Meet Our Team

At Regeneris Medspa in Boston, we bring together leading minds in cosmetic, dermatological, and regenerative medicine. Get to know our dedicated team of self-care and wellness professionals who are committed to delivering exceptional patient experiences.
Dr. Rayan in white coat with Generis logo in medical office

Dr. Ryan Welter

Founder & CEO

Dr. Ryan Welter is the visionary founder of Regeneris Medspa & Cosmetic Surgery and the New England Center for Hair Restoration. With a background in biochemistry and an M.D. from the University of Oklahoma, Dr. Welter has pioneered advancements in regenerative medicine, including the first-ever adipose-derived stem cell therapy for hair loss. His commitment to innovation and patient-centered care has set Regeneris apart as a leader in the field.
Kristen Houlker, RN Banner

Kristen Houlker, RN

Master Nurse Injector

With over 15 years of experience, Kristen specializes in injectables, PRP, chemical peels, and tailored treatment plans to achieve natural, rejuvenated results.

The Regeneris Team

Smiling woman with long brown hair pulled back against blurred green background

Skye

MedSpa Manager

Woman with shoulder-length brown hair and burgundy lipstick wearing lace collar top

Sofia

Medical Aesthetician

Smiling woman with long black hair and gold hoop earrings wearing green top

Elizabeth

Marketing Director

Professional headshot of woman with black hair and white coat against blurred green background

Cassandra

Physician Assistant

Dedicated to Your Wellness Journey Banner

Dedicated to Your Wellness Journey

At Regeneris Medspa, every team member shares a commitment to creating an exceptional patient experience. From your first consultation through your tailored treatments, our goal is to support and guide you on a journey to renewed confidence and well-being.

International Teaching & Conference Presence

Dr. Welter has taught and presented in over 30 cities worldwide, sharing advanced techniques in hair restoration,
cosmetic surgery, and regenerative therapies.

World map with blue location markers indicating global treatment centers

Affiliations & Global Conferences

  • American Academy of Cosmetic surgery IMCAS World Congress
  • Regenerative Plastic Surgery International
  • International Plastic Surgery for Hair Restoration
  • Regenerative Excellence in Aesthetics and Cell Based Hair REstoration
  • FUE Europe & FUE Asia
  • LA Hair Restoration Courses
  • SDARTS
  • International Cell Surgical Society
  • African Society of Hair Restoration Surgery & Arab Association of Hair Transplant
  • Hair Science Brazil
  • Asian Association of Hair Restoration Surgeons
  • ISHRS
  • World FUE Institute
  • Global Hair Loss Summit
  • World Congress on Liposuction
  • DHI Academy Masters Meeting & more

Global Presence of Dr. Ryan Welter

Each year, he is invited to speak and teach at leading conferences around the globe, where he shares advanced techniques and helps shape the future of hair restoration, cosmetic surgery, and anti-aging therapies.

Experience the Regeneris Difference

Take the first step toward a transformative experience with our compassionate, expert team. Schedule your consultation today