Specialty: vitiligo

Peter Hashim, MD, MHS
Book an Appointment
203-208-4082
6 Business Park Drive, Suite 204, Branford, CT 06405
Directions
PETER HASHIM'S BRANFORD OFFICE HOURS
Monday — 8:00 am to 4:00 pm
Friday — 8:00 am to 4:00 pm
203-288-1142
1952 Whitney Avenue, 2nd Floor, Hamden, CT 06517
Directions
PETER HASHIM'S HAMDEN OFFICE HOURS
Wednesday — 8:00 am to 4:00 pm
860-440-3744
6 Shaws Cove, Suite 204, New London, CT 06320
Directions
PETER HASHIM'S NEW LONDON OFFICE HOURS
Tuesday — 8:00 am to 4:00 pm
Thursday — 8:00 am to 4:00 pm

Peter Hashim, MD, MHS

Peter Hashim, MD, MHS, is a fellowship-trained Mohs surgeon and board-certified dermatologist.

Dr. Hashim earned his MD from Yale University and undergraduate degree from Cornell University. He additionally earned a Master of Health Science (MHS) at Yale, studying the clinical research outcomes of pediatric craniofacial anomalies. Dr. Hashim completed his internship in surgery at New York—Presbyterian Hospital and residency in dermatology at Mount Sinai Hospital, where he was selected as Chief Resident in his final year. He remained at Mount Sinai for fellowship training in Mohs micrographic surgery and dermatologic oncology.

Dr. Hashim is actively involved in research and has served as an investigator on over 30 clinical trials in the treatment of skin cancer, psoriasis, eczema, vitiligo, and alopecia. He is a member of the American Academy of Dermatology and the American College of Mohs Surgery. Dr. Hashim serves on the clinical faculty at the Icahn School of Medicine at Mount Sinai, where he helps to train dermatology residents.

Areas of Interest

Education

  • Yale University School of Medicine, New Haven, CT – Doctor of Medicine, Master of Health Sciences

  • Cornell University, Ithaca, NY – Bachelor of Arts in History

Board Certifications

  • Mohs Micrographic Surgery and Dermatologic Oncology

  • American Board of Dermatology

Brett King MD PHD
Book an Appointment
203-292-9490
425 Post Road, 2nd Floor, Fairfield, CT 06824
Directions
Dr. KING'S FAIRFIELD HOURS
Monday — 8:00 am to 12:00 pm
Tuesday — 8:00 am to 4:00 pm

Brett King, MD, PHD

Dr. King was the first dermatologist to show that a class of medicines called Janus kinase (JAK) inhibitors were effective for treatment of alopecia areata, vitiligo, atopic dermatitis (eczema), granuloma annulare, sarcoidosis, lichen planus, and other disorders. He has advanced the use of oral minoxidil for treatment of male and female pattern hair loss (also called androgenetic alopecia) and other forms of hair loss.

After completing his medical training, Dr. King spent 14 years on the full-time faculty at the Yale School of Medicine before recently transitioning to private practice in order to focus on patient care, clinical research and medical education. He has been an investigator in numerous clinical trials, including those leading to approval of Olumiant, Litfulo and Leqselvi for treatment of alopecia areata. He lectures nationally and internationally and publishes extensively.

Dr. King was named an American Academy of Dermatology (AAD) “Patient Care Hero” for his work treating patients with severe alopecia areata. He is married to Britt Craiglow, MD, an extraordinary pediatric dermatologist who specializes in the care of children and adolescents with severe skin diseases.

EDUCATION & TRAINING

  • BA, University of California, Santa Cruz
  • PhD, Stanford University
  • MD, Yale University School of Medicine
  • Medicine Internship, Massachusetts General Hospital
  • Dermatology Residency, Yale-New Haven Hospital
  • Dermatology Fellowship, Yale-New Haven Hospital

Click here to learn more about Dr. King and his work

 


 

Brett King’s Patient Reviews

Brenda C.
3 months ago
After reading of Dr. Brett’s knowledge in the treatment of hair loss, I knew I wanted to see him. I had my consultation with Dr. Brett in March of this year, 2026. He spent the needed time with me without the feeling of being rushed and explained everything about what was happening. My hair loss is hereditary and I know he could tell how I was feeling about that. (Truthfully , I wanted to cry). I was told I had lost a lot of hair density on the crown of my head and he showed on paper, drawing what that meant. He was very informative about what we could try . I was given my treatment plan and I left his office very optimistic as I know he was too. Next week will make 5 months. I am soooo happy!! I can’t wait to see Dr. Brett in September for my follow up. My hairdresser was so impressed and surprised to see the difference. Others have noticed too, and also have asked what doctor I see. I could go on and on but I’m just going to say, I’m so grateful and thankful to God who led me to Dr. Brett.
HPF
11 months ago
If you have alopecia, this is the man to see. Hands Down.
Maureen O.
2 years ago
Very serious and compassionate physician. Did a thorough exam and wrote down the plan for me to follow instead of just racing through a lot if instructions.
Eileen C.
3 years ago
Brilliant, kind with the best team - I met with them today after being in his clinical trial for a drug that is now FDA approved. Thank You Dr. King!!
Bru
5 years ago
I honestly think he saved my wife's life.
Alyssa A.
6 years ago
Compassionate, kind and hard working for you.

Book with Brett King