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

Individual provider Nephrology Physician · NPI 1700891009

Alak Ray, MD practises Nephrology in Houston, Texas. Graduated from State University of New York at Buffalo School of Medicine in 1983, 43 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
43
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
TX
In the registry since
2006
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

1631 N Loop W #460
Houston, TX 77008-1500 Not confirmed with CMS for 16 years — call before visiting
Phone: (713) 864-6100
Fax: (713) 864-1755
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence G7868 (TX)

Record details

NPI number1700891009
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 29, 2006
Last updated in NPPESJuly 12, 2010

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients110
Services billed 2,353 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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.

Food and Beverage $266 10 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.

Other providers in Houston