Fort Collins Plastic Surgeon
1701 E. Prospect Rd.
Fort Collins, Colorado 80525 US
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Specials and Deals

$800 Off
$800 off Scarless Breast Lift Procedure
15% off Lumecca IPL Treatment
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31 years experience
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4.9 out of 5 stars 4.9 stars from 17 reviews See details Hide details
5.0 out of 5 stars Doctor's bedside manner
5.0 out of 5 stars Answered my questions
5.0 out of 5 stars After care follow-up
5.0 out of 5 stars Time spent with me
5.0 out of 5 stars Phone or email responsiveness
5.0 out of 5 stars Staff professionalism & courtesy
5.0 out of 5 stars Payment process
5.0 out of 5 stars Wait times
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Treatment results may vary

5 out of 5 stars Fractional Laser

Great experience--no complications

I went in to see Dr Duncan because I had a lot of sun damage and was developing my grandmothers wattle. Dr Duncan was able to zero in on my concerns and recommend procedures that would produce the results that I wanted. The surgery and followup care was professional yet friendly. My results are just what I wanted. I look fresher and younger but I am still me---not a mannequin. If having...

4 out of 5 stars Breast Implant Revision

Decent plastic surgeon

Dr. Duncan is a decent plastic surgeon. I have ad a few procedures with Dr. Duncan over the years. The office staff is friendly and helpful. Dr. Duncan explains the procedures well and she and the staff go over everything.

5 out of 5 stars Mommy Makeover

Amazing Experience!

After losing 150 pounds, my skin had a lot of sagging to it. I started researching plastic surgeons and felt a little overwhelmed after I realized just how many there were. How do you choose? For me, it was a big decision so I made a list of what was important to me: MD philosophy, his or her approach to the procedures (were we on the same page with what things should or should not look...

5 out of 5 stars Breast Augmentation

A smooth and wonderful experience

Duncan and her staff were wonderful. Duncan showed an extremely high level of professionalism and concern for the best results. She was strict in a way I appreciated and the staff made me comfortable

5 out of 5 stars Laser Resurfacing

I had a wonderful experience

I couldn't ask for more! Dr Duncan is amazing. I wasn't sure what I wanted, but she took the time to listen to my needs and come up with a suggestion for me. I am thrilled with the results and I'm only 2 weeks out!! It definitely took 10 years off of my face. I also need to mention the ladies who work with her. It was like being with a bunch of girlfriends whom I had known for a long...

5 out of 5 stars Mentor Breast Implants

Early 30's, 32A, I Finally Feel Like a Woman!

Dr. Diane Duncan is a perfectionist and her work is tasteful and natural looking. Her "style" is to make it look like she was never there. At each and every appointment, even the morning of my surgery, she asked me to state my goal (small, natural looking breasts) to ensure that we had the same end-product in mind. I found her straightforward approach to be helpful in understanding the likely results, recovery time and my true reasons for seeking out surgery. Dr. Duncan will tell you that surgery is only half of the effort for a beautiful outcome. The other half is what we, as patients, do (or don't do) for the months following. Due to her high expectations of her clients, the "rest" time was longer than I had expected, based on other women's experiences elsewhere. That being said, I did not have one single complication, I was off pain medication in 2 days, and 12 weeks after surgery my breasts look AMAZING. I am confident that my breasts will look just as beautiful in 20 years as they do today because of her perfectionism.

5 out of 5 stars Fractional Laser

Erbium Laser Resurfacing - Fort Collins, CO

Dr. Diane Duncan is an excellent plastic surgeon. She and her staff are true professionals who took so much time with me. They make sure you feel comfortable and gave me so much comfort before and after my procedure.

5 out of 5 stars Mentor Breast Implants

30 Year Old (5'8'' 140 Lbs), No Kids, Got Fit and Lost Boobs ;( - Fort Collins, CO

Dr. Duncan was very professional and confident. I could tell she wanted me to have a beautiful and classy result. Her staff was all very nice and courteous and made me feel very comfortable while in the office. Small mishaps with their scheduling texting system, but not a big deal. I would definitely recommend them.

5 out of 5 stars Breast Augmentation

30 Yrs. Old, Mommy of Two, Ready to Get Myself Back! - Fort Collins, CO

Dr. Duncan is a wonderful plastic surgeon. I was a bit hesitant on the procedure itself until I met her. She's very confident in what she does and made me feel like she could make my breasts look youthful again. I was so happy to have a Dr. that strives to go with the natural look. I in no way wanted anyone to know I had fake boobs. She made me feel beautiful again and I feel like I look completely natural. She's very direct which I appreciated. She's one of the only surgeons that performs the rf lift. It left me with no scars and a great result. I can't thank her and her staff enough for everything they've done for me!

5 out of 5 stars Breast Augmentation

48 Yr Old Woman with Amazing Breast Augmentation..and Extremely Happy! - Fort Collins, CO

Dr. Duncan is a wonderful artist! I wanted to have full, perky yet a classy appearance..she did a wonderful job! She is a perfectionist and an artist who is caring, attentive, professional..she is an absolute angel in my eyes! I feel completely beautiful and more confident! I have already referred her to several people including my family physician! I would highly recommend her and her...

*Your results may vary. Any specific claims or permanence length of results vary for each patient and are not guaranteed.

