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

Dr. Manuel Arnaldo Vilchez-Diaz, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1164684908

Dr. Manuel Arnaldo Vilchez-Diaz, MD is registered under Critical Care (Intensivists) in Houston, Texas. Qualified in 2003, 23 years ago. Practices with Cogent Healthcare of Texas PA, a 114-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arkansas and Texas.

Years since qualifying
23
Licensed in
AR, TX
In the registry since
2008
Specialties on file
3
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

6565 Fannin St Ste 1003
Houston, TX 77030-2703
Phone: (713) 441-1100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7301 Rogers Ave, Fort Smith, AR 72903-4100 — (479) 314-6486

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence S3889 (TX)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence E-8963 (AR)
Infectious Disease Physician Taxonomy 207RI0200X · Licence E-8963 (AR)

Record details

NPI number1164684908
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2008
Last updated in NPPESMarch 12, 2020
Certification dateMarch 12, 2020

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesINFECTIOUS DISEASE
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Cogent Healthcare Of Texas Pa — 114 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients164
Services billed 399 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

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.

Travel and Lodging $384 1 payment · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $256 4 payments · 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cogent Healthcare of Texas PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 114 clinicians in the practice; 12 are shown here.

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