Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Robert Samuel Diaz, MD

Individual provider Psychiatry Physician · NPI 1245816727

Robert Samuel Diaz, MD is a Psychiatry Physician in Houston, Texas. Works from 2 locations. Licensed in Texas.

Licensed in
TX
In the registry since
2021
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

2800 S Macgregor Way
Houston, TX 77021-1032
Phone: (971) 322-6771
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3181 Sw Sam Jackson Park Rd L-579, Portland, OR 97239 — (971) 322-6771

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence V7498 (TX)

Record details

NPI number1245816727
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2021
Last updated in NPPESMarch 19, 2026
Certification dateMarch 19, 2026

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients11
Services billed 18 a service is one billed item, such as a visit, a test or a procedure
Average patient age44

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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