affordable, effective Mental health services
Ketamine therapy starts at $250 with insurance and Spravato (esketamine) at no cost other than insurance.
Our Services
Ketamine
Ketamine works by producing release of the glutamate neurotransmitter in the brain, allowing new synapses to form within 24 hours.
Spravato
Spravato™ is the brand name for the prescription medication, esketamine. Esketamine, the S-enantiomer of racemic ketamine, is a nonselective...
IV Vitamins
Vitamins are organic substances that are essential in many bodily functions and overall good health. They play an important role in regulating...
Weight Management
We offer a medically supervised weight loss program tailored to your needs. A typical program is 12 weeks with a potential weight loss of 5-10% of the total body weight.
Who We Are
We are psychiatric providers specializing in treatment-resistant disorders including Major Depressive Disorder, Bipolar Disorder, Post-Traumatic Stress Disorder, Obsessive-Compulsive Disorder, and Generalized Anxiety Disorder.
At Our Clinic You Will Find:
A warm, friendly environment with Board/REMS/ACLS-certified providers.
Safe and effective dosing with monitoring that is minimally intrusive.
A treatment room to yourself with sufficient time for your recovery after treatment.
The Results
Improvements in Symptoms
Our patients* report sustained improvements in their symptoms after their treatments
Depression
Treatments
OCD
Treatments
Immediately After
Treatment
1 Month After
Treatment
Insurances
testimonials
What they say
Mika, Jessica, Nadine, and Lynn are caring, professional, and so accommodating. They go out of their to make you feel comfortable and get the best out of the treatments.
Vanessa Bessa ⭐⭐⭐⭐⭐
Dr. Flannagan is fantastic. One of the best I have had in my life.
Larry Giglio ⭐⭐⭐⭐⭐
I can’t say enough amazing things about this office and the people that work here. Specifically Jessica Shepley, Nadine, Mika and Lynn. These treatments have changed my life and I could not be more grateful for the outcome. I strongly recommend them for the best psychiatric care and treatment. Hands down the best experience
Sal Marciante ⭐⭐⭐⭐⭐
The most wonderful place in the world. My life has been changed. My life has been changed. The people who work here are kind,compassionate, caring and smart.If you are thinking of ketamine treatment or want to emerge from depression’s depths come here. Call here.
Levi Kahane ⭐⭐⭐⭐⭐
Highly recommend this clinic. They offer Ketamine Infusions with the best care and price. Glad there’s a psychiatrist on site and not some anesthesiologist trying to cure mental health.
Lugo Lundi ⭐⭐⭐⭐⭐
I cannot describe my gratitude to Cornerstone Psychiatric Care. The time and effort they put in to getting you the help you need is inspiring. They have completely transformed my life and I finally feel like I have my life back because of them. Jessica Shepley and Nadine Causey go so far above and beyond helping you as a patient. The relationship they built with you as a client is so amazing and makes you feel so welcome and comfortable. I’ve never been to a facility that has provided care like this and I wish others would follow their lead. Again, this place truly saved my life I wish I could give them more than a 5 Star review.
Gabriella Mowery ⭐⭐⭐⭐⭐
Very nice office staff and very friendly and welcoming highly recommend
Tracie S ⭐⭐⭐⭐⭐
I have been a patient of Dr Ettensohn's ketamine therapy and followed him and Jessica Shepley to this new location where I met Chelsea in the office and absolutely love her too. Not only has ketamine continued to - literally save my life from my treatment resistant depression, but the entire staff is the most compassionate, helpful, and caring group of people I have ever met! When I am going in for an infusion, I'm usually at my worst; crying around the clock and barely able to make it to my appointment. They help me every step of the way, no judgment, just love and empathy and support. Each one spends one-on-one time with me, truly caring about what I'm going through and preparing me for a healing ketamine journey, ensuring I am completely safe and comfortable the entire time. I respect and admire these people so much, I will follow them anywhere and recommend ketamine therapy at this office to anyone with depression, ptsd, chronic pain and lethargy, and/or unstable emotions, because it works better than the hundreds of psych meds I've tried throughout my life. I am so so grateful for this office 💙
Herbologist Laura (euFLoria healing) ⭐⭐⭐⭐⭐
I have been taking my fiancé here for years and the staff is great. They treat us really well and are very caring. They always ask how both of us are doing even though I’m not the patient. I can’t/wouldn’t think of bringing my fiancé anywhere else. The office is so nice looking and is meant to put you at ease. I just can’t put into words how much I appreciate this place.
