Greg Waltz, PMHNP

Greg Waltz, PMHNP

Nurse Practitioner

Accepting New Patients


Master of Science in Mental Health | Maryville University

Bachelor in Nursing | Ohio University


  • English


  • In Person
  • Online

Insurance Accepted

  • Aetna
  • Blue Care Network
  • BCBS
  • Priority Health
  • Self Pay

Type of Therapy

  • Cognitive Behavioral Therapy (CBT)
  • Medication Evaluation & Treatment
  • Mindfulness-Based Therapy
  • Motivational Interviewing

Patient Population

  • Adults
  • Teens

Issue Focus

  • ADHD
  • Anxiety / Depression
  • Medication Management
  • OCD
  • Personality Disorders
  • Substance Abuse


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About Me: Greg Waltz

Greg is a board certified psychiatric mental health nurse practitioner (PMHNP-BC) who is passionate about connecting with his clients to determine an individual treatment plan that works. He has extensive experience in both inpatient and outpatient mental health settings, but has found helping individuals in the community to be most fulfilling. He obtained his bachelorette in nursing from Ohio University and his Master of Science from Maryville University where the focus was in mental health. His expertise is in utilizing the best evidence available to guide psychopharmacological treatment while incorporating a holistic approach unique to the individual. He understands that starting medication is a big decision, and therefore needs to be the right fit at the right time. In some cases medication may not be appropriate, so he does not “push meds". Greg specializes in the treatment of ADHD, Anxiety, Depression, OCD, and Bipolar Disorder, Type 2.

My Unique Approach to Therapy

Connecting with each client is a vital part of my practice, unlike some providers in mental health, I view each person as important and not just “a number“. I find that checking in regularly with clients about their goals and current satisfaction helps foster a trusting client/provider relationship focused on individual growth. Also, I find it important to work with each person in identifying any barriers that may be present which could hinder therapy and medication from “doing their job“. I firmly believe that positive mental health and well-being does not happen in “a vacuum”, but many factors affect this, therefore a holistic approach is required to achieve lasting results.

Specialized & Extended Training

I take pride in staying up-to-date with current research, utilizing evidence-based practice, and keeping familiar with the latest data. My extensive and varied work experience allows me to have empathy and understanding for all of my clients no matter what their story holds. This comes from 14 years of patient care experience including inpatient psychiatric hospitalization, outpatient medication management, and also partial hospitalization programs.Along with all Start My Wellness therapists, I attend at least 120 hours of extensive ongoing training and personal development each year on treating a range of mental health concerns. This rigorous instruction allows us to provide patients with the highest quality of service.

David Sims
David Sims
I received an affordable, thorough psychological assessment by Dr. Bloom. He was very helpful, knowledgeable and insightful. I very much appreciate the service he offers because full neuropsychological testing is expensive and nearly unobtainable for people with certain types of insurance. I paid out of pocket and it was worth every cent.
Curtis Jemison
Curtis Jemison
It's not normal for me to write reviews. The service that I received from the staff at Start my wellness, was absolutely amazing! The response and help from Rayven at the front desk was extremely helpful. She was able to walk through the process without making me feel rushed or pressured. She was knowledgable of the everything I need to be seen in a timely and professional manner. The treatment team was caring and warm. I didn't feel like "Just another patient", or embarrassed about my conditions. Thank you all for helping me.
Sabreen Nafsu
Sabreen Nafsu
I love talking with Laila. I feel really comfortable and she seems genuinely kind. I look forward to my appointments with my psychiatrist now thanks to her, which is something I never thought I would say.
Chelsey Steele
Chelsey Steele
I love this place. I look forward to coming here! Everyone is helpful around the office and my particular person help me stay sane every week!
Irene Roberts
Irene Roberts
Wonderful practice. Provide primarily virtual sessions which is preferred for me. Dr. Marashi is very knowledgable and helped me finally for the first time in my adult life nail down a combination of medications to help manage my PMDD and ADHD struggles. I could not have achieved everything I have in the past year without her support and knowledge. I recommend to everyone that struggles with their mental health.
Pearl Fonbuena
Pearl Fonbuena
They understand and listen. Couldn’t ask for a better place to go to!
Sean Gossard
Sean Gossard
Lauren Anderson is the best!