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About Hair Doc

Hair Doc

Board Certified Dermatologists & Hair Transplant Specialists located in Cow Hollow, San Francisco, CA

Peter Panagotacos, MD

At Hair Doc, a hair restoration practice in Cow Hollow, San Francisco, California, double board-certified dermatologist and cosmetic surgeon Peter Panagotacos, MD, helps patients make major strides in hair growth after diseases and injuries or because of hereditary hair loss. Dr. Panagotacos has over 50 years of experience in surgical and medical treatments and is a highly respected specialist in his field. 

Dr. Panagotacos earned his medical degree from Georgetown University in Washington, DC, in 1968. He completed an internship at St. Mary’s Medical Center in San Francisco, California, before moving to New Orleans, Louisiana, for his dermatology residency training at Louisiana State University Charity Hospital. 

Before opening his private dermatology practice in 1974, Dr. Panagotacos served as a dermatologist in the United States Army with the distinction of being the final doctor drafted for the Vietnam War. Since then, he has treated countless patients and has taught as an assistant clinical professor of dermatology at the University of California in San Francisco (UCSF). 

Dr. Panagotacos is the head of dermatology at St. Mary’s Medical Center and lectures nationally and internationally on hair transplantation. He’s board-certified by the American Academy of Dermatology and the American Academy of Cosmetic Surgery.

At Hair Doc, Dr. Panagotacos offers a diverse range of treatments and services for hair loss. He assesses each patient before building an individualized treatment plan that may include follicular unit extraction (FUE) using the first ARTAS® iX robotic hair transplant system on the West Coast, follicular unit transplantation (FUT), platelet-rich plasma injections, laser caps, or prescriptions, such as for minoxidil and finasteride. 

While Dr. Panagotacos dedicates the majority of his time to his patients at Hair Doc, he also maintains a private estate in Greece where his family produces Lykovouno Olive Oil. 

Dr. Panagotacos welcomes new and returning patients at Hair Doc. To schedule an appointment, call the office or book online today. 

Aaron Chen, DO

Dr. Chen is a distinguished board-certified dermatologist with expertise in hair loss solutions, cosmetic dermatology, and medical dermatology. He received his medical education at the University of New England College of Osteopathic Medicine in Biddeford, Maine, and completed his residency in dermatology at Larkin Community Hospital in South Miami, Florida, where he served as chief resident, honing his skills under esteemed mentors. Prior to his specialization in dermatology, Dr. Chen received training in Family Medicine, further enriching his medical background. Now he is learning Dr. Panagotacos’ refined skills as a hair specialist to better serve his patients in San Francisco.

At HairDoc, he offers a diverse range of treatments and services for hair loss, employing innovative techniques to deliver optimal results. With meticulous attention to detail, Dr. Chen assesses each patient individually, devising personalized treatment plans tailored to their specific needs. His approach may encompass cutting-edge procedures such as follicular unit extraction (FUE) utilizing the groundbreaking ARTAS® iX robotic hair transplant system, follicular unit transplantation (FUT), platelet-rich plasma injections, laser caps, or prescribed medications like minoxidil and finasteride.

Beyond his specialization in hair restoration, Dr. Chen boasts extensive experience in cosmetic dermatology, where he continuously introduces advanced solutions to enhance skin health and appearance. His commitment to excellence and patient-centered care has earned him a reputation for delivering outstanding outcomes, with clients valuing his thorough approach and genuine attentiveness.

A diplomat of the American Board of Dermatology and a Fellow of both the American Academy of Dermatology and the American Society of Dermatologic Surgery, Dr. Chen is recognized for his commitment to upholding the highest standards of care in his field. Fluent in both English and Cantonese, he ensures effective communication with his diverse patient base.

Outside of his professional endeavors, Dr. Chen embraces an active lifestyle, enjoying hobbies such as hiking, immersing himself in nature, culinary pursuits, and engaging in water sports. Committed to ongoing learning and advancement, Dr. Chen remains dedicated to providing exceptional care and innovative solutions to his patients at HairDoc and his community.


Words from our patients

  • Google

    "I’m very happy with Hair Doc. They may not have the most modern office but they make up for it knowledge and experience."

    Mike F.
  • Google

    "I've been going to Dr. PANAGOTACOS for many years. Quite satisfied with the results. He is the most experienced doctor in the Bay Area."

    Bobbie S.
  • Yelp

    "Dr Panagotacos was very knowledgeable and straight to the point. I felt comfortable knowing that he was very experienced in this area."

    Alex H.
  • Yelp

    "Love this guy, been going on and off for over 15 years and he is always helpful. He will take care of you if being treated is your priority."

    Mike W.
  • Yelp

    "If you're looking for hair transplants in SF, this is your guy. He has more than 30 years of experience, and his work on me was spectacular."

    Soma L.
  • Yelp

    "I think they run a great friendly operation. He's not running a daycare people, he's a doctor and a dam good one."

    Oliver J.
  • Yelp

    "I have had two hair transplants by Dr. Panagotacos over the past 8 years. Both procedures were done with extreme skill and professionalism."

    Victor I.
  • Yelp

    "Having struggled with acne for 18 years, my first with Dr P changed all of that. I've had great skin now for 6 years and I actually get compliments now!"

    Critic A.


Hair Doc
2001 Union Street, Suite 520
Cow Hollow

San Francisco, CA 94123
Phone: 415-907-7354
Fax: 415-921-7759

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