Margarita Sierra, RD, NY | Dietitian

About Margarita Sierra

Mia Sierra, MBA, RD, is a bilingual Registered Dietitian who helps people feel better through simple, personalized nutrition. Her goal is to make healthy eating approachable, practical, and tailored to your unique lifestyle, culture, and health goals. Mia offers care that is respectful, supportive, and grounded in science—whether you're managing a health condition, working toward a wellness goal, or simply trying to eat better without feeling overwhelmed. Fluent in English and Spanish, she creates a welcoming environment for individuals and families from diverse backgrounds. Mia believes nutrition should work for you—not the other way around. Her approach is gentle, personalized, and realistic. Rather than giving one-size-fits-all advice, she listens to your story, understands your needs, and works with you to create a plan that fits your life—not someone else’s idea of it. Whether you’re looking to manage a condition, feel more energized, or improve your relationship with food, Mia employs a supportive and non-judgmental approach that encourages small, meaningful changes. She blends science with compassion, always respecting cultural food traditions and personal preferences. Your first visit is an opportunity to share your health story and discuss what matters most to you. Mia will take the time to understand your eating habits, medical history, lifestyle, and goals—whether that’s lowering blood sugar, reducing inflammation, improving digestion, or simply feeling better day-to-day. You’ll leave with practical next steps and a care plan that’s doable, flexible, and tailored just for you. The session lasts approximately one hour and can be conducted virtually or in person.

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In-network insurances

Aetna

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Popular visit reasons

Anti-Inflammatory Diet

Digestive Problem

New Patient Visit

Nutrition Issues

Obesity / Weight Loss Consultation

Obesity Nutrition Consultation

Weight Loss Consultation

Weight Management

Anti-Inflammatory Diet

Digestive Problem

New Patient Visit

Nutrition Issues

Education and background

Practice names

Berry Street

Board certifications

Commission on Dietetic Registration

Languages spoken

English
Spanish

Provider's gender

Female

NPI number

1700077955

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Frequently asked questions

How soon can I make an appointment with Margarita Sierra?

Generally, Margarita Sierra has appointments available on Zocdoc within 1 week. You can see Margarita Sierra's earliest availability on Zocdoc and make an appointment online.

Is Margarita Sierra accepting new patients?

Margarita Sierra generally accepts new patients on Zocdoc. You can see Margarita Sierra's earliest availability on Zocdoc and schedule an appointment online.

Does Margarita Sierra accept my insurance?

Choose your insurance plan to verify if Margarita Sierra is in-network.

Can I make an appointment with Margarita Sierra online?

Yes, you can make an appointment online with Margarita Sierra using Zocdoc. It’s simple, secure, and free.

What practice does Margarita Sierra work with?

Margarita Sierra works with Berry Street.

Which board certifications does Margarita Sierra have?

Margarita Sierra is certified by Commission on Dietetic Registration.

What are common reasons for patients to see Margarita Sierra?

Margarita Sierra frequently sees patients for Digestive Problem, New Patient Visit, Obesity / Weight Loss Consultation, Weight Loss Consultation, and Weight Management. You can see other visit reasons for Margarita Sierra on their profile.