Meet Our Board of Directors

Our Board of Directors has diverse experience in biotechnology, diagnostics, therapeutics, medical and other industries, bringing decades of experience to the team.

Matt Posard


Mr. Posard brings over 30 years experience of general management and commercialization experience in the biotechnology and diagnostics industry. His expertise is introducing novel and transformational products to medical and research markets while scaling organizations efficiently. Mr. Posard has held executive title responsibilities with several highly successful growth companies including Illumina, Biosite and Gen-Probe. From 2006 to 2015, he held executive positions at Illumina as its VP of Marketing, VP Global Sales and then as Senior VP, General Manager of its Translational and Consumer Genomics and New and Emerging Markets business units. Mr. Posard currently serves on multiple boards including Halozyme Therapeutics (NASDAQ: HALO), Talis Biomedical (NASDAQ: TLIS), and Stemson Therapeutic and as Chairman of the Board of Nautilus Biotechnology (NASDAQ: NAUT). He holds a bachelor’s degree in management science from UC San Diego.

Cynthia Collins

Cynthia Collins has served on our board of directors since the completion of the Business Combination in August 2019 and on DermTech Operations’ board of directors between July 2018 and August 2019. Ms. Collins served as Chief Executive Officer of Editas Medicine, Inc. (Nasdaq:EDIT) from March 2019 to February 2021 and served as a member of the board of directors of Editas Medicine from December 2018 to February 2021. Ms. Collins served as Chief Executive Officer of Human Longevity Inc. from January 2017 to December 2017. From October 2013 to December 2016, Ms. Collins served as the Chief Executive Officer/General Manager of General Electric’s Healthcare Cell Therapy and Lab Businesses and GE’s Clarient Diagnostics. Prior to GE, Ms. Collins served as CEO of GenVec (NASDAQ:GNVC), a vaccine and gene therapy company and before that, she served as Group Vice President, Cellular Analysis Business of Beckman Coulter with responsibility for its Hematology, Flow Cytometry, and Hemostasis businesses. Prior to Beckman Coulter, she served as CEO of Sequoia Pharmaceuticals, Inc., a company developing HIV and HCV therapeutics. Ms. Collins received her BS degree in Microbiology from the University of Illinois, Urbana and her MBA from The University of Chicago Booth School of Business. Ms. Collins is a member of the board of directors of ARM Foundation for Cell and Gene Medicine, Triumvira Immunologics, and Biocare Medical. Ms. Collins is qualified to serve on our board of directors because of her broad experience serving as the chief executive officer for a variety of companies in the life sciences industry and her experience serving on numerous boards of directors.

John Dobak, M.D.

President and CEO

John Dobak, M.D., has served as Founder and CEO of several venture-backed life science companies in San Diego. Dr. Dobak is the President of the JAKK Group, a life sciences technology accelerator, which has created several companies, including Lithera, INNERCOOL Therapies, and CryoGen/CryoCor. These companies have developed and marketed therapeutics, ranging from endovascular hypothermia to treat cardiac arrest to catheter-based treatments for cardiac arrhythmias. They have been financed by top tier investment firms and have achieved exits through acquisition and an IPO. Dr. Dobak and these companies are the recipients of several awards for entrepreneurship and innovation, including UCSD Connect’s Most Innovative New Product and MIT’s TR 100. Dr. Dobak received a bachelor’s degree from UCLA and a medical doctorate from UCSD. 

Nathalie Gerschtein

Nathalie Gerschtein brings over 20 years’ experience in international marketing, brand development, business strategy and general management at L’Oréal, the world’s leading beauty company. Nathalie has led a variety of businesses within the L’Oréal Group across Europe, Asia and the United States and played a pivotal role in transforming the beauty industry.

Since March 2019, Ms. Gerschtein has held the role of President of the Consumer Products Division in the United States, the largest division in L’Oréal Group’s #1 subsidiary. Ms. Gerschtein is responsible for accelerating growth, innovation, and sustainable practices across its mass market portfolio of brands and product categories from skin care and makeup to hair care and color. This extensive portfolio includes some of the most trusted and iconic brands such as L’Oréal Paris, Maybelline New York, Garnier, and NYX Professional Makeup, in addition to Essie, Thayer’s Natural Remedies, Carol’s Daughter, and Softsheen-Carson. In her current role, Ms. Gerschtein leads thousands of diverse and talented L’Oréal employees who are passionate about embodying L’Oréal’s global purpose: to create the beauty that moves the world. She is the first woman to lead L’Oréal USA’s Consumer Products Division.

