Gustavo Diaz-Reyes, MD
Otolaryngology Physician · Kyle, TX
Gustavo Diaz-Reyes, MD is an otolaryngology physician with a practice address in Kyle, Texas, and NPI 1588652168, issued on Oct 8, 2005. Check the license (Texas Q9332, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gustavo Diaz-Reyes
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- Q9332 TX
234797 NY
Self-reported in NPPES; status is on the state search - Practice location
- 4100 Everett Dr, Kyle, TX 78640
- Phone
- (512) 295-1333
- Enumerated
- Oct 8, 2005
- Record last updated
- Jun 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (512) 406-7327
- Medicaid IDs
- 364332202 TX
02634339 NY
364332201 TX - Medicare enrollment
- Enrolled (PECOS I20161108002428); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 790 in Texas → Look up another NPI →
Also registered at 4100 Everett Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Emily Lain, D.C.Chiropractor1407151095
Verify Gustavo Diaz-Reyes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q9332Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average otolaryngology physician in 2024
157 Medicare Part D claims for 92 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Omeprazole30 claims
- Fluticasone Propionate20 claims
- Levothyroxine Sodium13 claims
- Azelastine Hcl12 claims
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.
Bills Medicare through one group practice
- Austin Regional Clinic PAKyle, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gustavo Diaz-Reyes among 790 otolaryngology physician records in Texas
Gustavo Diaz-Reyes, MD is one of 790 otolaryngology physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 80% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1990 · median 2003 among the 552 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Texas
There are 790 otolaryngology physician records in Texas.
All 790 in Texas → Every provider in Kyle → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Mark Dammert, M.D.Kyle, TX 786401417168345
- Seth Evans, MDKyle, TX 786401083825467
- Scott Franklin, M.D.Georgetown, TX 786261225176811
- Suzette MikulaMarble Falls, TX 786541033107420
- Tracy Byerly, M.D.Fredericksburg, TX 786241427354208
- Michael Sudderth, M.D.Fredericksburg, TX 786241518259076
- Palak Patel, M.D.Round Rock, TX 786641780125955
- Rachel Arffa, MDRound Rock, TX 786651316268410
Common questions
What is Gustavo Diaz-Reyes, MD's NPI number?
Gustavo Diaz-Reyes, MD's National Provider Identifier (NPI) is 1588652168, issued on Oct 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gustavo Diaz-Reyes, MD located?
The NPPES record lists a practice address at 4100 Everett Dr, Kyle, TX, 78640. Phone: (512) 295-1333. Providers update this record themselves, so call before visiting.
How can I verify Gustavo Diaz-Reyes, MD's license?
NPPES lists Texas license number Q9332, 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 Gustavo Diaz-Reyes, MD prescribe under Medicare Part D?
In 2024, Gustavo Diaz-Reyes, MD had 157 Medicare Part D claims for 92 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.