Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. William F Deegan III, MD

Individual provider Ophthalmology Physician · NPI 1982678223

Dr. William F Deegan III, MD is an Ophthalmology in Mc Lean, Virginia. Graduated from Tufts University School of Medicine in 1988, 38 years ago. Works from 2 locations and accepts Medicare assignment. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
38
Trained at
Tufts University School of Medicine
Licensed in
DC, MD, VA
In the registry since
2006
Specialties on file
6
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1420 Beverly Rd Ste 110
Mc Lean, VA 22101-3700
Phone: (571) 378-2236
Fax: (571) 378-2237
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 46161 Westlake Dr Ste 300, Sterling, VA 20165-5871 — (571) 434-2927

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 0101052712 (VA)
Ophthalmology Physician Taxonomy 207W00000X · Licence D0047789 (MD)
Ophthalmology Physician Taxonomy 207W00000X · Licence MD21418 (DC)
Retina Specialist (Ophthalmology) Physician Taxonomy 207WX0107X · Licence D0047789 (MD)
Retina Specialist (Ophthalmology) Physician Taxonomy 207WX0107X · Licence MD21418 (DC)
Retina Specialist (Ophthalmology) Physician Taxonomy 207WX0107X · Licence 0101052712 (VA)

Record details

NPI number1982678223
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 14, 2006
Last updated in NPPESApril 27, 2021
Certification dateApril 27, 2021

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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