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

Zachary T Hollis, MD

Individual provider Internal Medicine Physician · NPI 1104142744

Zachary T Hollis, MD is a Cardiac Electrophysiology in Fairfax, Virginia. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2010, 16 years ago. Practices with Inova Health Care Services, a 1,827-clinician group, works from 12 locations and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
16
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
VA
In the registry since
2010
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

8081 Innovation Park Dr Ste 602
Fairfax, VA 22031-4867
Phone: (571) 472-3270
Fax: (571) 472-3271
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (11)

  • 4320 Seminary Rd, Alexandria, VA 22304-1535 — (703) 504-3000
  • 21785 Filigree Ct Ste 203, Ashburn, VA 20147-6214 — (571) 472-3270
  • 3025 Hamaker Ct Ste 101, Fairfax, VA 22031-2229 — (571) 472-3270
  • 3300 Gallows Rd, Falls Church, VA 22042-3307 — (703) 776-4001
  • 351 Valley Health Way # 200, Front Royal, VA 22630-6480 — (540) 636-0600
  • 224d Cornwall St Nw Ste 306, Leesburg, VA 20176-2704 — (571) 472-3270
  • 44045 Riverside Pkwy, Leesburg, VA 20176-5101 — (703) 858-6000
  • 44084 Riverside Pkwy, Leesburg, VA 20176-8279 — (571) 472-3270
  • 104 Selma Dr, Winchester, VA 22601-3834 — (540) 678-2800
  • 190 Campus Blvd Ste 201, Winchester, VA 22601 — (540) 662-0306
  • 190 Campus Blvd Ste 201, Winchester, VA 22601 — (540) 662-0306

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence 0101265236 (VA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0101265236 (VA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 0101265236 (VA)

Record details

NPI number1104142744
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2010
Last updated in NPPESMarch 4, 2026
Certification dateMarch 4, 2026

Medicare enrollment

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

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2010 (16 years in practice)
Group practice Inova Health Care Services — 1827 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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