Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. David Clark Flack, DO

Individual provider Family Medicine Physician · NPI 1730384298

Dr. David Clark Flack, DO is registered under Family Practice in Winchester, Virginia. Graduated from West Virginia School of Osteopathic Medicine in 2006, 20 years ago. Practices with Selma Medical Assoc Inc, a 28-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
20
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
VA
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

104 Selma Dr
Winchester, VA 22601-3834
Phone: (540) 678-2800
Fax: (540) 678-2859
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 0102202200 (VA)

Record details

NPI number1730384298
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 15, 2007
Last updated in NPPESSeptember 29, 2026
Certification dateSeptember 29, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesPULMONARY DISEASE
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2006 (20 years in practice)
Group practice Selma Medical Assoc Inc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients625
Services billed 8,334 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Selma Medical Assoc Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 28 clinicians in the practice; 12 are shown here.

Other providers in Winchester