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

Mark Ephrom Sowell, DPM

Individual provider Primary Podiatric Medicine Podiatrist · NPI 1679517528

Mark Ephrom Sowell, DPM practises Podiatry in Nacogdoches, Texas. Graduated from Kent State University College of Podiatric Medicine in 1996, 30 years ago. Practices with East Texas Foot Associates, a 7-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
30
Trained at
Kent State University College of Podiatric Medicine
Licensed in
TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
DPM — Doctor of Podiatric Medicine
A foot and ankle physician and surgeon.

See every abbreviation used in this directory →

Practice location Address checks out

3316 N University Dr Ste C
Nacogdoches, TX 75965-2632 Not confirmed with CMS for 14 years — call before visiting
Phone: (936) 559-1700
Fax: (936) 559-1713
Show map & directions

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

Specialties & licences

Primary Podiatric Medicine Podiatrist (primary) Taxonomy 213EP1101X · Licence 1449 (TX)
Foot Surgery Podiatrist Taxonomy 213ES0131X · Licence 1449 (TX)

Record details

NPI number1679517528
Entity typeIndividual (Type 1)
GenderMale
Credentials DPM
Sole proprietorYes
NPI enumeratedJune 15, 2006
Last updated in NPPESDecember 14, 2011

Medicare enrollment

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

Medicare specialtyPODIATRY
Medical schoolKENT STATE UNIVERSITY COLLEGE OF PODIATRIC MEDICINE
Graduated 1996 (30 years in practice)
Group practice East Texas Foot Associates — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 nail tissue 1,077 times · 92nd percentile
Removal of tissue 87 times · 84th percentile
Removal or shaving of skin growth 75 times · 82nd percentile

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 patients396
Services billed 4,384 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 $64 6 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.

Colleagues at East Texas Foot Associates

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.