Through an appointment by the French Prime Minister, Ms. Gerschtein serves on the board of the French Foreign Trade Advisors. She is a graduate of HEC School of Management in Paris, the London Business School, and INSEAD’s senior executive leadership program.

Enrico Picozza

Enrico Picozza is a partner of HLM Venture Partners, a venture firm that invests in tech-enabled healthcare services, healthcare information technology, and medical device and diagnostics companies. He is also currently a director of AbleTo, mPulseMobile, RubiconMD and a board observer to OnShift. His previous board appointments included Vericare (sold to MedOptions), Spinal Kenetics (sold to Orthofix), Transend Medical (sold to Alcon), Medicalis (sold to Siemens), Aventura (sold to Philips), SensAble Technologies (sold to 3D Systems) and was a board observer and special advisor to Interlace Medical (sold to Hologic), and Tandem Diabetes (NASDAQ). Prior to joining HLM as a Venture Partner, Enrico co-founded HTS Biosystems, Inc., an early developer of platforms for drug discovery and point of care diagnostics, where he served as Chief Operating Officer and Chief Technology Officer. Prior to HTS, Enrico held leadership positions with PerkinElmer, Inc. and Applied Biosystems, Inc. Enrico was part of the startup team within Perkin Elmer involved in the development and commercialization of PCR, the revolutionary DNA-replicating technology that enabled the development of some of the most significant advancements in molecular biology. Enrico is the holder of nine patents and has been recognized by the Smithsonian Institute for his achievements in PCR. He is the author of numerous scientific papers and has been a frequent international speaker. Enrico attended the University of Connecticut for undergraduate and postgraduate studies in the major Molecular and Cell Biology.

Herm Rosenman

Herm Rosenman brings more than 30 years of public company operating and financial experience. Mr. Rosenman has served as a member of the board of directors of Natera, Inc. since 2017, and as its CFO from 2014 to 2017. Prior to that, he was the SVP of finance and CFO of Gen-Probe Inc., where he was instrumental in its 2002 IPO and its 2012 sale to Hologic Inc. Prior to joining Gen-Probe, Mr. Rosenman was president and CEO of Ultra Acquisition Corp., a retail chain and consumer products manufacturer, and president and CEO of RadNet Management Inc., a large healthcare provider. From 2012 to 2014, Mr. Rosenman focused on his board memberships. He has served on the board of directors of Oxford Immunotec Global PLC, a commercial-stage diagnostics company, since 2013, and of Vivus, Inc., a biopharmaceutical company, also since 2013. Mr. Rosenman also previously served on the board of directors of BioFire Diagnostics, Medistem, Inc., a stem cell therapy company, ARYx Therapeutics Inc., a private drug discovery and development company, Infinity Pharmaceuticals, Inc., a drug discovery and development company, and several privately held companies. Mr. Rosenman holds a BBA in accounting and finance from Pace University and an MBA in finance from the Wharton School of the University of Pennsylvania.

Monica Tellado

Monica Tellado brings extensive commercialization and finance experience in the biopharmaceutical industry to DermTech’s Board of Directors. Monica serves as Senior Vice President of Finance at Gilead where she oversees the global finance teams as well as investor relations. Over the past 18 years, Monica has held roles of progressive responsibility in the finance and commercial organizations at Gilead. She’s been responsible for the U.S. and Latin American commercial markets, led preparations to enter new markets and launch new products within Gilead’s HIV, Liver, Cardiopulmonary, and Oncology business units and was responsible for the U.S. Liver Disease business unit including a P&L of nearly $2 billion.

Prior to joining Gilead, she held numerous Finance positions at Intel Corporation and Ford Motor Company. Ms. Tellado earned a Bachelor of Arts degree in Business Administration from Universidad Pontificia Comillas in Madrid, Spain and London, England. She received her Master of Business Administration from Carnegie Mellon University in Pittsburgh, PA.