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

Alessa Sook Crossan, MD

Individual provider Ophthalmology Physician · NPI 1477848034

Alessa Sook Crossan, MD is an Ophthalmology in Warrenton, Virginia. Graduated from Albert Einstein College of Medicine of Yeshiva University in 2011, 15 years ago. Practices with Dulles Eye Associates, PC, a 21-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in District of Columbia, Virginia and Wisconsin.

Years since qualifying
15
Trained at
Albert Einstein College of Medicine of Yeshiva University
Licensed in
DC, VA, WI
In the registry since
2011
Specialties on file
3
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

45 N Hill Dr Ste 202
Warrenton, VA 20186-2677
Phone: (540) 349-1882
Show map & directions

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

Additional practice locations (1)

  • 21475 Ridgetop Circle Suite 300, Sterling, VA 20166-8580 — (703) 430-4400

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence 0101262608 (VA)
Ophthalmology Physician Taxonomy 207W00000X · Licence 63863 (WI)
Retina Specialist (Ophthalmology) Physician Taxonomy 207WX0107X · Licence MD045246 (DC)

Record details

NPI number1477848034
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 12, 2011
Last updated in NPPESApril 11, 2025
Certification dateApril 11, 2025

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolALBERT EINSTEIN COLLEGE OF MEDICINE OF YESHIVA UNIVERSITY
Graduated 2011 (15 years in practice)
Group practice Dulles Eye Associates, P.C. — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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