Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark Gregory Garbutt, MD

Individual provider Internal Medicine Physician · NPI 1861488793

Dr. Mark Gregory Garbutt, MD practises Internal Medicine in Baton Rouge, Louisiana. Graduated from Louisiana State University School of Medicine in New Orleans in 2001, 25 years ago. Practices with Coolidge Physician Services LLC, a 51-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
25
Trained at
Louisiana State University School of Medicine in New Orleans
Licensed in
LA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

18971 Santa Maria Dr
Baton Rouge, LA 70809
Phone: (225) 329-7545
Show map & directions

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

Additional practice locations (1)

  • 7777 Hennessy Blvd, Baton Rouge, LA 70808-4300 — (225) 765-5864

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 15728R (LA)

Record details

NPI number1861488793
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 26, 2005
Last updated in NPPESJanuary 21, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduated 2001 (25 years in practice)
Group practice Coolidge Physician Services Llc — 51 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 $20 1 payment · 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 Coolidge Physician Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 51 clinicians in the practice; 12 are shown here.

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