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

Dr. Thomas Michael Mendler, MD

Individual provider Internal Medicine Physician · NPI 1861712895

Dr. Thomas Michael Mendler, MD is an Internal Medicine in Baton Rouge, Louisiana. Graduated from University of Texas Medical School at Houston in 2008, 18 years ago. Practices with Our Lady of the Lake Physician Group LLC, a 635-clinician group and accepts Medicare assignment. Licensed in Louisiana and Texas.

Years since qualifying
18
Trained at
University of Texas Medical School at Houston
Licensed in
LA, TX
In the registry since
2010
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5000 Hennessy Blvd
Baton Rouge, LA 70808-4375
Phone: (225) 765-4050
Fax: (225) 765-4046
Show map & directions

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD.204672 (LA)
Internal Medicine Physician Taxonomy 207R00000X · Licence N5865 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD.204672 (LA)

Record details

NPI number1861712895
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2010
Last updated in NPPESSeptember 9, 2021
Certification dateSeptember 9, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 2008 (18 years in practice)
Group practice Our Lady Of The Lake Physician Group Llc — 635 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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