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Marc D. Nez, M.S., CCC-SLP

Clinical Director & Founder

Marc is the owner and primary speech-language pathologist of Laryngenesis Therapy, LLC. He earned his bachelors in communication sciences at the University of New Mexico. Marc received his Master of Sciences degree with the highest honors in Speech-Language Pathology from Eastern New Mexico University. Marc holds the Certificate of Clinical Competence (CCC) through the national American Speech and Language Hearing Association (ASHA) and is licensed to practice through New Mexico's Board of Registration for Speech-Language Pathology and Audiology.  


Marc has experience working in a variety of settings including the public school system, an outpatient adult and pediatric medical hospital, and an inpatient hospital setting. He has treated individuals with needs in receptive and expressive language, alternative communication (AAC), fluency, swallowing, feeding, social skills, pragmatic language, voice, and articulation. Marc has worked with children with a variety of developmental and medical diagnoses including Autism Spectrum Disorder, Childhood Apraxia of Speech, Down Syndrome, Cerebral Palsy, Hearing and Vision impairments, developmental delays in speech and language, stuttering, ADD/ADHD, dyslexia, Specific Language Impairment, as well as many others. ​

Marc is a feeding specialist, with training in the SOS approach (Sequential Oral Sensory), as well as extensive experience with swallow dysfunction and oromyofunctional disorders. 

Devin Chavez-Cowles
Office Manager/Scheduler

Devin graduated from UNM with his bachelor’s degree in business administration with a concentration in marketing in December of 2017. He has worked as an office manager for dental offices, bank institutions, and car dealerships. He have a strong passion for working with children and helping people. When he's not managing an office, he likes to travel, play tennis, bake, cook, and spend time with his family. 


Jennifer Garrison, M.A., CCC-SLP

Speech-Language Pathologist



Jennifer graduated from the University of Kansas with a Bachelor of Arts in Linguistics in 2008, followed by a research-intensive Masters of Arts in Speech-Language Pathology in 2013. She is currently licensed to practice through New Mexico's Board of Regulation and Licensing Dept for Speech-Language Pathology and Audiology.  Her previous life was as a Military Intelligence soldier for the US Army, where she met her now husband of 21 years, and as a cognitive trainer. Her fascination for language, culture, healing, and connection has driven her practice since the beginning of her journey. Jennifer has almost a decade of direct experience with autistic clients, nonspeaking communicators, and school-based, home-based, and clinical service models.


Jennifer’s “speechie” interests include trauma-informed approaches to therapy, family coaching, learning about and advocating for neurodivergent voices, and the latest brain science. In the “outside world,” she loves learning new things and continuing to challenge herself to grow as a human being (currently on the menu: meditation, genealogy, and martial arts). She currently moonlights as a mom of 4 and homeschool teacher, which has taught her everything about life, including neurodiversity, authenticity, and a presumption of competence.


Her promise to her clients and their families is to always see, honor, and hear them for who they are and to be their biggest fan in their respective therapy journeys.

Robyn Wellman, M.S., CCC-SLP

Speech-Language Pathologist 

Robyn S. Wellman, MS, CCC-SLP is a graduate of Eastern New Mexico University and has 25 years of experience in the field.  Ms. Robyn has extensive experience with all ages.  She has worked in a variety of settings and considers her specialties to be feeding and swallowing, augmentative and assistive communication, language delays, autism, articulation, and phonological speech disorders and is well versed in sign language.  She is excited to be working with Laryngenesis clients!


Hayley Smith, M.S., CCC-SLP

Speech-Language Pathologist 

Hayley joined the team at Laryngenesis in August 2023. Hayley has 11 years of experience as a pediatric speech/language pathologist, most recently including 7 years at an elementary school in Philadelphia. In her practice, Hayley makes family involvement a priority, and she is passionate about helping kids who struggle with expressive language skills, speech sounds, and speaking fluency. She is also proficient in Spanish, and happy to support Spanish-speaking children in bilingual language learning.

Gretel Machado, M.S., CCC-SLP

Speech-Language Pathologist




Gretel is a speech-language pathologist who received her Bachelor’s degree at the University of Arizona in Psychology, minoring in Child Education and Child Development. She then went on to pursue a Masters in Communication Sciences and Disorders from Baylor University. She holds the Certificate of Clinical Competence (CCC) through the national American Speech and Language Hearing Association (ASHA) and is licensed to practice through New Mexico's Board of Registration for Speech-Language Pathology and Audiology.  


While in graduate school, Ms. Gretel gained experience working with children in inclusive classrooms, some with ABA therapy, and did multiple rotations in schools and other private practices who worked with children birth to 18. Gretel’s approach to therapy is very child-center and play-based, being able to adapt and be flexible while also maintaining some form of structure.

Gretel loves spending time with her long-time boyfriend, son Mateo (7), and their two puppies, Nala and Lilo. During her free time, Gretel loves to go dancing, reading, and since she and her family are originally from Arizona, they love to go and explore everything Albuquerque.


Jazmin Rojo, M.S., CF-SLP

Speech-Language Clinical Fellow

Jazmin was born and raised in Albuquerque, NM.  She received her Bachelor’s degree in Speech and Hearing Sciences from the University of New Mexico. She recently graduated from Eastern New Mexico University with her Masters in Communicative Disorders. 

Jazmin has experience working in a variety of settings including private practice, public schools, and skilled nursing facilities. She is fluent in Spanish and has experience working with bilingual clients. 

She is excited to begin her clinical fellowship at Laryngenesis and grow as a clinician.

Courtney Krueger, SLPA

Speech-Language Pathologist Assistant

Courtney is a speech-language pathologist assistant who graduated in the spring of 2019 from the University of New Mexico with a bachelor’s in communication in Speech and Hearing Sciences. Courtney is a licensed and ASHA certified Speech Language Pathologist Assistant for the state of New Mexico. She is attending the University of New Mexico for her master’s in science in Speech-Language Pathology. Courtney is currently working on her Certified Autism Specialist (CAS) certification to specialize and with children with Autism and her certificate for LSVT LOUD and BIG specializing in treatments for Parkinson Disease and other neurological conditions. Courtney believes everyone deserves a voice and to be heard. She is passionate about and dedicated to serving those who struggle to communicate.


Ryan James, COTA

Certified Occupational Therapist Assistant

Ryan is licensed in the state of New Mexico and has been a COTA/L for six years practicing in various settings including schools, acute care and outpatient. He has experience working with clients that have various conditions including Autism, Cerebral Palsy, ADHD and post-CVA etc. He is from Atlanta, Georgia and moved to New Mexico in 2017. He enjoys playing with his dog Cole, hiking and playing recreational sports. 

Sarah Berry, OTR/L

Occupational Therapist

Sarah has been a pediatric occupational therapist for almost 30 years. In addition to her OT degree Sarah has a postgraduate certificate in Sensory Integration. Sarah originates from Wales in the UK and moved to the USA in 1996. She has enjoyed a wonderful career with children.  She loves to spend time with her husband, two sons, and many dogs. As a family they are fortunate to enjoy camping, travel and skiing. Sarah teaches Zumba in her spare time and is an avid martial artist.


2716 San Pedro Dr. NE, Suite D

Albuquerque, NM 87110

PHONE: 505-459-0888

FAX: 505-421-7709

Monday - Friday: 9:00am - 5:00pm

Saturday & Sunday: Closed

Additional evening/weekend hours available upon request

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