Mark Peal Posner, 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. Those with a page here are linked.

• Baton Rouge General Medical Center Hospital · Baton Rouge, LA
• Surgical Specialty Center Of Baton Rouge Hospital · Baton Rouge, LA
• Womans Hospital Hospital · Baton Rouge, LA · listed as Womans Hospital Foundation
• Our Lady Of The Lake Regional Medical Center Hospital · Baton Rouge, LA

Colleagues at Our Lady of the Lake Physician Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 635 clinicians in the practice; 12 are shown here.

• Melissa H Carroll, FNP-C Family Nurse Practitioner · Baton Rouge, LA
• Robert Andrew Causey, MD Internal Medicine Physician · Baton Rouge, LA
• Johanna De Silva, PA Physician Assistant · Baton Rouge, LA
• Dr. Riley Anderson Dean, MD Plastic and Reconstructive Surgery Physician · San Diego, CA
• Stephanie Smith Falcon, MD Internal Medicine Physician · Baton Rouge, LA
• Messan Dodji Folivi, MD Internal Medicine Physician · Baton Rouge, LA
• Sandra Guerguis, MD Pediatric Infectious Diseases Physician · Baton Rouge, LA
• Alyssa Kurtz Ovaitt, MD Otolaryngology Physician · New Orleans, LA
• Ashley Territo Pourciau, FNP Family Nurse Practitioner · New Roads, LA
• Dr. Nakhle Saadallah Saba, MD Specialist · Baton Rouge, LA
• Katherine Manzella Templeton, APRN, NP-C Family Nurse Practitioner · Baton Rouge, LA
• Jessica Wright, FNP-C Family Nurse Practitioner · Baton Rouge, LA

Other providers in Baton Rouge

• Dr. Spyrie D. Mays, MD

  Individual Urology Physician · NPI 1851300925

  3401 N Blvd Ste 340, Baton Rouge, LA 70806-3743 · (225) 381-2740

• Andrew N McCall, MD

  Individual Urology Physician · NPI 1790122299

  8080 Bluebonnet Blvd Ste 3000, Baton Rouge, LA 70810-7829 · (225) 766-8100

• James Selser Morris, MD

  Individual Urology Physician · NPI 1043271497

  7777 Hennessy Blvd Ste 2004, Baton Rouge, LA 70808-4300 · (225) 769-2500

• Wesley Ray Porta, MD

  Individual Urology Physician · NPI 1508180530

  7373 Perkins Rd, Baton Rouge, LA 70808-4326 · (225) 769-4044

• Sujith K Reddy, MD

  Individual Urology Physician · NPI 1194934182

  16777 Medical Center Dr, Baton Rouge, LA 70816-3254 · (225) 754-3278

• Anna Robichaux Smither, MD

  Individual Urology Physician · NPI 1437186459

  8080 Bluebonnet Blvd Ste 3000, Baton Rouge, LA 70810-7827 · (225) 766-8100

• Spyrie D Mays MD APMC

  Organization Urology Physician · NPI 1497072508

  3401 N Blvd Ste 340, Baton Rouge, LA 70806-3743 · (225) 381-2740

• Robert Stewart Taylor, MD

  Individual Urology Physician · NPI 1003852302

  8080 Bluebonnet Blvd Ste 3000, Baton Rouge, LA 70810-7827 · (225) 766-8100