What patients are saying
Overall rating
4.67
Average wait time
4.78
Bedside manner
4.67
“I feel so hopeful after speaking with Stacy O'Brien about my health concerns; she obviously has lots of relevant experience and knowledge, and I look forward to continuing to work with her. So glad I found her through ZocDocs!”
Amy K.March 11, 2026Video visit
“Stacy is an attentive, flexible, and excellent dietitian to work with overall. I highly recommend her to prospective patients who are interested in embarking on their journey toward better health and nutrition.”
EHLess than 6 months ago
About Stacy O'Brien
I take an integrative approach to nutrition, which means I look at you as a whole person. I'll assess not only what you eat but also all of your symptoms, lab work results, lifestyle, sleep, stress, and more to help you find a way to improve your health and quality of life.
I take the time to listen to your story, to understand your goals, your symptoms and your lifestyle. In this way we are able to come up with strategies to get you feeling your best!
I specialize in nutrition for gut health. The diagnoses and symptoms that I help my clients with include IBS, SIBO, Celiac Disease, food sensitivities, low FODMAP diet, bloating, constipation, diarrhea, reflux, and many other gastrointestinal concerns. Additional testing is available as needed (gut microbiome, SIBO testing, other stool testing, etc.) in order to get to the root cause of your symptoms.
I also enjoy helping people with weight loss, pre-diabetes, high cholesterol, and high blood pressure. My clients are often telling me that they are no longer prediabetic, or that they have managed their cholesterol or blood pressure through changes to diet and lifestyle.
I earned a Bachelor degree in Nutrition and Food Science Dietetics from Montclair State University where I graduated Magna Cum Laude. I completed my Dietetics Internship at Iowa State University.
Schedule an appointment today and let's use the power of nutrition to improve your daily life! I look forward to working with you!
Is this doctor in your insurance network?
Enter your insurance carrier and plan
choose insurance
In-network insurances
99% of patients have successfully booked with listed insurances
Stacy O'Brien, RD has 200+ in-network plans.
Education and background
Practice names
Board certifications
- Commission on Dietetic Registration
- Registered Dietitian (RD) (Commission on Dietetic Registration)
- Registered Dietitian Nutritionist (RDN) (Commission on Dietetic Registration)
Education and training
- Montclair State University, Bachelor’s in Nutrition and Food Science Dietetics
- Iowa State University, Internship in Dietetics
- University of Pittsburgh (Bachelor's)
Languages spoken
- English
Provider's gender
Female
NPI number
1578050217
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.67
Wait time
4.78
Bedside manner
4.67
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
33 reviews
Most relevant
I feel so hopeful after speaking with Stacy O'Brien about my health concerns; she obviously has lots of relevant experience and knowledge, and I look forward to continuing to work with her. So glad I found her through ZocDocs!
March 11, 2026Amy K.Verified patientVideo visit
Stacy is an attentive, flexible, and excellent dietitian to work with overall. I highly recommend her to prospective patients who are interested in embarking on their journey toward better health and nutrition.
Less than 6 months agoEH
Stacy is great! She is very good at helping me set goals and thinking through ways to meet them. She is non-judgmental, and uses real science-backed methods to explain issues. I appreciate that she has been willing to pivot when a specific tactic doesn't work for me!
Less than 1 year agoDC
I would strongly avoid this practitioner--while she was nice, her portal wouldn't work and she tried to blame me instead of acknowledging the tech issues. After several days of back and forth emails I finally gave up and decided it wasn't worth it.
October 10, 2024Arianna K.Verified patientVideo visit
She was so helpful and responded quickly when I needed a last minute appointment. She has given me more information than most providers I have worked with in years . I highly recommend .
August 21, 2023Brianna D.Verified patientVideo visit
She was more helpful than any doctor I have been to. She actually listened and cared about my symptoms, and was able to give me great advice beyond just dietary. Feeling hopeful about my health for the first time in months!
July 27, 2023Ashlyn L.Verified patientVideo visit
Stacy took her time to listen and review all my documents with me and made sure I understood the information, even providing examples.
July 22, 2023Sabine S.Verified patientVideo visit
Stacy is the best nutritionist, she is a great listener and created a plan customized for me and provided recommendations on how to be healthier.
July 6, 2023Katerina C.Verified patientVideo visit
Ms. O'Brien was very nice, but the eating plan she recommended for me just wasn't realistic. Another nutritionist had put me on a strict carb-control plan and I was really struggling with it (constant hunger, fatigue, obsession with food). She said she could help me with that, but all she did was allow me one more carb serving at one meal. When I spoke to my doctor, she agreed that both plans were far too strict for my needs. Also, both dieticians said fiber counts as a carb, which my doctor said was wrong. So if you are seeking help with blood sugar, go to a different dietician, or at the very least run any plan she gives you past your doctor before starting it.