Personal Statement

As a clinical research and product development specialist, Dr. Duncan frequently has new options for treatment available first. Dr. Duncan is board certified in Plastic & Reconstructive Surgery and has been practicing in Fort Collins for over 28 years.

Board Certifications

Board-certified by the American Board of Plastic Surgery


American Society for Aesthetic Plastic Surgery (ASAPS)
American Society of Plastic Surgeons (ASPS)
Fellow, American College of Surgeons (FACS)

Consultation Fee

$75. Consultation fee applies towards surgical procedure.

Awards & Recognition

Professional Recognition:
Editorial Board, Aesthetic Surgery Journal, March 2015
Who's Who, 2013
Castle Connolly: America's Top Plastic Surgeons, 2012-2014
America's Top Surgeons, 2010-2014
Talk of the Town****, Patient Satisfaction Award, 2013-2014
IMCAS Speaker Award Singapore, July 2013
International Plastic Surgery Soc. Leading Physician, 2011
IMCAS Speaker Award, Asia, 2011-2012
America's Top Plastic Surgeons, 2011
Best Speaker: MIPS Conference, Seoul, Korea, Sept 2010

Hospital Privileges

Dr. Duncan has hospital affiliations at University Heath PVH Fort Collins .


  • Undergraduate & Medical School

    Medical: MD, Tulane University School of Medicine, New Orleans, Louisiana, 1979
  • Post-Medical School Training

    Internship: General Surgery, Tulane Division, New Orleans, Louisiana, 1980
    Residency: Plastic Surgery, University of Utah Medical Center, Salt Lake City, Utah, 1986

Treatments offered at Plastic Surgical Associates of Fort Collins, P.C.

Blog Posts and Articles

Autologous Suspension Threads

The concept of suspending and lifting tissue using suspension threads originated in ancient Egypt, where golden threads were used under the skin to obtain a bit of inflammatory tightening. It is rumored that these gold threads may have been the source of Cleopatra’s beauty. Late in the 20th century, the use of gold threads resurfaced in Russia, Asia, and Europe. A Russian, Dr. Adamyan, obtained a US patent for a combination gold/polygycol thread combination in 2000, but these were n...

Most popular answers from Diane I. Duncan, MD, FACS

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I'm getting a breast implant revision due to being unhappy with size and shape. Will I have problems with sagging? (Photos)

It's a bit hard to understand what you are trying to achieve. You have a lovely result now. Changing from moderate profile to high profile is a... READ MORE

Thermi Smooth or Forma for the Face?

I have both devices, and there are different indications for each. I find Forma to be very effective for collagen rebuilding, especially when soft... READ MORE

Fractora side effects?

There is no similarity of Fractora to a microwave at all. Fractora (I just had it done yesterday) is a needling device whose energy is limited to the... READ MORE

Laser Resurfacing for Dark Circles Under Eyes?

Dark circles under eyes are frequently caused by a tight insertion of the orbicularis oculi muscle at the lower orbital rim. It's an attachment to... READ MORE

Difference between RF Microneedling and RF Sublative Rejuvenation: which is more beneficial for acne scarring?

I agree with my friend and colleague, Dr. Gold, that RF needling does seem to be a bit better for acne scars. The needles go into the dermis and the... READ MORE

How can I best tighten the saggy skin on my face and neck without having surgery? (photo)

Your face is thin, but you really do not appear to have a lot of true skin laxity. As we age, we lose facial volume: bone, muscle, and facial fat.... READ MORE

I am almost 37 years old. It is possible to get all the fat of my cheeks out?

Many 37 year olds would love to have your full face as it is lovely and appears youthful. Many women with square faces who would like to have more of... READ MORE

How often can you have radio frequency skin tightening on a specific area. Can I treat 2-3 areas at once?

It depends on whether you're considering a minimally invasive or non-invasive procedure; either way, the body can influence collagen production and... READ MORE

I've had two kids by c section and have lost lot of my pregnancy weight. Still 5 lbs to go. I'm 5'5 and weigh 115 lbs. (photo)

Exercise will not help further weight loss will only worsen the appearance of skin laxity. My best recommendation would be bipolar radiofrequency... READ MORE

Do some people stay very red for several days? 1.0 needles.

A 1.0 needle is a very aggressive needle, I would tend to use a 0.5 as it is the recommended treatment needle depth. I would recommend the use of... READ MORE

Before and After Photos by Dr. Duncan

Diane I. Duncan, MD, FACS has shared 32 before and after pictures with 48 helpful votes from the RealSelf community.

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Videos by Diane I. Duncan, MD, FACS

Diane I. Duncan, MD, FACS has shared 2 videos.

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Lumecca: IPL Treatment for Sun Spots

Dr. Diane Duncan shares this demonstration of a Lumecca treatment, a form of intense pulsed light (IPL) to treat a variety of skin issues. By using the most intense IPL, this device is able to selectively target and treat various skin conditions. WATCH VIDEO

diVa: Feminine Rejuvenation in Less than 10 Minutes

Dr. Diane I. Duncan explains diVa for vaginal rejuvenation and what to expect, live from Vegas at VCS 2016. WATCH VIDEO

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*Your results may vary. Any specific claims or permanence length of results vary for each patient and are not guaranteed.