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Advanced Care Basic
2 specialties4.89
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.89
Wait time
4.81
Bedside manner
4.92
Insurances accepted
99% of patients have successfully booked with these insurances
Aetna
Highmark Blue Cross Blue Shield of Delaware
UnitedHealthcare
Cigna
Blue Cross Blue Shield





Book an appointment for freeThe office partners with Zocdoc to schedule appointments
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Available appointments
All provider availability
All provider availabilityToday, Apr 5 – Sat, Apr 18
Insurances accepted
99% of patients have successfully booked with these insurances
Aetna
Highmark Blue Cross Blue Shield of Delaware
UnitedHealthcare
Cigna
Blue Cross Blue Shield





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Advanced Care Basic
Meet Hallie Katrina Dennison, a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with 8 years of experience. Hallie earned her BSN and MSN from La Salle University and her PMHNP post-masters from the University of Cincinnati. She is also board-certified as an Adult-Gerontology Primary Care Nurse Practitioner.
Hallie specializes in treating a variety of psychiatric conditions, including depression, anxiety, bipolar disorder, ADHD (starting at age 7), schizophrenia, and personality disorders. She is certified in Transcranial Magnetic Stimulation (TMS) and holds a Medication-Assisted Treatment (MAT) waiver.
Hallie is a member of the Sigma Theta Tau International Honor Society for Nursing and the American Psychiatric Nurses Association. Her dedication to providing compassionate and comprehensive care makes her a trusted provider in the field of mental health.
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.89
Wait time
4.81
Bedside manner
4.92
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
28 reviews
Most relevant
This was my first appointment with Ms. Dennison. She was wonderful! She understood my troubles and was very easy to talk to.
August 24, 2025Kevin C.Verified patient
Ms. Dennison seems very knowledgeable and caring. I appreciate that she has after hours appointments available.
January 29, 2025Robert M.Verified patient
I like this service, I would definitely use it again. It was fairly easy to book and appointment with them.
January 28, 2025Erma B.Verified patient
This practice is very professional. Has always worked well with me. I recommend them to anyone!
JWVerified patient
I thought it was very professional and it was very easy for me to speak and open up.
ABVerified patient
I highly recommend Hallie. She is an excellent clinician!
January 15, 2025Keith K.Verified patient
Knew exactly what to prescribe and how to best help me.
ABVerified patient
She’s amazing. What an excellent first impression! It’s hard being an adult college student and mother who is still plagued with the symptoms of adhd that prevented me from doing well in school growing up. Trying to maintain a more holistic , non medicated lifestyle wasn’t working for these symptoms and Dr. Dennison made explaining all of these things so easy as she is the greatest listener. The main thing I can say about her is she above all else is REAL- not some robotic, typical medical professional that seems like they are attending to a conveyor belt of patients just passing through. I look forward to having a provider that sees me as an actual person rather than just a number and is caring compassionate and REAL. Highly recommended! :)
February 7, 2025Lindsay F.Verified patient
She is very understanding, polite, Kind and takes Mental health very serious. She's never late as well as she takes her time gettin to know you.. Very very Kind lady!
SMVerified patient
I recently had an appointment and I couldn't be more satisfied with the experience. Scheduling was incredibly easy, and I appreciated the flexibility in available time slots. The appointment was punctual, respecting my time by starting the appointment right on schedule. Throughout my appointment, she was professional and attentive, thoroughly addressing all my concerns. I highly recommend!
KFVerified patient
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Advanced Care’s Basic Mental Health Services have been an incredible support system for me. From the moment I started, I felt comfortable and genuinely cared for. The team is warm, professional, and attentive, creating a space where I could truly open up. They provided practical tools and a personalized approach that have made a real difference in my everyday life. My mental health journey has been so much more manageable and positive thanks to them. Highly recommend to anyone looking for compassionate, effective mental health care!
TMVerified patient
Hallie is an absolutely wonderful practitioner who has accommodated with helping me make some solid decisions and achieving the best results possible.
MMVerified patient
Dr. Dennison is a great doctor, she is very patient and understanding. She makes you feel like you can tell her anything you want and don’t feel uncomfortable about it. She’s very professional and always on time with our calls. I will continue to see Dr. Dennison. I highly recommend her! 10 out of 10. There’s not too many of these doctors. She is a rare blessing in the medical field.
BEVerified patient
I felt like someone really listened to me and understood what i was feeling thank you for all of your help!! Higlhly reccomend
HDVerified patient
Truly cannot say enough about Hallie! She is always accommodating, very flexible, no waiting around to be seen ever!
She responds to medication refills, and gets things done fast. Always professional and in a pleasant demeanor. She always works with me to make sure I get what I need to keep myself well. She works diligently to make sure my medicine is on time, and has been very good at working with me to ensure I’m getting an adequate dose. Listens attentively to my concerns and gets back to my pharmacy quickly. She has been able to troubleshoot every issue within 24 hours. Wont go anywhere else, not one provider is s attentive to my needs as HALLIE! Highly recommend.
MSVerified patient
October 8, 2025Kevin C.Verified patient
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April 25, 2025Sianni C.Verified patient
March 14, 2025Rebecca R.Verified patient
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February 19, 2025Madeline R.Verified patient
February 18, 2025Ethan P.Verified patient
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January 29, 2025Tiffany P.Verified patient
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