DR. BRIAN ALLEN GRAY D.O.
NPI 1942438098
Internal Medicine - Critical Care Medicine in Katy, TX
About Dr. Brian Allen Gray D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIAN ALLEN GRAY D.O. (NPI 1942438098) is an individual critical care medicine provider in Katy, Texas, licensed in Texas (R8569) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Katy Hospital, and maintains a secondary practice location in Houston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Brian Allen Gray D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Brian Gray reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Katy, TX 77494
- Reassigned Medicare billing, Texas enrollment
- 5 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hermann Katy Hospital
Acute Care Hospitals · Katy, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77494 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KATY, TX 77494
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Brian Gray's NPI number?
The NPI number for Brian Gray is 1942438098. It was assigned to this individual provider in the NPPES registry on June 29, 2009.
Where is Brian Gray located?
Brian Gray practices at 23900 Katy Freeway Intensive Care Unit, Katy, TX 77494. The listed phone number is (281) 703-3020.
What is Brian Gray's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Brian Gray enrolled in Medicare?
Yes. Brian Gray is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Brian Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Gray reassigns Medicare benefits to Katy Critical Care Consultants PLLC (Katy, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brian Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Gray accept?
Health plans from Blue Cross and Blue Shield of Texas list Brian Gray as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Brian Gray affiliated with any hospitals?
According to CMS data, Brian Gray is affiliated with Memorial Hermann Katy Hospital.
When was this NPI record last updated?
The NPPES record for Brian Gray was last updated on April 10, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Brian Allen Gray, D.O. · NPI 1942438098
Critical Care Medicine physician in Katy, Texas. Individual provider, active in the CMS NPPES registry since June 29, 2009.
## Identity
- **NPI:** 1942438098 (Entity type: Individual)
- **Enumerated:** June 29, 2009
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** R8569 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 23900 KATY FREEWAY, INTENSIVE CARE UNIT, Katy, TX 77494
- **Phone:** (281) 703-3020
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Katy Critical Care Consultants PLLC (NPI 1639535511, Katy, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City Medical College, class of 2009
## Record status
- **NPPES last updated:** April 10, 2019
- **Other identifiers:** Other R8569 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1942438098) · Data from the CMS NPPES public registry.