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Gilberto Sustache, Jr. MD

Family Medicine

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MDVIP Annual Membership Fee
MDVIP’s annual fee covers the Wellness Program and generally can be made in quarterly, semi-annual and annual payments.
Quarterly
$587.50*
Semi-Annual
$1,175.00*
Annual
$2,350.00*
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About Gilberto Sustache, Jr. MD

Welcome to Sustache Primary Care in Marlborough, MA, where my focus is on your wellness. I offer a more individualized approach to healthcare with the MDVIP model. My aim is to put your health first while encouraging balance and self-care. With over 20 years in primary care, I can focus my education, experience and enthusiasm on you.  

My MDVIP-affiliated practice offers services, including comprehensive, advanced health screenings and diagnostic tests, that go far beyond those found in concierge medicine practices. My practice size is smaller, which means I can offer conveniences like same- or next-day appointments with minimal waiting. It also means I have more time to spend with each patient to discuss primary care issues big and small.

If I’m privileged enough to meet you, I hope you’ll see that I love people. I am happily married for over 27 years and have three amazing kids. I love detailing cars for fun, and I am fluent in Spanish.

I hope you’ll feel encouraged to come and find out what my practice is all about. I appreciate you taking the time to look me up.
 

Residency

Memorial Hermann Southwest Hospital
Houston, TX
Family Medicine 2002-2004

Internship

Memorial Hermann Southwest Hospital
Houston, TX
2001-2002

Medical School

University of Massachusetts Medical School
Worcester, MA
Doctorate of Medicine 2001

Undergraduate

Brown University
Providence, RI
Bachelor of Arts, Biology 1996

American Board of Family Medicine

English and Spanish

Massachusetts
Texas

Time with family, running, fitness and car detailing 

Benefits of joining Dr. Sustache's practice with MDVIP

MDVIP Wellness Program
Expect comprehensive screenings and tests and a custom wellness plan designed for you.
Better Doctor-Patient Relationship
97% of MDVIP members are satisfied with their relationship (vs 58% in traditional PCP).
Same/Next-Day Appointments
See Dr. Sustache quickly and take your time during each appointment.
Reachable 24/7
Reach Dr. Sustache by phone after-hours and on weekends.
Smaller Practice Size
MDVIP practices are smaller than most primary care practices, which means your doctor has more time to help you.
Your Dedicated Doctor
See Dr. Sustache when you go to the office — not someone else like a nurse practitioner or physician assistant
Travel Benefits
If you need urgent care while traveling, your physician can help arrange your care with a local hospital, pharmacy or doctor.
Medical Centers of Excellence
For patients who need care beyond what is available locally, MDVIP can connect your doctor with specialists at some of the country’s leading medical institutions
Better Health Outcomes
Members have better control of chronic conditions like type 2 diabetes, high cholesterol and hypertension.
Remote video URL
Remote video URL

The office of Gilberto Sustache, Jr. MD

Primary Office
65 Boston Post Road West Suite 100
Marlborough, MA 01752
Get Directions
Hours
Mon 8:00 AM - 5:00 PM
Tue 8:00 AM - 5:00 PM
Wed 8:00 AM - 5:00 PM
Thu 8:00 AM - 5:00 PM
Fri 8:00 AM - 5:00 PM
Sat Closed
Sun Closed

Reviews from the web

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11/19/2025 Doc Eliot
The good doctor has absolutely INCREDIBLE level of care, compassion, attention to detail, and commitment to his patients' well-being. The amount of time he devotes to each and everyone is so, so rare in today's medical world. A true unicorn. And all backed by an Ivy League education no less!
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11/19/2025 Will Duran
I don’t usually open up about personal health stuff or write reviews, but after what Dr. Gil Sustache has done for our family I want others to know what his care looks like. More people should have access to a doctor who’s this available and genuinely invested.

