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Meet The Staff

MARISSA MARTÍNEZ-THIELE, founder of Advanced Skin Medspa

Marissa is a trusted, sought-after skin care expert and medical aesthetician of the Hudson Valley. She brings over 12 years of experience to the aesthetic industry, working in some of New York City’s best medical spas and cosmetic surgery centers. With a genuine and detailed approach to achieving ultimate results for her clients, her dedication to industry perfection continues to draw in clientele from the Hudson Valley to NYC and beyond. Marissa graduated from the Hudson Valley School of Advanced Aesthetic Skin Care in 2006 and immediately started her aesthetic career in midtown Manhattan at one of the best medical spas. She has since continued her education through quarterly training and certifications. Her constant evolving knowledge of the latest innovations in beauty -particularly laser- has made her the go-to clinician of her field. As a member of the American Society for Laser Medicine and Surgery (ASLMS) and the Association of Skin Care Professionals (ASCP), her specialty is anti-aging skin care as well as corrective skin care through multiple medical modalities: Chemical peels, Hydrafacials, Laser technology, energy-based devices including ultrasound and Radio Frequency, and Microneedling and L.E.D. Therapy (light emitting diodes). With this knowledge, she trains other clinicians and continues to share the best approaches to medical grade skin therapies. Marissa feels that no two people are the same and neither is their skin which allows her to customize specifically to each person’s needs. She also has developed a “multiple procedure approach” for her clients to achieve optimal, more dramatic and longer lasting results. She loves to educate her patients on “skin fitness” and that their commitment to skin care is long term, just like diet and exercise. She is also appreciated for her honesty and compassionate approach, respecting her clients’ needs, and never steering them wrong. She looks forward to continue servicing the Hudson Valley as the spa director of ASM for all your skin care needs. In her free time, you can catch her teaching group fitness classes as her second passion, and running after her two little ones Joshua and Genevieve with her husband Joshua.

Dr. Thakur

Dr. Mrudangi S. Thakur is a board-certified plastic surgeon, an active member of the American Society of Plastic Surgeons, and the sole practitioner at Mrudangi Thakur Plastic & Reconstructive Surgery PC in Jefferson Valley, New York. Mrudangi Thakur graduated from the University of Gujarat, India achieving the highest grades in the University. Mrudangi was given the President’s Medal, Pfizer Gold Medallion, and twelve other medals for the highest grades in final MBBS all over India. Dr. Thakur then went to The United Kingdom and studied Microsurgery Head and advanced Neck Course. She then came to the States and began her career at Montefiore Medical Center, NY, with a fellowship in the Burn Unit, followed by her General surgery residency at Montefiore. The doctor finished her Plastic Residency in June 2001. Dr. Thakur was an Assistant Professor in Surgery in Jamaica Hospital and an Assistant Professor in Surgery at Kings County Hospital, Brooklyn NY. She is Board Certified in Plastic Surgery since October 2003 and maintains her Certification. Dr. Thakur currently has her own private practice in Westchester, NY. Her office has AAAASF Certified Surgical Suite, since 2014. Our cosmetic patients enjoy complete privacy and one on one special attention. For your every need, Dr. Thakur has added on Spa Ruena. The upstairs in the building, named after the Doctor’s two beautiful daughter’s Ruchi and Reena. Dr. Mrudangi Thakur also has privileges at Putnam and Northern Westchester Hospital in New York and Stamford and Greenwich Hospitals in CT.

Dr. Thakur will now also see patients in her newest plastic surgery and body contouring center of Middletown for all surgical and minimally invasive patients. Middletown Aesthetic Plastic Surgery is located at 225 Dolson Ave Middletown, N.Y. 10940. This is the sister location to Advanced Skin Medspa of Newburgh

Lisa A. Thayer, NP-C

Lisa A. Thayer, NP-C brings more than 14 years experience as a nurse practitioner to the cosmetic medical industry. She offers clients Botox and dermal fillers, such as Juvederm Ultra and Ultra Plus, Vollure, Volbella, and Voluma. Lisa specializes in creating a natural, never over-done look, while providing clients with a comfortable experience. Her clients are most often pleased with her precise attention to detail and individuality and appreciate her gentle touch. Lisa received her Bachelor of Science Degree in Nursing and a Master of Science Degree in Nursing from Mount Saint Mary College, where she graduated Summa Cum Laude and was also inducted into the prestigious international Sigma Theta Tau Honor Society of Nursing.

Amrita Singh

Amrita Singh began her career as a makeup artist. After learning and mastering the art of makeup application, their ingredients and the effect on skin she decided to combine her passion for makeup artistry and skincare, becoming a licensed aesthetician in 2016. She also continued her education in Nursing to advance further in the esthetic world.

After graduating Capri in 2016 and earning her degree, Amrita Singh continued education and training to adavance in both makeup artistry and skincare. She has additional certification and education in Bridal Makeup, Lash Extensions, Cool Sculpting, Laser Hair Removal, Waxing, Dermaplaining, Microdermabrasion, Chemical Peels, Anti -Aging Treatments, Micro Needling, Reflexology, Oxygen Facials, and Body Treatments. She continues her education and training to learn the most advanced skin care systems on the market to share with her clients.

Her passion for knowledge in the actively changing beauty industry ensures she stays on top with the latest technologies, cutting edge ingredients, and trends to share with her clients. She listens to her clients needs and delivers what they are looking for. Amrita Singh is all about developing a trustful relationship with all her clients and listening to all their needs. Her over all goal is helping each client be confident in their own skin.


Layna joined us in 2019 as our office manager. She makes it her goal that each and every client is treated with excellent customer service from time of reservation to check out. Layna’s professional and organizational skills ensures our clients will have the best customer service experience. Layna has always had a passion for the beauty industry. She is a highly skilled Permanent Makeup Artist, she uses the latest techniques for Eyebrows, Eyeliner and Lips. Trained and certified by Transitions Permanent Makeup Center Softap ™ method, Florida College of Natural Health for Micropigmentation, The Beau Institute of Permanent Makeup & Corrective Cosmetics, Phi Brows Microblading, Will Anthony smoky eyeliner & Kristina Melnicenco advanced training. Layna continues to take the latest advance education courses to master her techniques.