Long Island Plastic Surgeon
1500 Route 112, Building 10
Port Jefferson Station, New York 11776 US
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Patient Reviews


5.0 out of 5 stars 5.0 stars from 14 reviews See details Hide details
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5 out of 5 stars Rhinoplasty

Broken Nose Closed Reduction - Long Island, NY

After a terrible fall and nasal fractures, I came to Dr. Diehl to see if my nose could be repaired. I am so happy and thrilled how it came out. I can' t thank him enough for helping me. I will let my photos speak for themselves. A before, during, and 36 hours post op photos below. This is my 3rd time using Dr. DIEHL for plastic surgery. A few years back after 3 kids and losing 100 pounds he...

5 out of 5 stars Tummy Tuck

43 Year Old After Giving Birth and Loosing 30b... Needed a Tummy Tuck - Port Jefferson, NY

I am a very proud patient of Dr. Gregory Diehl ! I have 100% trusted in him, his opinion and his work! I couldn't have been happier with the result! From my first consultation and beyond, Dr. Diehl was thorough in his explanations of the procedure and in answering all my questions. He is straightforward, kind, and has a sense of humor that I appreciated as I was nervous about the procedure....

5 out of 5 stars Breast Augmentation

37 Years Old, Mother of 2, Who Finally Got Her Breasts Back! - Suffolk County, NY

I used to have ample breasts when I was younger. After two pregnancies and nursing my children, I had lost volume in my breasts. I no longer felt confident in a bikini and there wasn't much to 'push up' in a bra anymore. Four months after finishing nursing my 2nd child, I decided I would make an appointment for a consultation. I chose my surgeon, Dr. Diehl, because I knew one of his...

5 out of 5 stars Scars Treatment

59 Yr Old. Need Scar Revision Plus Lipo on Abs, Flanks & Inner Thighs. Long Island, NY

It's a little too soon tell, but my TT scar looks so much better. Still have swelling in all areas. Have to wait and see.... I highly recommend Dr. Diehl as a Plastic Surgeon. I thought I was never going to find right Surgeon to help me. He is caring and so easy to talk to. I searched high and low and he is the man to make dreams come true. His staff makes you feel you are at home...

5 out of 5 stars Breast Implant Removal

40 Years Old, Explanted 17 year old saline unders Yesterday and Thrilled! - Port Jefferson, NY

I am writing this review to pay it forward. This site was an invaluable tool in helping me make this decision more comfortably. Being able to see real before and after pics helped give me a realistic idea of what my outcome could be. Overall, I had no real problems with my implants. They just never felt right. The plastic surgeon went larger than ee had discussed and i always felt they...

Breast Explantation. - Port Jefferson Station, NY

I came across this web site a year ago looking for support, reading story after story, Now that my date is near for explant I feel it important for me to share my story to add support for others. I am 45 and have had my 350CC silicone under the muscle implants for 6 years. I am scheduled for Nov. 12, 2014 for explantion, taking a risk with no lift. Dr. says I have youthful skin and I am...

5 out of 5 stars Male Breast Reduction

48 Year Old Man Just Finally Tired of the Man Boobs I Could Not Lose. Port Jefferson, NY

I decided to have it done with Dr. Gregory Diehl of Diehl Plastic Surgery Center 11 Medical Dr., Suite B Port Jefferson Station, New York 11776 631-476-7300 He was the second Doctor I had a consultation with, the first Doc was great but the procedure he described would have left me with some scars I was not ready to deal with. Doctor Diehl was different, Instead of telling me what I needed...

5 out of 5 stars Breast Augmentation

35 Years Old and Had Two Children - Port Jefferson, NY

Having my breasts done was something I thought about since my 20's. I chose to wait until after having my children. I booked several consultations but the first dr I met was Dr. Diehl. On my way home I called and booked the surgery. Him and his staff are remarkable. Reviewing the before and after of his other patients was amazing. If you are seriously considering taking this step Dr....

5 out of 5 stars Breast Augmentation

Scarless! Breast Augmentation - Port Jefferson, NY

If you are planning on getting a breast augmentation Dr. Diehl is the way to go! He is a fantastic surgeon and truly cares about his patients. His staff and nurses are excellent. I was very impressed with how pleasant, courteous, and respectful everyone in his office was. Dr. Diehl and his staff was very informative and kind from the consultation to the recovery process. My procedure went...

5 out of 5 stars Eye Bags Treatment

Bet You Couldn't Guess my Age!! :) - Port Jefferson, NY Eye Bag Surgery

My motivation was base on how I do value my physical appearance and work hard to maintain my self mentally, physically and spiritually. Also, my condition was genetic for fatty deposits under the eyes come from my fathers side of the family. No matter how good the rest of my skin looked and how much sleep I had, nothing would of fixed this problem. Not an eye cream on the market or and...

