Dr. Siamak Milanchi, MD

Colorectal Surgery •  Male • Age 49
  
Dr. Milanchi
Accepting new patients

Irvine Colorectal Surgery

16300 Sand Canyon Ave Ste 604 Irvine, CA 92618

Make an Appointment

(949) 429-0268

Dr. Siamak Milanchi, MD is a Colorectal Surgery Specialist in Irvine, CA and has over 24 years of experience in the medical field. He graduated from Tehran University Of Medical Sciences, Faculty Of Medicine medical school in 1996. He is affiliated with medical facilities Hoag Hospital Newport Beach and Orange Coast Memorial Medical Center. He is accepting new patients. Be sure to call ahead with Dr. Milanchi to book an appointment.


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At a Glance

  • Recent Reviews
    Reviews made in the last 30 days. See reviews
  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals

Insurance Check

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Dr. Milanchi accepts

Accepted insurance can change. Please double-check when making an appointment.

(949) 429-0268

Dr. Milanchi accepts the following insurance:

Aetna
Basic HMO
Anthem
Access for Infants & Mothers (AIM)-CA HMO
Advantage-CA HMO
Advantage-CA PPO
Balanced (Prudent Buyer)-CA PPO
Blue Cross (CACare) - Individual-CA HMO
Blue Cross (CACare) - Large Group-CA HMO
Blue Cross (CACare) - Small Group-CA HMO
Blue Cross (Prudent Buyer) - Individual-CA PPO
Blue Cross (Prudent Buyer) - Large Group-CA PPO
Blue Cross (Prudent Buyer) - Small Group-CA PPO
Blue Cross (Prudent Buyer) - Student Health-CA PPO
Blue Cross-CA HMO-POS
Bronze (Prudent Buyer PPO/ Small Grp)-CA PPO
Bronze EPO (Prudent Buyer / Small Grp)-CA PPO
Bronze EPO (Prudent Buyer EPO/ Small Grp)-CA
Bronze w/ H.S.A (Prudent Buyer PPO/Small Grp)-CA PPO
Dignity Health Custom Advantage-CA HMO
Dignity Health EPO / PPO-CA
Dignity Health PHC EPO & HDP/HSA-CA
Dignity Health Ventura EPO/PPO-CA
EPO-CA
Gold (CaliforniaCare HMO/ Small Grp) HMO
Gold (Prudent Buyer PPO/ Small Grp)-CA PPO
Gold Advantage-CA PPO
Gold EPO (Prudent Buyer / Small Grp)-CA PPO
Gold EPO (Prudent Buyer EPO/ Small Grp)-CA
Gold Priority Select-CA HMO
Gold Select (Select / Small Grp)-CA HMO
Lumenos Plans-CA PPO
Major Risk Medical Insurance Program (MRMIP) - Prudent Buyer-CA PPO
MemorialCare Custom-CA PPO
National (BlueCard Basic) PPO
National (BlueCard) PPO
PERS Choice / PERSCare Providers-CA PPO
PERS Traditional-CA HMO
Platinum (CaliforniaCare HMO/ Small Grp) HMO
Platinum (Prudent Buyer PPO/ Small Grp)-CA PPO
Platinum Priority Select-CA HMO
Platinum Select (Select / Small Grp)-CA HMO
Priority Select-CA HMO
Select Plus-CA HMO
Select-CA HMO
Silver (CaliforniaCare HMO/ Small Grp) HMO
Silver (Prudent Buyer PPO/ Small Grp)-CA PPO
Silver Advantage-CA PPO
Silver EPO (Prudent Buyer EPO/ Small Grp)-CA
Silver EPO w/ H.S.A (Prudent Buyer/Small Grp)-CA PPO
Silver Priority Select-CA HMO
Silver Select (Select / Small Grp)-CA HMO
Silver w/ H.S.A (Prudent Buyer PPO/Small Grp)-CA PPO
Tenet Network-CA PPO
Traditional
Traditional PPO
UC Care-CA PPO
UC CORE-CA PPO
UC Health Savings Plan-CA
UC High Option Supplement to Medicare-CA
UC Medicare with Prescription Drugs-CA PPO
UC Medicare without Prescription Drugs-CA PPO
UC Resident and Fellows-CA PPO
UCSHIP-CA PPO
USC Plan (Two Tiered Network)-CA HMO
Anthem Blue Cross
Blue Cross Blue Shield of California
Advantage Preferred DirectAccess Plus PPO
Priority Select HMO
Select Plus HMO
Blue Shield of California
Access Plus Savenet
CalOptima
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
LocalPlus
Open Access Plus
Health Net
HealthCare Partners
Humana
Molina Healthcare
Monarch Healthcare
MultiPlan
UnitedHealthCare
United Healthcare

Background Check

No malpractice claims found for California
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Milanchi's experience treating your condition or procedure

