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

David C Treen Jr., MD

Individual provider Surgery Physician · NPI 1235152828

David C Treen Jr., MD is a General Surgery in Marrero, Louisiana. Graduated from Tulane University School of Medicine in 1984, 42 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
42
Trained at
Tulane University School of Medicine
Licensed in
LA
In the registry since
2006
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

1111 Medical Center Blvd South 860
Marrero, LA 70072-3151
Phone: (504) 349-6860
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 017991 (LA)

Record details

NPI number1235152828
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 25, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1111 Medical Center Blvd, South 860, Marrero, LA 70072-3151

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolTULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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