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

Mark A Walker, MD

Individual provider Family Medicine Physician · NPI 1245389394

Mark A Walker, MD is registered under Family Practice in Houma, Louisiana. Graduated from Tulane University School of Medicine in 1987, 39 years ago. Practices with Houma Family Practice Clinic APMC, a 2-clinician group. Licensed in Louisiana.

Years since qualifying
39
Trained at
Tulane University School of Medicine
Licensed in
LA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

606 Liberty St
Houma, LA 70360-4622 Not confirmed with CMS for 19 years — call before visiting
Phone: (985) 872-3000
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

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 019391 (LA)

Record details

NPI number1245389394
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 9, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolTULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Houma Family Practice Clinic Apmc — 2 clinicians
Accepts Medicare assignment Not indicated

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 1–10 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 patients301
Services billed 1,742 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

  • Physicians Medical Center Hospital · Houma, LA · listed as Physicians Medical Center, LLC
  • Terrebonne General Medical Center - Parish Hospital · Houma, LA · listed as Terrebonne Parish Hospital Service District #1
  • Terrebonne Homecare, Inc. Home health agency · Houma, LA · listed as Terrebonne Homecare, Inc
  • Amedisys Home Health Home health agency · Houma, LA
  • Ochsner Home Health Of Raceland Home health agency · Raceland, LA
  • Vitalcaring Group Home health agency · Houma, LA

Colleagues at Houma Family Practice Clinic APMC

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

Other providers in Houma