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

Individual provider Pediatrics Physician · NPI 1285683987

Marilyn M Landrum, MD is an Internal Medicine in Denison, Texas. Graduated from Sanford School of Medicine of University of South Dakota in 1994, 32 years ago. Practices with Texomacare, a 46-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
32
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
TX
In the registry since
2006
Specialties on file
2
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

5012 S US Highway 75 Ste 300
Denison, TX 75020-4587
Phone: (930) 416-6025
Fax: (903) 416-6138
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence L0363 (TX)
Pediatrics Physician Taxonomy 208000000X · Licence L0363 (TX)

Record details

NPI number1285683987
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 9, 2006
Last updated in NPPESJanuary 26, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 1994 (32 years in practice)
Group practice Texomacare — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Denison