November 16, 2022Amy L.Verified patientVideo visit
Stacy is an exceptional resource! At a time when my 7 year old daughter was diagnosed with colitis, we were overwhelmed and in need of guidance. Within a week and a half of following Stacy's recommendations, we saw her symptoms begin to subside. This started a journey of us better understanding the inflammation in our daughter's bowel and furthermore, it taught me (as her mother) how to best guide/feed her in a way that was supportive to her health. I always tell people that Stacy was the angel that we needed in a really difficult time. I would highly recommend her for any nutritional/dietary support. She is wise, kind and so supportive and we are forever grateful for her!
More than 1 year agoEF
"Stacy listened to my concerns and truly helped me work through my GI discomfort to help me feel better.'' I never had anyone help and truly listen to me. I highly recommend Stacy!
More than 1 year agoCF
Stacey is the most welcoming and kind dietician I have ever seen! She and so kind and immediately makes your feel comfortable. She's one of those providers like LIKES a challenge and will be determined to get you on the right track!
More than 1 year agoAC
I had such a wonderful experience working with Stacy O'Brien. I came to her with some GI issues that I needed help with resolving. Stacy was kind, very non-judgmental, took everything I said seriously, and helped guide me towards some important changes. She suggested that I keep a food diary for a couple of weeks in between our appointments, but I told her honestly that I did not have the patience for that (difficult patient!). She was understanding and explained that I could learn more about what was causing my stomach upset if I wrote down what I ate. I agreed to compromise and wrote down anything that preceded a stomach ache. We were able to get to the root of what my issues were (relatively quickly) and I am so grateful. Stacy also magically transformed me into someone who drinks enough water every day! From our first meeting, she made me feel comfortable and cared for and I know that she is an excellent resource who I can call upon if and when I need her again.
More than 1 year agoBP
I had no idea how to achieve my fitness goals by eating properly before visiting Stacy. She pays close attention to detail and develops a very interpersonal relationship with her clients to understand where they are in their fitness/diet journey. She is openminded and does not provide rigid solutions, rather her advice is very flexible and easy for clients to incorporate into their day-to-day lives. I would totally recommend her to a friend or any other prospective client.
More than 1 year agoMN
Stacy is super knowledgeable about the complexities of GI health and has helped me improve my quality of life. I would highly recommend working with Stacy for any GI or dietary related issues.
More than 1 year agoML
March 7, 2026Kelly C.Verified patientVideo visit
August 27, 2024TASNIM J.Verified patientVideo visit
June 20, 2024Taylor C.Verified patientVideo visit
More than 1 year agoInitials hiddenVideo visit
February 12, 2024Phoebe F.Verified patientVideo visit
February 2, 2024Erron H.Verified patientVideo visit
More than 1 year agoInitials hiddenVideo visit
More than 1 year agoInitials hiddenVideo visit
More than 1 year agoInitials hiddenVideo visit
May 24, 2023Miriam G.Verified patientVideo visit
April 28, 2023Eunji K.Verified patientVideo visit
April 20, 2023Paola M.Verified patientVideo visit
April 6, 2023Joi W.Verified patientVideo visit
March 27, 2023Briana N.Verified patientVideo visit
More than 1 year agoInitials hiddenVideo visit
More than 1 year agoInitials hiddenVideo visit
May 7, 2022Frank A.Verified patientVideo visit
March 16, 2022Initials hiddenVideo visit
March 7, 2022Jennifer N.Verified patientVideo visit
How soon can I make an appointment with Stacy O'Brien?
Generally, Stacy O'Brien has appointments available on Zocdoc within 1 week. You can see Stacy O'Brien's earliest availability on Zocdoc and make an appointment online.
Is Stacy O'Brien accepting new patients?
Stacy O'Brien generally accepts new patients on Zocdoc. You can see Stacy O'Brien's earliest availability on Zocdoc and schedule an appointment online.
Does Stacy O'Brien accept my insurance?
Choose your insurance plan to verify if Stacy O'Brien is in-network.
Can I make an appointment with Stacy O'Brien online?
Yes, you can make an appointment online with Stacy O'Brien using Zocdoc. It’s simple, secure, and free.
What practice does Stacy O'Brien work with?
Stacy O'Brien works with SO Nutritious.
Which board certifications does Stacy O'Brien have?
Stacy O'Brien is certified by Commission on Dietetic Registration, Registered Dietitian (RD) (Commission on Dietetic Registration), and Registered Dietitian Nutritionist (RDN) (Commission on Dietetic Registration).
What are common reasons for patients to see Stacy O'Brien?
Stacy O'Brien frequently sees patients for Irritable Bowel Syndrome, New Patient Visit, Obesity / Weight Loss Consultation, Type 2 Diabetes, and Weight Loss Consultation. You can see other visit reasons for Stacy O'Brien on their profile.
What languages does Stacy O'Brien speak?
Stacy O'Brien speaks English.
How do patients rate Stacy O'Brien in reviews?
33 patients have reviewed Stacy O'Brien. The overall rating for this doctor is 4.67/5. They have a 4.67/5 rating for bedside manner and a 4.78/5 rating for wait time. You can read individual reviews and ratings on their profile.