Williamsburg Internal Medicine

As a busy medical office in a small town, Williamsburg Internal Medicine has the privilege of being a well-balanced practice, with a staff that’s just the right size for the demands of its community. Our compassionate, down-to-earth providers are dedicated to helping keep you healthy, and their personalized care is exactly what you should expect from a small town practice that shares every day with its patients.

We can also help if you need specialized care that’s out of town. Our membership in the Cooley Dickinson Medical Group gives us valuable access to Northampton’s hospital, and allows us to provide seamless referrals within our wide network of medical specialists, physical therapists, visiting nurses and other professionals. Our full-time staff includes:

In addition, we employ six other full-time staff for maximum office efficiency, and offer you the following conveniences:

  • Same-day walk-in appointments usually available in the a.m.
  • Prescriptions from any of our three providers
  • On-site lab draws for all of our primary care patients


Please review this important billing information prior to your visit:

Preventative Health Exam Billing Information

Personalized Care

We pride ourselves on having cultivated a small-town feel that lets you know our care is personal and that we share the same values as you when it comes to empathetic human connection and personalized treatment. We know every patient’s name, and all of our current providers live in the community where they work and care about everyone who’s a part of it. The practice was formerly known as Williamsburg Medical Associates.

Housed in a converted colonial home on Williams Street (Route 9) between the Meekins Library and Chesterfield Road, Williamsburg Internal Medicine is centrally located to serve patients in Hampshire County. Our downtown location at 14 Williams Street (Route 9) is 13 minutes from Cooley Dickinson Hospital in Northampton and less than a mile from the local pharmacy.

We are accepting new patients. Office hours are 8:30 a.m.-5:00 p.m. on weekdays, with same-day walk-in appointments usually available first thing in the morning. We are closed on weekends.

Hanno Muellner, MD, with nurse practitioners Sarah Fletcher and Joanna Pheasant at Williamsburg Internal Medicine, 14 Williams Street, Williamsburg, MA 01096.

Williamsburg Internal Medicine

CONTACT 413-268-3616


Location & Directions 14 Williams Street
Williamsburg, MA 01096
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Mailing Address:
Williamsburg Internal Medicine
P.O. Box 765
Williamsburg, MA 01096