Dr. Milanchi's Top Procedures and Conditions

Treatment Frequency
Anal Fissure
very high
very high

Treatment Frequency

Dr. Milanchi treats Anal Fissure more than 96% of his peers

Dr. Milanchi treats this condition more than 96% of his peers

Anal Fistula
high
high

Treatment Frequency

Dr. Milanchi treats Anal Fistula more than 87% of his peers

Dr. Milanchi treats this condition more than 87% of his peers

Hemorrhoids
high
high

Treatment Frequency

Dr. Milanchi treats Hemorrhoids more than 85% of his peers

Dr. Milanchi treats this condition more than 85% of his peers

Dr. Milanchi's conditions and procedures:

  • Anal Cancer
  • Anal Fissure
  • Anal Fistula
  • Anal or Rectal Pain
  • Anal Prolapse
  • Anorectal Abscess
  • Colectomy
  • Colectomy and Sigmoidectomy With Robotic Assistance
  • Colon and Rectal Surgery
  • Colon Cancer
  • Colon Polyp
  • Colonic Diverticulosis
  • Constipation
  • Enterostomy (Laparoscopic or Open)
  • Excision of Rectal Tumor
  • Fistulectomy or Fistulotomy, Anal
  • Hemorrhoidectomy or Excision of Anal Tags
  • Hemorrhoids
  • Hernia Repair
  • Incisional Hernia Repair, Laparoscopic
  • Inflammatory Bowel Disease
  • Laparoscopic Surgical Procedure
  • Open Incisional and-or Ventral Hernia Repair
  • Proctectomy, Open or Laparoscopic (incl. Swenson and Duhamel Procedures)
  • Proctosigmoidopexy With Robotic Assistance
  • Rectal Bleeding
  • Rectal Cancer
  • Rectal Prolapse
  • Rectovaginal Fistula
  • 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)
  • Repair of Anal and Rectal Defects (Anoplasty, Repair of Imperforate Anus, Sphincteroplasty, Rectal Graft)
  • Sphincterotomy
  • Ulcer
  • Ulcerative Colitis

Help Improve Healthgrades

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Communicate via email?

Offer weekend visits?

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Offer telehealth services or virtual visits?

