Genera Personal Primary Care

Genera Health Direct


Healthcare should be a convenient and relationship-centered experience. Dr. Margarita Castro-Zarraga and her team believe in taking their time with each patient, taking a comprehensive approach to your health, and practicing medicine the old-fashioned way. 

Healthcare should also be simple and transparent. For a flat monthly fee starting at $80 a month, you get convenient access to care - in-person, over the phone, or via text. No need to worry about co-pays or deductibles. We even offer transparent, affordable, direct-pay pricing for lab procedures and imaging services through local area laboratories and imaging centers.

We're accepting new patients! 

Margarita Castro-Zarraga, M.D.


Dr. Margarita Zarraga is the Founder and Medical Director at Genera Personal Primary Care, one of the pioneer direct primary care practices committed to delivering high quality relationship - based care to communities in Massachusetts.


Dr. Margarita specializes in family medicine, substance abuse treatment, care of vulnerable populations, geriatrics and global health.

She graduated with a degree in Medicine from the University of the Philippines College of Medicine. She took her residency in Family Medicine at The Brooklyn Hospital Center in New York city.

Committed to care more than ever, she began her journey into private practice exploring new care models until she opened Genera Health Direct with spouse David Zarraga, and co-founders Monette Espinosa- Zialcita and Francis Miranda.


Together, this group shares Dr. Margarita’s love and fulfillment for every emergency room admission prevented, for every early diabetes diagnosed, and for every soul soothed out of addiction and depression. Dr. Margarita is leading a team committed to the kind of care that she always practiced, but this time she intends to scale and spread the good news: the new standard of healthcare is Personal Primary Care starting with Genera. 


  • Clinical Fellowship in Cardiac Surgery, Brigham and Womens Hospital

  • Residency in Family Medicine, The Brooklyn Hospital Center

  • Degree in Medicine, University of the Philippines College of Medicine

Ready to learn more? Book a FREE 15-minute assessment at your preferred location.


How We Can Help You

Flu Shots

General Health

Prevention & Wellness

Physical Exams

Home Visits

Family Planning

Blood Work

Functional Medicine

Our Plans: It's as easy as 3-6-12

Select a plan that works for your needs. It's just like a gym membership - after you sign up, we charge your credit card or bank account on a monthly basis. You can cancel your membership at any time.



Up to 3 visits a year, plus your annual physical and sick visits. Each visit can be up to an hour, with flexible appointment scheduling and access to your provider via phone or text.


Up to 6 visits a year, plus your annual physical and sick visits. Each visit can be up to an hour, with flexible appointment scheduling and access to your provider via phone or text.


Up to 12 visits a year, plus your annual physical. Each visit can be up to an hour, with flexible appointment scheduling and access to your provider via phone or text.


Need to visit a doctor, and your regular primary care physician isn't available? Episodic visits are priced on a per-visit basis and are focused on addressing your immediate concerns.


We offer tier-based monthly pricing per employee for businesses of all sizes. Interested? Please reach out to us at or call us at 801-210-0460.

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Learn about your health care options & how direct primary care can work for you.

About Direct Primary Care

The provider-patient relationship, simplified.

Learn more about the advantages of Direct Primary Care from our friends at Click "Play" on the video player below.


Our Customer Reviews

Read what our patients are saying about Dr. Marga here.

5 stars

"Dr. Margarita Castro-Zarraga is easily one of the best doctors I’ve had experience with. She legitimately cares about all her patients. And she’s very thorough with listening to what you’re feeling. I have literally zero complaints or negative things to say about her."

Virginia Gardenhire
Recovery Specialist 
Serenity House

5 stars

I lost 3 lbs. I have more energy. I am able to accomplish more through Dr. Marga's guidance, i.e. mind healing affirmations, gratitude affirmations, mindful weight reduction. I am more focused. I am exercising twice a day, and eating healthier.  She assists me in making my everyday a good day. She's my "cheerleader". My family can see the difference. I have a more positive attitude and less anxiety. I can see the beginnings of me more engaged and more  appreciative of the events occurring in my everyday life.


Julie Heslin

Retired RN

Treasurer, BICP

5 stars

Dr. Marga, thank you for the depth of your caring and healing practice. My health and wellness have greatly benefited from your diagnostic capacities and effective guidance. In addition to providing conventional medical care, you have enabled  me to move toward fuller wellness. 


I appreciate your online group discussions. They are wise and  illuminating  “master classes” in healthy living, helping me to focus and deepen my awareness. 


Lee Mondshein

Assoc. Prof. of Mathematics (ret.) 