Early one weekend morning our daughter became very sick. My wife called Dr. Gil and he answered immediately. During that call her condition quickly pivoted from a situation where my wife and I were going to drive her to a nearby emergency department — to needing an ambulance. Dr. Gil calmly walked us through calling EMS, told us exactly what to communicate to the EMTs, and explained what to expect at the ED. As a father I felt overwhelmed and powerless. Dr. Gil proactively checked in by phone and text and stayed reachable while we were at the hospital, which kept us from allowing our fear to consume us during that very long day. His clear, practical guidance made a huge difference and I was deeply grateful to have direct access to him in that moment.

Beyond that emergency, Dr. Gil has changed how I think about health care as a man. I grew up believing men should “tough it out,” and asking for help felt like weakness — a mindset reinforced by past experiences with other providers who were dismissive, rushed, or minimized my symptoms. Dr. Gil created a nonjudgmental space where I can be honest about my health concerns without shame. He listens, explains options in plain language, and involves you in decisions — which has made me see seeking care as responsible, not weak. He also takes a whole-body approach, addressing both physical symptoms and mental/emotional well‑being, and considers how stress, mood, and lifestyle affect overall health when tailoring care.

If you’re a man who’s been hesitant to seek care because of stigma or pride, Dr. Gil will put you at ease. His combination of calm leadership in emergencies, everyday compassion, and proactive advocacy is rare — and it’s why I trust him and recommend him to other families.

Appointments are scheduled so you’re walked right in with no wait — I’ve never even seen another person in the office at the same time. They take confidentiality seriously, handling conversations and records discreetly so appointments feel private and respectful. I hope his practice continues to grow — not only because Dr. Gil is an exceptional person and clinician, but so that more men raised with the “tough it out” mindset can experience what men’s healthcare should be: respectful, private, and proactive.
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11/19/2025 Mona Sheshtawy
Dr Sustache is detail oriented, experienced and has a great bed side manner. He took the time to listen to my ailments without interruption and followed up with the right questions. I felt heard and this type of doctoring produces good results and trust. I would highly recommend having him as your primary care doctor because he ticks all the boxes.
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11/19/2025 Erika Duran
Dr. Gil Sustache is an exceptional physician — attentive, thorough, and genuinely caring. From the moment you meet him he makes you feel respected and heard; he never rushes appointments and takes the time to explain things clearly and patiently. I always leave visits confident that my concerns were fully understood and addressed.

He is a fierce advocate for his patients — fighting with insurance companies to secure needed testing and personally calling outside providers to coordinate care and advocate for the best overall outcome. His attention to detail and commitment to getting accurate answers is unmatched, and his passion for patient care is reflected in the way he runs his practice.

Access to Dr. Sustache is outstanding. He provides direct lines of communication — phone, text, and email — so medical questions and concerns can be handled efficiently. He never dismisses questions or makes you feel foolish; patients are treated like family. As an added bonus, he has a warm sense of humor that helps put you at ease.

He truly goes above and beyond — even consulting with close relatives who may be visiting for the holidays or vacation (not his patients), taking the time to offer practical advice and help coordinate next steps when needed. That willingness to help in informal situations speaks volumes about his character.