Christina Taft ⭐⭐⭐⭐⭐
Absolutely Incredible! Words can not express the appreciation I have for the people at Cornerstone Psychiatric Care. The level of genuine compassion and quality of care they provide is unlike anything I've ever experienced. This establishment has made all the difference in my quality of life in a short period of time. I highly recommend their services to anyone!
Ralph Ray ⭐⭐⭐⭐⭐
Passionate is an understatment. Dr.Ettensohn and ARNP Jessica Shepley treated my mother and we couldn't be more thankful. Depression has no longer taken a toll on our family. I highly recommend visiting them!
Kath H ⭐⭐⭐⭐⭐
Dr. Marc is very understanding and accommodating. He led me through positive coping strategies and helped me find a long term solution for my stress and anxiety. I don't usually write reviews but he changed my life! I highly recommend this practice for anyone who is struggling emotionally.
Karla Banks ⭐⭐⭐⭐⭐
I have had a really positive experience with Dr. Flannigan and ARNP Jessica. They are compassionate and extremely knowledgable in their field. I would highly recommend them to anyone with treatment resistant depression. I also appreciate that if you need something or have a question between appointments they do a really good job of helping out.
Peter Scott ⭐⭐⭐⭐⭐
Dr Flanagan is the best! He is sincere, makes you feel comfortable and explains everything well.
Crystal ⭐⭐⭐⭐⭐
Coming here twice a week is seriously the highlight of my day. It feels like family and they can have me talking for hours. So friendly, affirming and welcoming. They truly believe in what they do, and as do I. I’m truly grateful for both Jessica’s and this practice for actually caring for my mental health, when i was I in a place that I couldn’t.
Paul Zilber ⭐⭐⭐⭐⭐
Dr. Flanagan has proven to be a genuinely compassionate doctor and a true advocate for mental wellness. Treatment is not necessarily restricted to medication. He actively listens in each session, and offers helpful perspectives and behavioral mechanisms to overcome challenges in my life in addition to treatment by medication. And he doesn't give up when it's hard. I was uncomfortable with the side effects of MANY medications, and Dr. Flanagan heard and respected my concerns and made adjustments to accommodate. He has demonstrated he goes above and beyond his role as simply a psychiatrist. When my pharmacy was unwilling to help in refilling an important prescription, Dr. Flanagan stayed late and called my insurance company in after hours to resolve the issue and ensure my treatment wouldn't be affected. This compassion was also apparent through his staff member Rafi, who kept me in the loop through the entire process. I am very grateful to have been a patient of Dr. Flanagan's for over 2 years and I am proud of the progress I've made under his care.
Grant Kleiner ⭐⭐⭐⭐⭐
I have know Dr. E and Jessica for two years and have nothing but the highest praise for their skill, professionalism, compassion and caring. They are intelligent, knowledgeable, attentive and a very effective team whom I would recommend to anyone.
Charles Matthews ⭐⭐⭐⭐⭐
The greatest staff ever!! So caring and knowledgeable!
Deborah Mowery ⭐⭐⭐⭐⭐
Dr. Marc Ettensohn and Jessica Shepley ARNP provide phenomenal psychiatric care for those with depression, anxiety and PTSD. I highly recommend them.
Justin McManus ⭐⭐⭐⭐⭐
Cornerstone goes above and beyond what is commonly considered superb psychiatric care. The love, patience, and care the team fosters is a warmth that flows from their office. Whether online or in-person, the emotional, mental, and clinical support provided is second to none. They devote all of their attention to every patient that walks through the door to assist them as quickly and accurately as possible.
My own experience with them led to the adoption of my new medication for Bipolar II Disorder. They assisted me in every way possible, recommending books to read, actions to take, and medication that would balance my mood. They cared about me every step of the way. They brought light on days when I could only see a black sky and would burst into sobbing tears randomly. On days when the sun shone through, they celebrated with me. My victories were theirs as well as my sorrows.
The things I learned from my time at Cornerstone helped me find both a medication to help balance my mood and the skills to recognize my mood cycle. One year ago when I met them, I thought consistently about dying. I couldn't convince myself to do the things I loved like swimming, writing, and reading. Worst of all of that was I couldn't sleep to have some energy the next day. It was starting to wear a hole in my resolve and my will to live. Now, I just finished a five moth trip walking the Appalachian Trail. I read every day (yesterday, I finished a novel from the Wheel of Time series in three days), I write (I'm writing my own novel at page 89), and I swim at the gym. I do all the things I want to and when my mood swings low (every 9-12 days lasting for 1-3) I recognize it, filter negative thoughts, and adapt to find the peace I need through meditation, writing, and swimming. I feel whole again, a master of my own mind and body, unaffected by my lessened mood swings. Cornerstone gave me the tools I needed to achieve this and for that I am eternally grateful.