5 stars

Thank you for providing "Wellness Wednesday" for focus towards health during this pandemic crisis. It was easily accessible via my IPhone and extremely valuable to me. As a healthcare professional, I was unsure if I’d learn anything new or applicable.  Indeed, I did!  The meditation / creative visualization was phenomenal and brought me to a place of peace and gratitude. That along with helpful tips and reminders was wonderfully delivered. Your dedication to community health and well-being is evident. I’m so grateful I can take part in this generous offering.  Many blessings to you!!!


Kathy Armany, RN

Wholistic Wellness Professional


5 stars

Often times, adults believe they know everything and are satisfied with themselves. Changes and new information are met with great hesitation. My curiosity got the better of me when I attended an introductory course of Dr. Marga. I found her to be confident, attentive, gentle and very positive in her manner of teaching. She quickly caught the areas I had to “Review, Rework and Rewire” in my life. She explains things clearly in a medical, wholistic, and spiritual point of view, which I truly appreciate. No matter how old we are , we can always ‘begin again’. My family, as well as my grandchildren, are benefiting from the positive changes in me. Making this effort brings great rewards! -


Marga Tolentino

Businesswoman and Interior Designer


5 stars

I highly recommend you carve out 30 minutes to join Dr. Marga at 5pm every Wednesday! Her approach to health and wellness is so unique. I joined last week and she helped me transform my mental state after a tough couple days. To get the body right, we gotta get the head right!


Paul Romeo

Fitness Expert, Koko FitClub Needham & Sudbury


5 stars

If you haven't had a chance to learn about Dr. Zarraga's incredible medical background and keen ability to share  her insights for wellness and apply them to everyday life... I sincerely hope that you''ll be able to join in on Wednesday's at 5PM as they are practical, fruitful, and enjoyable sessions.


Allison Skunda

Education Consultant


5 stars

Most doctors are caring people. Most doctors are too busy to let you know that they care. When Dr. Zarraga is caring for you, you KNOW that she CARES. When you leave her presence, you not only feel better, but you feel better about life. It can make all the difference in the world. I would trust her not only with my own life, but those of my loved ones.


Paul Letendre

TV Host, Southcoast Matters


5 stars

Dr. Zarraga's Genera Health Direct patient pay primary care plan offers the communication efficiencies and easy physician access of online care, telephone/video consultations, and secure text messages combined with the option to make real world in person appointments. It’s the best of all worlds. Dr Zarraga has a natural gift of empathy . In short I think she is awesome.


Mark Rheault, a week ago


5 stars

I’ve spent my whole lifetime seeking medical treatment that covers all aspects of my well-being. Battling a bi-polar disorder and weight loss issues have been the pillars of my story. I couldn’t see a different future when my past kept reminding me of my unbreakable flaws. Developing a roadmap with her, for my future, has increased my Faith on the changes I never thought I could make! Dr. Castro has been a beacon of hope! It’s like a therapy appointment tied in with a check-up. You know she genuinely cares for you as a person, for you as a spirit... Her expertise is invaluable, while other Doctors are overpriced. Dr. Castro’s natural ability to listen creates transparency & a wholesome, trusting environment. I would highly recommend her services to Any and All in need of Direct Primary Care.


Shemelia Dinkins, 4 months ago


5 stars

I have been a patient of Dr Castro-Zarraga since August 2019 at Plymouth office. She is a very knowledgeable and compassionate MD, she will listen to your concerns, and not rush office visits. I highly recommend Genera Health Direct.


Ginny Tomasello, 2 months ago


5 stars

Dr. Marga helped me overcome a very frustrating time of my marriage. I felt lost and doubting myself but she helped me regain my confidence. And guide me how react to a situation that could have gone wrong. Helped me to find my center and peace of mind. I’m very thankful I was talking to her.

Kristine Miranda, 3 months ago

Interior Designer

New York

5 stars

I have been a patient here for over a year, and my experience with Marga Zarraga has been the best that I have ever had. She truly cares for her patients and strives to put them on the right path for success in getting healthy. Finding the right doctor can be hard and challenging, but trust me when I say she is the best. If you want a doctor who will take their time to get to know you in order to help you get better then call Marga Zarraga.


Rue Barak, 4 months ago


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105 Chestnut Street, Suite 35, Needham MA 02492


Use the ground floor elevator or stairs to 3rd floor. From elevator, turn left (turn right from stairs).

Operating Hours:

Mondays: 3pm to 8pm

Wednesdays: 3pm to 8pm

Fridays: 9am to 10:30am

Saturdays: 9am to 5pm

© 2019-Present by Genera Health Direct. Proudly created with

Contact us at 801-210-0460 or at

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