Brian Allen Gray, D.O.
Critical Care Medicine (Internal Medicine) Physician · Katy, TX
Brian Allen Gray, D.O. is a critical care medicine (internal medicine) physician with a practice address in Katy, Texas, and NPI 1942438098, issued on Jun 29, 2009. Check the license (Texas R8569, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Allen Gray
- Credential
- D.O.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- R8569 TX
Self-reported in NPPES; status is on the state search - Practice location
- 23900 Katy Freeway, Katy, TX 77494
- Phone
- (281) 703-3020
- Enumerated
- Jun 29, 2009
- Record last updated
- Apr 10, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181127000805); accepts Medicare assignment
- Medical or professional school
- Kansas City Medical College, 2009
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 413 in Texas → Look up another NPI →
Also registered at 23900 Katy Freeway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zelinjo Anagbogu, FNPNurse Practitioner1104101385
- Gopalasamy Durairaj, M.D.Emergency Medical Services (Emergency Medicine) Physician1841282548
Verify Brian Allen Gray in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license R8569Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
13 Medicare Part D claims, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $50.61
3 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Katy Critical Care Consultants PLLCKaty, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Allen Gray among 413 critical care medicine (internal medicine) physician records in Texas
Brian Allen Gray, D.O. is one of 413 critical care medicine (internal medicine) physician records with a practice address in Texas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 49% of them.
- NPI issued2009 · 49% of these records are older, 47% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2009 · median 2007 among the 346 with a school on file
- Record last updated2019 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Texas
There are 413 critical care medicine (internal medicine) physician records in Texas.
All 413 in Texas → Every provider in Katy → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Mary Udyavar, AGACNPKaty, TX 774931932827268
- Thien Nguyen, M.D.Katy, TX 774921477872505
- Anisha Arora, MDSugar Land, TX 774791720246150
- Elton Chen, D.O.Sugar Land, TX 774791215226303
- Hiba El-Qaddoumi, M.D.Sugar Land, TX 774791740560705
- Diana Guerra, MDSugar Land, TX 774791023200623
- Jonathan Jaffe, M.D.Sugar Land, TX 774791578982609
- Munish Lapsia, MDSugar Land, TX 774791467613901
Common questions
What is Brian Allen Gray, D.O.'s NPI number?
Brian Allen Gray, D.O.'s National Provider Identifier (NPI) is 1942438098, issued on Jun 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Brian Allen Gray, D.O. located?
The NPPES record lists a practice address at 23900 Katy Freeway, Katy, TX, 77494. Phone: (281) 703-3020. Providers update this record themselves, so call before visiting.
How can I verify Brian Allen Gray, D.O.'s license?
NPPES lists Texas license number R8569, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Allen Gray, D.O. prescribe under Medicare Part D?
In 2024, Brian Allen Gray, D.O. had 13 Medicare Part D claims; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.