Surgery and Surgery near Irvine, CA.
Additional practice locations include: Fountain Valley, CA.
See Irvine Colorectal Surgeons and Irvine Surgeons.