Our Team

Kevin NiemanKevin Nieman, Ph.D., LMFT, Director

Dr. Kevin Nieman, LMFT, is the founder and director of Cornerstone Christian Counseling Services (CCCS). Dr. Nieman earned his doctorate in Marriage and Family Therapy from the University of Louisiana at Monroe (ULM), a master’s degree in Marriage and Family Therapy from Harding University, and an undergraduate degree in Business Management from Harding University. Dr. Nieman is a Clinical Member of the American Association for Marriage and Family Therapy (AAMFT), the Oklahoma Association for Marriage and Family Therapy (OKMFT). He is also a member of the American Association of Christian Counselors (AACC). He is an AAMFT Approved Supervisor in Marriage and Family Therapy. Dr. Nieman is also certified to provide Mediation services. He also serves as Adjunct Professor at Southern Nazarene University in their graduate program.

Dr. Nieman has a passion for helping hurting people find hope and healing. Areas of specialty and interest include marriages in crisis, differentiation and self-worth development, and working with CEOs and professional athletes.

Dr. Nieman is married to Lindsey Nieman, M.A. who also provides Marriage and Family Therapy at CCCS. Together they have two beautiful boys. Dr. Nieman is an avid Green Bay Packers Fan.

Lindsey Nieman, M.A., RDN, LD LMFT

Lindsey Nieman, M.A. RDN LD LMFT is a staff therapist and dietitian at Cornerstone Christian Counseling Services (CCCS). She earned her Master of Arts in Marriage and Family Therapy and an undergraduate degree in Business Management from the University of Louisiana at Monroe (ULM). She also has an undergraduate degree is Nutrition and Dietetics from Louisiana Tech University. Lindsey finished her dietetic internship through the University of Oklahoma Health Science Center. She is a registered dietitian as well as a Licensed Marriage and Family Therapist and a Neurofeedback practitioner working toward certification with BCIA. Lindsey is a member of the Academy of Nutrition and Dietetics and the American Association of Christian Counselors. 

Lindsey is passionate about helping individuals achieve a healthy lifestyle both physically and emotionally/mentally. She combines her knowledge from the nutrition perspective with her Marriage and Family Therapy training to provide her clients with a more complete approach to health. Lindsey directs the BrainHealth program and integrates nutrition and brain health principles in her client care.

Lindsey is married to Dr. Kevin Nieman, founder and director of CCCS. Together they have two beautiful boys. Lindsey enjoys and is passionate about exercise, gardening, and cooking.

Paige Tallent, LPC

Paige Tallent, MHR, LPC earned a Bachelor of Science in Psychology from Northeastern State University and a Master of Human Relations from the University of Oklahoma. Paige has worked in the counseling field since 1999 serving youth, adults and seniors. Paige is a Nationally Certified Counselor; a Licensed Professional Counselor in Oklahoma and an Approved Supervisor for candidates seeking counseling licensure.

Paige is committed to helping individuals, couples and families, find their identity in Christ and their calling as healthy children of God. Paige specializes in trauma recovery; improving relational dynamics within couples and families; encouraging single parent families to heal and excel. Paige is dedicated to suicide prevention and implemented a free suicide prevention service program, Because of Hanah, in Washington County.

Paige is passionate about her family, travel, nature, antique collection and restoration and the art of friendship.

Sonia Marshall CYT, Relax & Renew® Trainer

Sonia is a Yoga Instructor and Graphic Artist. She earned her 200 hr. YTC in Hatha Yoga from Yoga Spirit Academy in Tulsa, earned a Bachelors Degree in Commercial Art from Oral Roberts University, and in 2015 she was certified as a Relax & Renew@ Trainer in Dallas TX, with Judith Lasater.

She began practicing yoga to manage chronic back pain, stress and anxiety, and through regular practice she discovered how yoga can help to heal the body and mind. From her personal experience, she is inspired and passionate about sharing the practice of yoga with others.

Sonia teaches with a gentle approach, with a focus on body awareness.

Sonia and her husband have been married for 18 years. She has lived in Tulsa for 26 years and enjoys camping with her husband and their two dogs, Stella and Hadi. She loves experimenting with new recipes, traveling, and music.

Becky Weathers, Office Manager

Becky Weathers is our office Manager. Before coming to Cornerstone, she worked in the health insurance industry for nearly 27 years and then in the medical industry for a little over 3 years. Becky loves working with people and hopes to make a positive difference each day. Becky and her husband Clyde have been married for 25 years and have 3 beautiful daughters. In her spare time, Becky enjoys traveling and spending time with her family.

