Mark Gregory Jones, MD

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.

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.

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.

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.

• Ochsner Medical Center Acute Hospital · New Orleans, LA · listed as Ochsner Medical Center
• Our Lady Of The Angels Hospital Hospital · Bogalusa, LA · listed as Our Lady of the Angels Hospital, Inc
• St Tammany Parish Hospital Hospital · Covington, LA · listed as St Tammany Parish Hospital Distric #1

Colleagues at St Tammany Parish Hospital Service District No 1

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 163 clinicians in the practice; 12 are shown here.

• Dr. Brian Ashford Obstetrics & Gynecology Physician · New Orleans, LA
• Caroline Barkerding, FNP Family Nurse Practitioner · Zachary, LA
• Madeleine Duffourc, APRN, FNP-C Nurse Practitioner · Pensacola, FL
• Dr. Georges Elias El Khoury Antoun, MD Cardiovascular Disease Physician · Covington, LA
• Christopher Foret, MD Family Medicine Physician · Folsom, LA
• Dr. Constance M Gistand, MD Internal Medicine Physician · Marrero, LA
• Kathy Ann Howard, NP Adult Health Nurse Practitioner · Covington, LA
• Kaitlin Crane Massey, MD Family Medicine Physician · Mandeville, LA
• Dr. Julie Claire Morial, MDMPH Emergency Medicine Physician · Baton Rouge, LA
• MS. Wendy Anne Pratt, APRN-FNP Family Nurse Practitioner · Covington, LA
• Eleanor C Smith, MD Family Medicine Physician · Covington, LA
• Dr. Chad Benjamin Vanasselberg, MD Internal Medicine Physician · Covington, LA

Other providers in Covington

• Dr. Matthew S French, MD

  Individual Surgery Physician · NPI 1609837087

  7015 Highway 190 East Service Rd Ste 200, Covington, LA 70433-4960 · (985) 234-3000

• Stephen Owen Harkness, MD

  Individual Surgery Physician · NPI 1679501704

  101 Fairway Dr Ste 402, Covington, LA 70433-7503 · (985) 892-8959

• Dr. Ludwig C Heintz, MD

  Individual Surgery Physician · NPI 1295736411

  606 W 11th Ave, Covington, LA 70433-3630 · (985) 892-3766

• James W. Christopher, MD, LLC

  Organization Surgery Physician · NPI 1487000899

  7015 Highway 190 East Service Rd Ste 102, Covington, LA 70433-4960 · (985) 635-0074

• Marie Celeste Lagarde, MD

  Individual Surgery Physician · NPI 1225148737

  110 Lakeview Dr Ste 200, Covington, LA 70433-7511 · (985) 898-0589

• Lakeshore Surgical Associates of La

  Organization Surgery Physician · NPI 1154973360

  110 Lakeview Dr Ste 200, Covington, LA 70433-7511 · (985) 898-0589

• Lakeview Trauma and Critical Care, LLC

  Organization Surgery Physician · NPI 1154056208

  101 Judge Tanner Blvd Ste 300, Covington, LA 70433-7506 · (985) 867-3800

• Dr. Thomas E Lavin, MD

  Individual Surgery Physician · NPI 1093775819

  7015 Hwy 190 E Serv Rd Ste 200, Covington, LA 70433-4960 · (985) 234-3000