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

Dr. William Lenox Pfaff III, MD

Individual provider Orthopaedic Surgery Physician · NPI 1346415411

Dr. William Lenox Pfaff III, MD is an Orthopedic Surgery in Rehoboth Beach, Delaware. Graduated from Jefferson Medical College of Thomas Jefferson University in 2003, 23 years ago. Accepts Medicare assignment. Licensed in Delaware and Pennsylvania.

Years since qualifying
23
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
DE, PA
In the registry since
2008
Specialties on file
3
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

18947 John J Williams Hwy Medical Arts Bldg Unit 311
Rehoboth Beach, DE 19971-4477
Phone: (302) 231-4333
Fax: (302) 231-4414
Show map & directions

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

Specialties & licences

Orthopaedic Surgery of the Spine Physician (primary) Taxonomy 207XS0117X · Licence C10008913 (DE)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence MD429103 (PA)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence C10008913 (DE)

Record details

NPI number1346415411
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 29, 2008
Last updated in NPPESJune 14, 2023
Certification dateJune 14, 2023

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 2003 (23 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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