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

Martin Alejandro Chacon Portillo, MD

Individual provider Internal Medicine Physician · NPI 1649769993

Martin Alejandro Chacon Portillo, MD is a Hospitalist in Houston, Texas. Qualified in 2016, 10 years ago. Practices with UT Physicians, a 1,732-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Texas.

Years since qualifying
10
Licensed in
AZ, TX
In the registry since
2018
Specialties on file
4
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

6411 Fannin St
Houston, TX 77030-1501
Phone: (940) 594-7563
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 6410 Fannin St Ste 600, Houston, TX 77030-5206 — (940) 594-7563

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence U5366 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence 63503 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence U5366 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (TX)

Record details

NPI number1649769993
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 2, 2018
Last updated in NPPESJanuary 6, 2025
Certification dateJanuary 6, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Ut Physicians — 1732 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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