His wife also works at the practice and is incredibly kind and helpful, which adds to the welcoming, well-organized atmosphere. I highly recommend Dr. Gil Sustache to anyone seeking a compassionate, ethical, and skilled doctor who truly advocates for his patients.
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10/29/2025 Blue “Blue Buick 41” Buick 41
Dr Sustache is top notch! I signed on to his concierge medical plan (MDVIP) and could not be happier. He takes the time to learn about you as a patient and orders the correct tests to address your medical concerns. He reviews the results in detail and makes recommendations as to how to improve results that are at or above the specification limits. He has voice called me on a Sunday and called in a scrip to a pharmacy in Maine where were were vacationing! If you are looking for a concierge Dr. you will not find a more compassionate and dedicated individual!
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10/07/2025 Nelci Junior
Great Doctor! A friend, care for your health! Help me a lot in the moment I really need to have someone to listen to me! Thank you Dr Gilberto! God bless you 🙏
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10/07/2025 Chris Mulcahy
Wonderful doctor, he really takes the time to get you know you. Highly recommend!
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08/13/2025 Margaret Nguyen
A kind and caring provider who treats patients, colleagues, and staff with respect and love. He is a man of the community and you would be lucky to call him your PCP.
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07/10/2025 Brendan Melican
Gil is the absolute best primary care physician I've had the pleasure of seeing. It's easy to have high expectations of your practitioners, it's another for your practitioners to have high expectations of their patients. Gil is the first practitioner I've had whose expectations for his patients fitness and nutrition, were on par with my own personal goals.
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06/30/2025 John Paquette
Feeling very blessed to have found this Dr.
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02/08/2025 Dwayne Gibson
Dr Sustache is one of the best family physicians that I’ve encountered over the many years on this earth. He has always been very attentive and caring to all his clients’ needs. There have been instances where I needed immediate personal care and the Dr went out of his way to ensure that I was well taken care of. I trust this young man with all of my medical care because I know that he is treating the entire man instead of only the symptoms. If you are looking for a Dr in the area, look no further, he is the one!
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02/03/2025 Ana Curbelo
El mejor Doctor que he tenido siempre bien atento y se pone en la posición del paciente muy bueno
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02/02/2025 Nader Alexander
Dr Sustache is a rare breed of doctor, the kind that will spend the time to understand your ailments. He is caring, professional and extremely knowledgeable about the different medical issues which we face. I am so happy to have had him as my doctor for so many years. He helped identify and resolve vitamin deficiency, joint issues and fluid retention sack on my ankle. I would feel confident going to Dr Sustache about any medical issue I had.
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01/14/2025 Michelle Mota-Poyser
Dr. Sustache thank you! Excellent, professional, attentive and kind are just a few words that follow after our visit. Thank you for taking the time to understand my concerns, and providing a safe space for me to be treated and heard. I appreciate you.

Now in Spanish: “Excelente, profesional, atento y amable son pocas de la muchas palabras en las que pienso tras nuestra visita. Gracias por tomarse su tiempo para comprender mis inquietudes y por proveerme tu atención. Te lo agradezco!
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01/09/2025 Rob C
Dr Gill is an exceptional doctor—attentive, knowledgeable, and genuinely caring. He always takes the time to listen and explain things clearly, making us feel comfortable and well-cared for. He’s solved a lingering issue for me. I trust him completely with my health.”
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06/28/2024 becky geragonis
We have had one visit and I have already recommended Dr. Sustache to friends and family . One visit but he has answered so many followup questions promptly and compassionately. We have been dealing with some serious health issues with a family member that has lead us to so many dead ends . Dr . Sustache has been instrumental in helping to get the right care . I truly believe he cares about his patients .
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12/18/2023 Michael Cunningham
I just want to say This doctor is the absolute best he went to bat for me. I had many issues, and I felt like I was in good care. Thank you.

Frequently Asked Questions

Doctors who operate in the MDVIP models typically see far fewer patients than traditional primary care doctors. That gives them more time to develop deeper doctor-patient relationships that can lead to better outcomes. They can also offer conveniences that most primary care doctors can’t, including same- and next-day appointments. They’re available after hours for urgent matters. And they have time to focus on prevention. That focus begins with the MDVIP Wellness Program, which patients pay for with their annual membership fee.

Most MDVIP-affiliated primary care practices accept insurance (your physician can tell you whether they accept your specific insurance plan). Your annual fee pays for preventive care medical services that insurance usually doesn’t cover (e.g., advanced diagnostic testing and screenings). Your MDVIP-affiliated physician will continue to bill your insurance and charge copays, co-insurances and deductibles as he or she currently does for other medical services like sick visits.

MDVIP makes wellness and prevention easier by providing your physician with innovative tools and technology. MDVIP supports your physician’s practice and seeks to eliminate barriers to a positive healthcare experience. Your doctor will determine whether and how to incorporate these tools at his/her discretion.

**The message above is a personal introduction from the physician, intended to help you get to know them better. The views, opinions, and statements expressed above are solely those of the physician and do not necessarily reflect the views or positions of MDVIP. This content is intended for general background purposes only and does not constitute medical advice, diagnosis, or treatment. Any mentions of expertise or quality of care are personal expressions and should not be interpreted as guarantees of performance or outcomes.