Board Certifications

Board-certified by the American Board of Plastic Surgery


American Society of Plastic Surgeons (ASPS)
Fellow, American College of Surgeons (FACS)

Hospital Privileges

Dr. Diehl has hospital affiliations at John T. Mather Memorial Hospital and St. Charles Hospital.


  • Undergraduate & Medical School

    Undergraduate: BA, Washington University, St. Louis, MO
    Medical: MD, Washington University School of Medicine, St. Louis, MO, 1986
  • Post-Medical School Training

    General Surgery, Washington University Barnes - Jewish Hospital, St. Louis
    Plastic Surgery, Washington University Barnes - Jewish Hospital, St. Louis
    Plastic Surgery, Washington University Barnes-Jewish Hospital
    Reconstructive Surgery, Washington University Barnes-Jewish Hospital

Treatments offered at Gregory Diehl, MD

Blog Posts and Articles

Male Breast Reduction Surgery

Male Breast Reduction/Gynecomastia Surgery is to make normal of enlarged male breasts. It’s quite natural and rather common for male adolescents to temporarily develop enlarged breasts, also known as Gynecomastia. It is a problem for many young men as they have to get through gym class somehow, and enjoy their summers like everybody else. It can be a big emotional burden. But then what happens if it doesn’t go away? What if it gets worse instead of...

Most popular answers from Gregory Diehl, MD, FACS

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How Long Do I Have to Sleep on my Back After Breast Augmentation?

Don't worry too much about it. You are not going to move the implants by lying on them, especially after 3-4 weeks when the capsule is well developed. READ MORE

Should I Wear Surgical Bra After Breast Augmentation?

It is best to wear a light compression garment for the first 2-3 days. It helps with swelling to a degree, but it is really for comfort. There is... READ MORE

Breast Augmentation Recovery: What Can I Expect?

Plan to take 2-3 days off to rest. Recovery really depends on what type of work and activities you do. Lifting and carrying light items can be done at... READ MORE

I Am Only 22, Why Does My Face Look Tired and Old? What Can I Do? (photo)

Could it be that you have allergies or just simply sleep deprived? Many people are sleep deprived and this takes its toll on your skin as well as... READ MORE

What is going in with my right breast? (photo)

It is early in the process, just over 2 weeks. There is much more swelling on the right, and it pushes the pocket outward in all directions. The... READ MORE

Should I be happy with my results? (photo)

Liposuction of your flanks is needed to give a more "hourglass" shape. It is an excellent place to remove fat, because the skin there is more elastic... READ MORE

Will I Get Any Upper Pole Volume? (photo)

Your breast augmentation looks great. Congratulations! The bottom will fill out and the upper tightness will improve over time. You will want to... READ MORE

I Did Breast Augmentation Five Weeks Ago And I Feel Like One Implant is Bigger Than the Other? (photo)

Your right breast implant looks like it is placed higher than the left (your right nipple position is low on the implant, and the top of the implant... READ MORE

Should I Use Saline or Silicone, I Want to Have Victoria Secret Model Boobs, How Much is Too Much Without Sagging? (photo)

Silicone breast implants are much better for thin skin, because there is less breast tissue and subcutaneous fat to cover the implant. The silicone... READ MORE

To Massage or Not to Massage?

Breast "massage" is designed to keep the breast soft by stretching the pocket, or capsule, that it is in. As you push the implant right, left, up and... READ MORE

Before and After Photos by Dr. Diehl

Gregory Diehl, MD, FACS has shared 81 before and after pictures with 69 helpful votes from the RealSelf community.

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Videos by Gregory Diehl, MD, FACS

Gregory Diehl, MD, FACS has shared 6 videos.

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Check Out This Woman's Invisible Scars After Her Scarless Breast Augmentation

A patient of Dr. Gergory Diehl shows off her new breasts and the incision points they used during her surgery. There are no scars on her breasts at all, as Dr. Diehl performed this augmentation with an underarm incision. WATCH VIDEO

See a Face and Neck Lift in Action With This Photo Morph

Dr. Gregory Diehl provides a unique photo morph of a patient for the purpose of visualizing the results from a face and neck lift. WATCH VIDEO

Watch the Bump on This Patient's Nose Completely Disappear

Dr. Gregory Diehl addresses a patient's dorsal hump... and the results are amazing! WATCH VIDEO

Male Breast Reduction: See the Incredible Before and After

Dr. Gregory Diehl shows a male patient who opted to undergo male breast reduction for gynecomastia. Check out this photo morph to see what he looks like now! WATCH VIDEO

Scarless Breast Augmentation Before and After

Dr. Gregory Diehl reveals the before and after photos of a patient who underwent breast augmentation with no scar on or around the breasts. WATCH VIDEO

Tummy Tuck Before and After: Flat Belly With Minimal Scarring

Dr. Gregory Diehl shows the incredible results of a tummy tuck. WATCH VIDEO

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