Dr. Siamak Milanchi, MD

Dr. Siamak Milanchi, MD

Colon & Rectal Surgery  ·  
Male  ·  
Age 47
Dr. Siamak Milanchi, MD is a colon & rectal surgery specialist in Irvine, CA and has been practicing for 9 years. He graduated from Tehran University Of Medical Sciences, Faculty Of Medicine in 1996 and specializes in colon & rectal surgery, general surgery, and more.

16300 Sand Canyon Ave Ste 604

Irvine, CA 92618

Contact Information

(949) 429-0268

Insurance Accepted

  • Aetna
  • Anthem Blue Cross
  • Blue Cross Blue Shield of California
  • CalOptima
  • Cigna
  • Health Net
  • HealthCare Partners
  • Humana
  • Monarch Healthcare
  • 2 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Milanchi

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Milanchi performs your care needs compared to other doctors.

more than 51% of peers
Colon and Rectal Surgery
more than 39% of peers
Laparoscopic Surgical Procedure
more than 18% of peers

Dr. Milanchi's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

3  Specialties

  • Colon & Rectal Surgery
  • General Surgery
  • Proctology

2  Board Certifications

  • Colon & Rectal Surgery
    Accredited by: American Board of Colon & Rectal Surgery*
  • General Surgery
    Accredited by: American Board of Surgery*

17  Conditions Treated

29  Procedures

  • Colectomy
  • Colectomy and Sigmoidectomy With Robotic Assistance
  • Colon and Rectal Surgery
  • Colon Cancer Screening
  • Colon Surgery
  • Colonoscopy
  • Colonoscopy With Polypectomy
  • Colorectal Surgery, Robotic-Assisted
  • Endoscopic Mucosal Resection
  • Enterostomy (Laparoscopic or Open)
  • Excision of Rectal Tumor
  • Fistulectomy or Fistulotomy, Anal
  • Hemorrhoid Banding
  • Hemorrhoid Removal
  • Hemorrhoid Treatment
  • Hemorrhoidectomy or Excision of Anal Tags
  • Hernia Repair
  • Incisional Hernia Repair, Laparoscopic
  • Infrared Coagulation (IRC) Hemorrhoid Removal
  • Laparoscopic Sigmoidectomy With Robotic Assistance
  • Laparoscopic Surgical Procedure
  • Non-Surgical Treatment of Hemorrhoids
  • Open Incisional and-or Ventral Hernia Repair
  • Proctectomy, Open or Laparoscopic (incl. Swenson and Duhamel Procedures)
  • Proctosigmoidopexy With Robotic Assistance
  • Removal of Reproductive Organs (Hysterectomy, Oophorectomy, Salpingectomy, Salpingo-Oophorectomy, Resection of Peritoneal Malignancy)
  • Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
  • Sphincterotomy
  • Transanal Endoscopic Microsurgery (TEM)

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Tehran University Of Medical Sciences, Faculty Of Medicine
    Medical School | Graduated 1996
  • La County King-Drew Medical Center
    Internship Hospital | Completed 2004
  • Cedars-Sinai Medical Center
    Residency Hospital | Completed 2008
  • University Of Southern California
    Fellowship Hospital | Completed 2009
  • Bonn University Hospital
    Other Education | Completed 2002

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Milanchi has no media or publications listed.

Languages Spoken

  • English
  • Farsi

Memberships & Professional Affiliations

Dr. Milanchi does not have any memberships or affiliations listed. If you are Dr. Milanchi and would like to add memberships or affiliations, please update your profile.

Dr. Milanchi's Reviews

Likelihood of recommending Dr. Milanchi to family and friends
80 total reviews (27 have comments)

Likelihood to Recommend (80)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Milanchi's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes

Patient Comments (27)

It was a great experience with Dr.Milanchi and his staff. I deeply appreciate Dr. Milanchi taking time to fully explain all the procedures and to listen to my concerns during every single visits! Many thanks to the wonderful doctor and his passionate office manager Eunice. It is amazing that this...more
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
He was fantastic! No-one wants to go have their butt looked at. Right? But there are times when that area needs medical attention. And he made it as least embarrassing for me as possible. And he is a great surgeon - the results were wonderful! I suffered for 21 years the effects of tearing at...more
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
Dr Milanchi is a Godsend. I was originally referred to him by my internist due to sever, constant pain in my rectum along with spasms. This is a very embarrassing, humbling position to find yourself in and his colleagues put my mind at ease. Dr Milanchi and his staff are kept insanely busy due to...more
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
I had an absolutely wonderful experience with Dr. Milanchi. He is one of the few and much valued doctors who is not only great at what he does, but who also has a great bedside manner. He treated me with tremendous care, explained everything carefully & thoroughly, and was really good at following...more
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
I think Dr. Milanchi is an excellent doctor and his staff is top notch. He took his time explaining everything and answering my questions. I also appreciated his directness and honesty. My surgery was relatively minor, but Dr. Milanchi took extra measures to make sure that I would have the best...more
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
Image of Dr. Milanchi
Are you Dr. Milanchi?
Make it easy for patients to share their feedback. Also manage your personalized profile!

Nearby doctors with similar experience

General Surgery
Bariatric Surgery
General Surgery
Colon & Rectal Surgery
Colon & Rectal Surgery
General Surgery
Colon & Rectal Surgery
Colon & Rectal Surgery
General Surgery