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

Dr. Marcel Alejandro De Dios, PHD

Individual provider Psychologist · NPI 1649595315

Dr. Marcel Alejandro De Dios, PHD is a Clinical Psychologist in Houston, Texas. Qualified in 2007, 19 years ago. Practices with Houston Methodist Specialty Physicians, a 1,492-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
19
Licensed in
TX
In the registry since
2010
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

6550 Fannin Street Smith Tower Ste 1201
Houston, TX 77030
Phone: (713) 441-3372
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 36745 (TX)

Record details

NPI number1649595315
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedApril 6, 2010
Last updated in NPPESJune 27, 2025
Certification dateJune 6, 2025
Mailing address5139 Jackwood St, Houston, TX 77096-1415

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Houston Methodist Specialty Physicians — 1492 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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