Dr. Milanchi's Reviews

Likelihood to recommend Dr. Milanchi

4.7

Based on 107 ratings

5 Stars
88.78504672897196%
(95)
4 Stars
2.803738317757009%
(3)
3 Stars
0.9345794392523364%
(1)
2 Stars
0%
(0)
1 Star
7.4766355140186915%
(8)
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Dr. Milanchi?
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Dr. Milanchi was great. He answered all my questions and had I never waited longer than 5 minutes to be seen. The surgery also went very well!
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Steven – Jul 21, 2020
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For anyone that may need the services of a Colon & Rectal Surgeon Doctor Siamak Milanchi IS the Specialist you are looking for! …. Period!! Dr. Milanchi is a surgeon that tells you Exactly what to expect and has the Years of experience that fully supports what he says!!!! If you are looking for a Specialist that IS Simply the BEST!!!! Doctor Siamak Milanchi IS the Doctor you are looking for and hoping to find …. YES Dr. Milanchi IS Highly Recommended!!!!
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Manny Favela – May 10, 2020
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From the first visit Dr. Milanchi and staff were very helpful and upfront with my individual needs. Dr. Milanchi took time to review my medical records and talk about what would happen before ,during and after my surgery...I never felt rushed and I felt Dr. Milanchi really listened to my fears and concerns..The Doctor was clear to explain all my questions until I felt I truly understood in language I could understand not medical terminology...in addition I would need time off from my work and the Doctor and staff were quick to take care of any paperwork for my employer and for Disability benefits...All I can say is that I am very grateful and 100% satisfied with my surgery and recovery time...I truly will recommend Dr.milanchi to anyone who my need this type of surgery! Thank you!!
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Jennie Hernandez – Mar 12, 2020
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I find Dr. Milanchi, very professional and really cares about his patients! To many doctors today , are very cold and clinical, but not Dr. Milanchi! He always takes time to answer any questions or concerns! He is a treasure! On a scale of 1-10, I would give him a “10”! Also his staff is superb! I highly recommend their services!
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Frans Dorris – Feb 06, 2020
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I had my fistulotomy with Milanchi and he was amazing. He explained everything clearly and honestly and I felt very comfortable with him being in charge of the surgery.
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Jan 30, 2020
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Reply Flag
My husband went to Dr Milanchi for a colostomy reversal. Dr. Milanchi was very attentive, explained everything to both of us clearly, and went above and beyond to make my husband as comfortable as possible during pre surgery procedures. His staff is just as attentive. They promptly followed up on phone calls, set appointments quickly and were very friendly. My husbands surgery was a success and we are both very happy with and grateful for, the care he received from both Dr. Milanchi and his staff.
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Erin – Jan 25, 2020
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Dr. Malanchi was patient, helpful, caring, and an all in all good doctor. I would recommend him as a colorectal surgeon
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Jan 24, 2020
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What a kind and gifted doctor! I was feeling very nervous about my colorectal surgery, but I didn't need to worry. Dr. Milanchi and his staff made me feel so comfortable that even a nervous lady like me felt at ease right away. Dr. Milanchi is very kind and patient. He is so professional that you almost forget you are discussing your private parts. He knows his area of expertise so well, and he explained everything so thoroughly, that I knew right away I had the right doctor. I'm two weeks post surgery, and I can't believe how much better I feel. No more pain. No more embarrassing accidents. I wish I had done this a long time ago. I am so grateful that I had Dr. Milanchi doing my surgery. I couldn't have asked for better care.
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Jan 18, 2020
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Dr. Milanchi is a good doctor. He is very nice and full of patience.
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Wenlu – Jan 16, 2020
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Would highly recommend him to family & friends. Very caring & listens to patients. So happy to have found him!
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Janet K in Foothill Ranch, CA – Jan 14, 2020
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Dr. Milanchi was a great colo/rectal surgeon for my mom. Her surgery went well plus the nurse and all the staff was great!!!! All in all he is the best!
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Stephanie – Dec 27, 2019
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Dr, Milanchi is very professional and explain very good and I understood about the problem I had. Thanks doctor.
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Sumedha – Sep 21, 2019
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Saved my butt... literally. Dr. Siamak was a professional and quick to the point. His service was excellent. Thanks Doc!
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Sep 19, 2019
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My primary care physician referred me to Dr. Milanchi. From day one, Dr. Milanchi and his staff were friendly, open, honest, and very knowledgeable. My surgery was a success and he and his staff were always there for me. Dr. Milanchi even returned my call immediately when I left a message on a Saturday night. I highly recommend Dr. Milanchi to anyone seeking the best colorectal surgeon in OC.
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Viet – Sep 12, 2019
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I had Surgery in June and just completed my last follow up in September. Surgery went well and I had a great experience with Dr. Milanchi, his nurses and the staff in his office. He is very knowledgeable, patient, and went through everything I needed to know in great detail, including risks and possible outcomes. I am grateful to have found Dr. Milanchi and I appreciate all the care that he and his staff provided to me. The office staff is top notch and everyone there is attentive and helpful.
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Edwin Y. – Sep 04, 2019
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Spot on with treatment
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Richard – Jul 31, 2019
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Very informative and professional. Very good results. Definitely recommend Dr. Milanchi.
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Jul 27, 2019
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Dr. Milanchi is an amazing doctor who knows exactly what he is doing and explains everything straightforward. Everything was done in a timely manner. I went in after 4 months of urgent care, ER and doctor visits that no one was able to pin pointed my problem. I asked my primary doctor, to refer me to a specialist and that’s how I ended up here with Dr. Milanchi. I was told I had a fistula and I was so scared of the pain that would come after getting the surgery. However, I would say I had a very pleasant experience with minimal pain. I was told I had a two tunnel fistula which made it more complicated. Happy to say my surgery was a success! His staff are also so amazing! Communication is top notch! Wait times low! You always feel welcomed! This is appreciated when you are in pain! Surgery itself was an outpatient procedure and hospital visit was fast, easy and comfortable!
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Erika N. – Jun 19, 2019
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Dr. Milanchi is awesome! He performed surgery on my mom and it was a total success, before the surgery she was in constant pain due to a rectal fisure, now she is so happy because thanks to Dr. Milanchi she doesn't have that pain anymore. We recommend him 100%
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Apr 17, 2019
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I met Dr Milanchi for second opinion , he immediately identified the issue and recommended surgery , while my current treatment doctor was still wondering on the issue for a months , so I had to switch my insurance to be under Dr Milanchi’s care. Dr Milanchi explained the surgery and the expectation . and the surgery was straight forward , The recovery from the surgery was reasonable and the issue has been gone .
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CA – Feb 18, 2019
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About Me

Biography

Dr. Siamak Milanchi, MD is a Colorectal Surgery Specialist in Irvine, CA and has over 24 years of experience in the medical field. He graduated from Tehran University Of Medical Sciences, Faculty Of Medicine medical school in 1996. He is affiliated...Read more

Specialties

  • Colorectal Surgery
  • General Surgery

Board Certifications

Education

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

Languages

  • Farsi
  • English

Awards

Common Questions and Answers

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Please call the office to learn more. (949) 429-0268

Frequently Asked Questions

Is Dr. Siamak Milanchi, MD accepting new patients?

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What are Dr. Siamak Milanchi, MD's top areas of care?

Locations

Irvine Colorectal Surgery

Irvine Eye Medical Group16300 Sand Canyon Ave Ste 604 Irvine, CA 92618
1

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Milanchi treats patients.

Learn more

Hoag Hospital Newport Beach

Newport Beach, CA

81% Patient experience rating, 12% higher than the national average

  • America's 250 Best Hospitals Award™ (2020, 2019, 2018)
  • America's 50 Best Hospitals Award™ (2020, 2019, 2018)
  • Gastrointestinal Care Excellence Award™ (2019, 2018)
  • General Surgery Excellence Award™ (2019, 2018)
  • Outstanding Patient Experience Award™ (2019, 2018)

Orange Coast Memorial Medical Center

Fountain Valley, CA

71% Patient experience rating, 2% higher than the national average