Matthew Blade ⭐⭐⭐⭐⭐
I want to personally thank CP Care for helping me battle my depression with their ketamine and vitamin infusions. I was very skeptical at first, but after speaking with Chelsea in patient services who is very knowledgeable and compassionate she got me set up with Dr. Ettensohn and Jessica his ARNP who is also very compassionate. I started to feel a difference very soon after my first infusion. The office has an organic vibe and I felt safe, like I was in good hands. I highly recommend. THANK YOU CP CARE !
Brittney Miller ⭐⭐⭐⭐⭐
Jessica (ARNP) is very compassionate and Mika (front desk) is so sweet. they both makes sessions seem less intimidating. instead, i look forward to seeing their faces and catching up each week.
Hannah Mallette ⭐⭐⭐⭐⭐
I really wanted to give a shout out to Chelsea, she’s amazing at what she does and really cares about everyone she works with. Extremely thoughtful and keeps you up-to-date. Dr. Jaison Nainaparampil is phenomenal as well, I feel like they are the dream team over there. Thank you so much for all of your assistance.
Jonathan Kane ⭐⭐⭐⭐⭐
I've been a patient of Dr. Ettensohn for a few years now and my experience has been nothing short of amazing. You can tell how kind he is by the way he speaks to you. The nurses (Jess and Nadine) are the best. I feel that they really care about me as a person. The woman at the front desk (Mika) is just so welcoming. When she says hi to me, it feels like she's actually happy to see me.
When I go in for ketamine treatments, I don't feel like I'm going to the doctor's office. It's such a warm environment that I feel like I'm hanging out with family.
Dan Molloy ⭐⭐⭐⭐⭐
I appreciate all the reminders about upcoming appointments and Jessica Coote, APRN takes such good care of me. I highly recommend this practice!
Carly Magnuson ⭐⭐⭐⭐⭐
Cornerstone has helped me tremendously. Everyone from office staff to clinical staff are nothing short of excellent. Dr. Flanagan spends so much time with me during my appointments. He always makes time for me to ask questions and explains his answers thoroughly. He works in collaboration with his clients which has been crucial to my success. You are definitely in the drivers seat with your care and he is an excellent guide. I have always felt 100% safe being myself and discussing topics that can be uncomfortable. I cannot say enough good things about Dr. Flanagan, Mika (who is always kind, welcoming, and friendly), and this practice as a whole.
My mental health and my life has improved and continues to improve beyond my wildest dreams.
Lisa Drehmann ⭐⭐⭐⭐⭐
At wits end I searched for novel treatment for a depression not responsive to trials with many medications. The entire staff, along with my psychiatric provider, have can nothing but caring, supportive and hopeful to experience my recovery too. From the initial call to the psychiatric appointment to many calls with the staff and nurse-nothing but outstanding service. I've been to hear doctors and hospitals around the country and can honestly attest to care second to none. My journey is just beginning and today will be my second treatment with Spravato, the brand name for eaketamine. It's done in the psychiatric office and Uber the supervision of my healthcare providers. My first treatment went well, however that was only two days ago and at current nothing has changed yet. I'm used to trying a drug that night take over a month before I notice any changes and always with side effects. The future will potentially be much brighter for me and I'll keep posting with the good news.
Update: I've received consistent quality care and support since beginning SPRAVATO treatment for my condition. I am profoundly certain that this treatment is life saving and should be viewed this way by health insurance companies and by local, state and federal agencies. This has been a smooth and compassionate process with a truly top class group of clinicians, nurses and support staff. Five Stars
Keep Faith ⭐⭐⭐⭐⭐
Need help finding the office?
Palm Beach Gardens, FL
8895 N. Military Trail, Building E
Palm Beach Gardens, FL 33410
- Suite 301 - General Psychiatry and Medication Management
- Suite 306 - Ketamine and Spravato
We're on the third floor in building E, the one closest to the Shell station.
Monday to Friday : 8:00am - 6:00pm
Saturday and Sunday : Closed
Open Hours
Tampa, FL
13801 Bruce B Downs Blvd Suite 305,
Tampa, FL 33613
We're on the third floor of the University Community Medical Center building
Monday, Wednesday and Friday : 8:00am - 6:00pm
Saturday and Sunday : Closed