Dr. Rachel Mier Gruner, MD

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.

• Womans Hospital Hospital · Baton Rouge, LA · listed as Womans Hospital Foundation
• Our Lady Of The Lake Regional Medical Center Hospital · Baton Rouge, LA
• Lane Home Health An Affiliate Of Lane Reg Medical Home health agency · Zachary, LA

Colleagues at Baton Rouge Clinic, a Medical Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 285 clinicians in the practice; 12 are shown here.

• Ronald P. Ceruti, MD Rheumatology Physician · Baton Rouge, LA
• Gary H Field, MD Endocrinology, Diabetes & Metabolism Physician · Baton Rouge, LA
• Stephanie R. Frederic, MD Dermatology Physician · Baton Rouge, LA
• David Neal Hastings, MD Urology Physician · Baton Rouge, LA
• Heatherly Hill Emergency Registered Nurse · New Orleans, LA
• Srujani Karra, MD Internal Medicine Physician · Baton Rouge, LA
• Michael P McCarthy, MD Internal Medicine Physician · Baton Rouge, LA
• Dr. Christopher Peck, MD Internal Medicine Physician · Baton Rouge, LA
• Dr. Andrew Matthew Robichaux, MD Otolaryngology Physician · Prairieville, LA
• Karen Sanders, APRN, FNP-C Family Nurse Practitioner · Monroe, LA
• Chau Minh Tran, NP-C Family Nurse Practitioner · Baton Rouge, LA
• Vincent Tumminello Jr., MD Internal Medicine Physician · Baton Rouge, LA

Other providers in Baton Rouge

• Dr. John Brian Green, MD

  Individual Internal Medicine Physician · NPI 1245491679

  3600 Florida Blvd, Baton Rouge, LA 70806-3842 · (225) 387-7070

• Ethan L Greenblatt, MD

  Individual Internal Medicine Physician · NPI 1295197861

  8585 Picardy Ave, Baton Rouge, LA 70809-3748 · (225) 763-4764

• Jennifer Cheryl Greeson, MD

  Individual Internal Medicine Physician · NPI 1861626368

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

• Dr. Brian Chris Gremillion, MD

  Individual Internal Medicine Physician · NPI 1326049545

  8119 Picardy Ave, Baton Rouge, LA 70809-3515 · (225) 214-3638

• Christopher Peter Guarisco, MD

  Individual Internal Medicine Physician · NPI 1255356002

  3401 N Blvd Ste 200, Baton Rouge, LA 70806-3743 · (225) 336-3100

• Thomas Ryan Gullatt, MD

  Individual Internal Medicine Physician · NPI 1750701421

  8401 Picardy Ave, Baton Rouge, LA 70809-3685 · (225) 308-0247

• Subhakar Gummadi, MD

  Individual Internal Medicine Physician · NPI 1225014046

  3600 Florida Blvd, Baton Rouge, LA 70806 · (225) 387-7070

• Dr. Charles Ray Halliburton Jr., MD

  Individual Internal Medicine Physician · NPI 1083614721

  5228 Dijon Dr, Baton Rouge, LA 70808-4311 · (225) 765-8829