> > > > Dr. William Pachas, MD
Dr. William Pachas MD is a male Internist, has 50 years of experience and practices in Internal Medicine and Rheumatology.
Dr. William Pachas has 1 office location.
Winchester Town Center
Charles River Eye Assoc.
955 Main St
Ste 307
Winchester, MA 01890

Phone Number
Locations and availability (1)
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).


Our records indicate this doctor is retired.

Learn more about Dr. William Pachas:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

  • Currently 3 of 4 stars
Patient comments (3)

The overall average patient rating of Dr. William Pachas is Good. Dr. Pachas has been reviewed by 5 patients who have provided 3 comments. The rating is 3 out of 4 stars.

Patient Ratings
Ease of Appointment 3.3
  • Currently 3.25 of 4 stars
Promptness 3.3
  • Currently 3.25 of 4 stars
Courteous Staff 3.5
  • Currently 3.5 of 4 stars
Accurate Diagnosis 3.5
  • Currently 3.5 of 4 stars
Bedside Manner 3.3
  • Currently 3.25 of 4 stars
Spends Time with Me 3.3
  • Currently 3.25 of 4 stars
Follows Up After Visit 3.3
  • Currently 3.25 of 4 stars

Specialties & Research

Dr. William Pachas, MD is board certified in Internal Medicine.

  • He has special expertise in 3 areas:
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Osteoarthritis (Hand and Wrist)

Education & Awards

Dr. Pachas graduated from Universidad Nacional Mayor De San Marcos, Lima.


Dr. Pachas has 6 hospital affiliations:

  • Massachusetts General Hospital 
  • Marlborough Hospital 

Accepted Insurance Plans

Dr. Pachas accepts these health insurances in at least one office:

  • United Healthcare - 3 plans
  • Blue Cross Blue Shield of Massachusetts - 9 plans
  • Cigna - 1 plan
  • Fallon Community Health Plan (FCHP) - 5 plans
  • Aetna - 3 plans


  • Spanish

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Additional Information
Where does Dr. William Pachas practice?
Dr. William Pachas practices Internal Medicine and Rheumatology near Winchester, MA.
See Winchester Internists and Winchester Rheumatologists.