Deidra Nickel, LPC

Deidra Nickel earned her M.A. in Marriage and Family Therapy from Southern Nazarene University. She is a registered Licensed Professional Counselor with the State of Oklahoma.

She has a passion for helping families, especially women, determine who they are in Christ and their purpose as they navigate life’s struggles and hardships.

Deidra enjoys singing at church, spending time with her family and friends, classical music, and riding with her husband on his Harley.

Annette Bogard, M.S., LPC, NCC

Annette is a Licensed Professional Counselor who earned her earned her Master of Science from Northeastern State University in Clinical Mental Health Counseling.  She has advanced training in Acceptance and Commitment Therapy (ACT), Cognitive Behavioral Therapy, Solution Focused Therapy and is certified to provide Trauma-Focused Cognitive Behavioral Therapy and is a SYMBIS Facilitator for pre-marital counseling. Although she has worked primarily with children and parents during her professional career, she also has experience working with individuals and couples, having been trained in the Prepare-Enrich assessment program for strengthening premarital and marital relationships. Annette has also been trained in Psychological First Aid and has volunteered time assisting in the community in the aftermath of tragic loss. She is a member of the American Counseling Association, the Association of Contextual Behavioral Science and Rho Theta Sigma Honor Society.

Annette draws on her Christian faith as a framework for living her own life, as a source of hope and strength as well as how to be a compassionate, empathetic helper to others. She and her husband have two sons. During her spare time Annette enjoys spending time with family and friends, exercising, listening to music, cooking, reading and being outdoors gardening, walking, or hiking.

Madeline Dozier, M.A., LMFT Candidate

Madeline Dozier, M.A. is a registered Licensed Marriage and Family Therapist Candidate.  She earned her Master of Arts in Marriage and Family Therapy from Southern Nazarene University. She received her Bachelor of Arts degree in Psychology with a minor in Sociology from Oral Roberts University (ORU). Madeline is certified in SYMBIS, a premarital curriculum. She is also a member of the American Association for Marriage and Family Therapy (AAMFT). 

Madeline is passionate about helping individuals, couples, and families find healing in their past by regaining their voice and finding their true identity in Christ so that they may fulfill their true purpose in life. 

Madeline enjoys spending time with her friends and family, running, reading and travling.

Kristen Snyder, M.A., LMFT Candidate

Kristen Snyder, M.A. is a registered Licensed Marriage and Family Therapist Candidate at Cornerstone Christian Counseling Services (CCCS). She earned her Master of Arts in Professional Counseling at Oral Roberts University in Tulsa, OK. She received her Bachelor of Arts degree in Communication with a secondary major in Psychology also from Oral Roberts University. Kristen is recognized by the Oklahoma Department of Mental Health and Substance Abuse Services as a Behavioral Health Wellness Coach.

Kristen is passionate about helping people discover a more authentic way of living. She believes in addressing the root of problems in order to create lasting change. In her experience, Kristen has found that people are often controlled by fear, shame, and anxiety that inhibits them from living freely. She enjoys patiently walking with clients through the therapeutic process to help them become more driven by love, grace, and peace. Kristen seeks to not only understand people on the individual level, but to also take into account the system around them, the patterns they get stuck in, and their relationship dynamics. Kristen believes that the ultimate agent of change in therapy is the Holy Spirit working in clients’ hearts and minds.

Kristen’s areas of specialty and interest include pre-martial counseling, marital conflict, anxiety, self-worth development, trauma recovery, and communication issues.

Kristen and her husband, Bryce, have been married since 2015. They describe their marriage as playful, committed, and empowering. Kristen enjoys exercising, reading, traveling, and spending quality time with friends and family.

Gregg Nelson, LPC Candidate

Gregg Nelson is currently an LPC Candidate staff therapist here at Cornerstone.  He received his Bachelors of Arts Degree in Biblical & Theological Studies from Regent University in 2012. He holds specialized certification in the field of Spiritual Care in Crisis Intervention from the International Critical Incident & Stress Foundation, Inc. and is involved with numerous Critical Incident Stress Management (CISM) teams across the country. He is a certified Gottman Seven Principles Program Leader, is an ordained minister, serves on the Board of Directors of numerous nonprofit organizations as a consultant and is a member of the American Association of Christian Counselors (AACC).

Gregg is dedicated to individuals, couples and leaders to help Educate, Equip, Encourage and Empower their lives, relationships and careers. He works along side his clients to find hope and healing through knowing who they are in Christ and discovering their identity and value in Him. Gregg’s areas of specialty include spiritual, relationship, leadership, pre-marital, couples, loss, grief, stress and crisis/trauma issues.

Gregg enjoys traveling, networking, volunteering, reading, going to his son’s swim meets and spending time with friends & family.