Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Allister R. Williams, MD

Individual provider Orthopaedic Surgery Physician · NPI 1639258205

Mr. Allister R. Williams, MD is an Orthopedic Surgery in East Stroudsburg, Pennsylvania. Graduated from College of Medicine and Surgery in 2002, 24 years ago. Practices with Mountain Valley Orthopedics PC, a 20-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Pennsylvania and South Carolina.

Years since qualifying
24
Trained at
College of Medicine and Surgery
Licensed in
PA, SC
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

600 Plaza Ct Ste C
East Stroudsburg, PA 18301-8263
Phone: (570) 421-7020
Fax: (570) 421-7091
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 120 Burrus Blvd Ste 120, Brodheadsville, PA 18322-7812 — (570) 421-7020
  • 100 Wheatfield Dr Ste 2, Milford, PA 18337-7699 — (570) 421-7020
  • 100 Community Dr Ste 210, Tobyhanna, PA 18466-8987 — (570) 421-7020

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence MD433510 (PA)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence LL24193 (SC)

Record details

NPI number1639258205
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 3, 2006
Last updated in NPPESOctober 14, 2025
Certification dateOctober 14, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolCOLLEGE OF MEDICINE AND SURGERY
Graduated 2002 (24 years in practice)
Group practice Mountain Valley Orthopedics Pc — 20 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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