Find our Location

714 Main Street (Rte. 6A)
Yarmouth Port, MA 02675

Patient Education

Our practice releases great health educational tips just for you

Patient Portal

Get quick and easy access to your Health Care patient portal.


monitoring of blood pressure, immunization updates, risk factor screening for coronary artery disease & more


Same day visits are available for patients who are ill and need to see a provider.


We offer routine gynecological well women visits as part of  our comprehensive primary care practice.

Welcome to

Cape Cod Primary Care Yarmouthport - Susan V Duenas NP, Jeffrey Martens MD, Ted Herwig MD, Pamela Hoppe NP and Lisa Grubbs NP

We know that you have choices about where to receive health care. We thank you for selecting our practice.

We are dedicated to providing quality health care in a changing environment. We would like to help you stay informed about your own health and wellness and have increased access to information that is for and about you. This website has been developed with you in mind.

We function as a primary care team. The team is comprised of physicians, nurse-practitioners, nurses, certified medical assistants and administrative staff. Each person plays an important role in the delivery of primary care to patients in our practice in Yarmouthport. We have been delivering primary care to residents in our community since our incorporation in 1994. We live and work in this area and strive to make it a place of excellence.

Patient Information
We accept primary care patients in our office in Yarmouthport office that are 14 years of age and older. Our patients may see either a physician or nurse practitioner as their own primary care provider.

We participate in most major insurance plans that are accepted in our local community. Co-Payment, non-covered services and deductibles must be paid at the time the service is delivered. We work with a billing service called SVS Services. They work very closely with our patients to answer billing questions and process claims accurately and efficiently. They can be reached at 800-787-1596.

Need to see a Provider?




Provided by:  Massachusetts Emergency Management Agency

At a minimum your kit should include:

  • Bottled water (one gallon per person/per day for at least three days)

  • Food: at least a three-day supply of non-perishable foods that do not need cooking (ready-to-eat canned meats, fruits, vegetables, or juices, protein or granola bars, cereal, peanut butter, dried fruit, nuts, crackers, baby food, comfort foods)
    Read More

Stay Safe and Healthy This Summer

The temperatures are rising and the days are getting longer. It′s summertime once again. Here are some tips to help make your summer the best, and healthiest, one yet.

Read More

Nutrition and Healthy Eating

Water is essential to good health, yet needs vary by individual. These guidelines can help ensure you drink enough fluids.

By Mayo Clinic Staff

How much water should you drink each day? It's a simple question with no easy answers. 
Read More