DOUGLAS DREFFER, M.D.
Direct Primary Care
Comprehensive care for acute illnesses, preventive health, and chronic disease management for the entire family.
Credentials & Training
Federally verified- Credential
- MD
- Medical school
- Ohio State University College of Medicine
- Graduated
- 1997
- Medicare specialty
- Family Practice
- Group practice
- Derry Medical Center, PA · 98 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked September 2026.
About
Douglas Dreffer, M.D. provides family medicine services in Derry, New Hampshire. The practice operates on a direct-pay model.
Family medicine covers preventive care and chronic disease management across all ages. This specialty addresses acute illnesses, routine physicals, and long-term conditions such as hypertension, diabetes, and asthma.
Care is provided through a direct-pay model, meaning patients pay for services directly rather than through traditional insurance billing.
Areas of Focus
Conditions Treated
Specialties
Patients Served
Frequently Asked Questions
What types of care does a family medicine physician provide?
Family medicine covers preventive care and chronic disease management across all ages, addressing acute illnesses and long-term conditions.
Does this practice accept insurance?
The practice operates on a direct-pay model.
What age groups are treated by this specialty?
Family medicine covers patients of all ages.
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