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

Sam Mark, DPM

Individual provider Podiatrist · NPI 1770014193

Sam Mark, DPM practises Podiatry in Alexandria, Virginia. Graduated from New York College of Podiatric Medicine in 2017, 9 years ago. Practices with Loudoun Medical Group, PC, a 274-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
9
Trained at
New York College of Podiatric Medicine
Licensed in
VA
In the registry since
2017
What do these letters mean?
DPM — Doctor of Podiatric Medicine
A foot and ankle physician and surgeon.

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Practice location Address checks out

4660 Kenmore Ave Ste 608
Alexandria, VA 22304-1306
Phone: (703) 578-4161
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Podiatrist (primary) Taxonomy 213E00000X · Licence 0103301337 (VA)

Record details

NPI number1770014193
Entity typeIndividual (Type 1)
GenderMale
Credentials DPM
Sole proprietorYes
NPI enumeratedMarch 27, 2017
Last updated in NPPESOctober 2, 2023
Certification dateOctober 2, 2023

Medicare enrollment

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

Medicare specialtyPODIATRY
Medical schoolNEW YORK COLLEGE OF PODIATRIC MEDICINE
Graduated 2017 (9 years in practice)
Group practice Loudoun Medical Group, Pc — 274 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 tissue 668 times · 98th percentile
Removal of skin lesions 15 times · 62nd percentile
Removal of nail tissue 1–10 times
Skin biopsy 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 patients600
Services billed 2,858 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $560 17 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

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

Colleagues at Loudoun Medical Group, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 274 clinicians in the practice; 12 are shown here.

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