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Fit4Life Nutrition
2 specialties5.00
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
5.00
Bedside manner
5.00
Insurances accepted
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
UnitedHealthcare
Book an appointment for freeThe office partners with Zocdoc to schedule appointments
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Fit4Life Nutrition
AZ
All provider availabilityToday, Apr 2 – Wed, Apr 15
Insurances accepted
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
UnitedHealthcare
Providers at Fit4Life Nutrition (0)
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Fit4Life Nutrition
***PLEASE READ: When you schedule an appointment, we’ll email you a few clinic forms to complete, including nutrition history, insurance information (verification optional but recommended), and our credit card authorization. PLEASE NOTE: We require a debit/credit card on file even if you have insurance. Once we receive all forms, your appointment will be confirmed. If you prefer to self-pay, our rate is $180 per 55-minute session. Please note a $150 fee applies to late cancellations, late appointment modifications, and/or no-shows as insurance does not cover this fee. We thank you for your understanding and look forward to supporting you on your health journey!***
Are you struggling to lose weight and maintain your progress? Look no further—I’m here to help!
Hi, I’m Isaac, a Licensed Dietitian Nutritionist and Certified Personal Trainer at Fit4Life Nutrition, a nationwide telehealth company that specializes in weight loss partnering with Zocdoc.
What sets us apart is our approach, rooted in Motivational Interviewing (MI) and Acceptance and Commitment Therapy (ACT). We help clients build sustainable habits—not quick fixes—by working in a supportive, non-judgmental way to strengthen motivation and align actions with personal values.
Instead of rigid diets, We focus on improving your relationship with food, building consistency, and navigating real-life challenges with practical strategies. We help clients increase mindfulness and flexibility so you can stay committed to your goals even when obstacles arise.
Support doesn’t stop when sessions end. You’ll also receive an evidence-based Motivation & Action Toolkit to help you stay on track between visits, including:
1. Personalized goals aligned with your values
2. 7 principles for long-term motivation and commitment
3. Strength-based quotes for encouragement
4. Curated recommendations (books, audiobooks, podcasts, YouTube)
5. Evidence-based weight loss resources
Let’s work together to create lasting change and help you reach the results you’ve been working toward.
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
5.00
Bedside manner
5.00
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
21 reviews
Most relevant
Issac provided a good foundation for nutrition. Would recommend for anyone wanting to eat better and feel better.
PPVerified patient
Isaac Diaz is knowledgeable and an excellent listener. I would definitely recommend him.
MTVerified patient
Isaac was very personable, he answered my questions and I have high hopes for our next session.
DPVerified patient
Very professional and very friendly while explaining things that are completely understand
HHVerified patient
I learned a lot! I can’t wait to learn more about nutrition and ways to improve my health.
SSVerified patient
Isaac was professional and helpful in all sessions
AVVerified patient
Isaac is great! It really seems like he “gets it” and he has an impressive, multidisciplinary knowledge. He was delivering breakthroughs as early as our first session!
BPVerified patient
I am very pleased with the work I have done with Isaac. He listens and provides manageable steps and actions you can take to meet your goals. He shares knowledge so that you can make good decisions and choices on the way to a healthier lifestyle. Highly recommend!??????
DHVerified patient
He was very welcoming and friendly, yet professional. Definitely felt like he was there to support me and my goals in the best way possible. Highly recommend him to anyone especially for athletic goals!
DCVerified patient
Seeing Isaac as a dietitian was a great decision. He was very easy to talk to, and appreciated my honesty and bluntness. He listened to my concerns, and offered realistic solutions and advice. I know my body and some of what works for me (and what probably doesn’t). I know I don’t always make the best choices with my diet. But he never judged me for that. He was professional and helpful during our conversation—so much so, that it felt like I was talking to a friend or coworker. I highly recommend him as a dietitian.
August 20, 2025William C.Verified patient
My appointment with Isaac was great! He asked me so many questions and he could
Identify the mistakes was doing in my diet. He answered all my questions and elaborated a very good plan for me to loose weight. I can’t wait for next visit. Thanks.
SFVerified patient
Dr. Isaac was very friendly and took the time to listen to my concerns and needs. I learned a lot from him and about myself during the appointment and I appreciated his grace-based approach to nutrition, health and fitness.
August 11, 2025Katlyn S.Verified patient
Good listener and knowledgeable
JFVerified patient
Issac is great to talk with. He is easy going and can relate.
He took the time to address all of my questions. I especially liked thathe took notes so that he didn't miss any points in my multiple part questions.
ADVerified patient
Isaac is a great clinician. Personable and understanding, his approach to diets is small meaningful changes to better for choices. He takes into account his clients' living situation and conditions to tailor the best approach to reach attainable goals and remembers the little details over sessions making his bedside manner more akin to a foodie friend than a doctor treating yet another patient.
JBVerified patient
I really liked working with Isaac! It was really helpful to have an audit of my eating habits, and I learned a lot over the course of my visits!
GLVerified patient
Issac was very professional and listened to my wants and needs. Which in turn, helped us make actionable goals to strive for. He further provided me with useful resources that helped me track my diet so I could stay consistent and have a record to refer back to!
CCVerified patient
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JRVerified patient
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