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

Guillermo M Aldave Orzaiz, MD, PHD

Individual provider Neurological Surgery Physician · NPI 1255783411

Guillermo M Aldave Orzaiz, MD, PHD is a Neurological Surgery Physician in Houston, Texas. Works from 2 locations. Licensed in Texas.

Licensed in
TX
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
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

6701 Fannin St
Houston, TX 77030-2608
Phone: (832) 822-1282
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1515 Holcombe Blvd, Houston, TX 77030-4000 — (713) 792-6161

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence T1276 (TX)

Record details

NPI number1255783411
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJuly 12, 2016
Last updated in NPPESMarch 4, 2026
Certification dateMarch 4, 2026

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $30 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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