Gonzalo A. Diaz, MD
Pulmonary Disease Physician · El Paso, TX
Gonzalo A. Diaz, MD is a pulmonary disease physician with a practice address in El Paso, Texas, and NPI 1134129240, issued on Jul 29, 2005. Check the license (Texas G4109, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gonzalo A. Diaz
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- G4109 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4305 N Mesa St Ste B, El Paso, TX 79902
- Phone
- (915) 779-7378
- Enumerated
- Jul 29, 2005
- Record last updated
- Jan 30, 2025
- Fax
- (915) 779-2822
- Medicaid IDs
- 000U9973 NM
138134508 TX - Medicare enrollment
- Enrolled (PECOS I20121109000322); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 967 in Texas → Look up another NPI →
Also registered at 4305 N Mesa St Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronald Blumenfeld, M.D.Specialist1477550861
- David Briones, M.D.Psychiatry Physician1588689913
- Mishka Radovich, FNPCFamily Nurse Practitioner1922875525
Verify Gonzalo A. Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G4109Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
720 Medicare Part D claims for 234 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Eszopiclone150 claims
- Clonazepam50 claims
- Albuterol Sulfate Hfa43 claims
- Breo Ellipta40 claims
- Trazodone Hcl37 claims
- Montelukast Sodium31 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.
The MIPS final score for 2023 (Medicare payment program): 21.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,977.34
68 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 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 2 group practices
- EL Paso Pulmonary AssociationLas Cruces, NM
- Gonzalo A DiazRio Rancho, NM
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gonzalo A. Diaz among 967 pulmonary disease physician records in Texas
Gonzalo A. Diaz, MD is one of 967 pulmonary disease physician records with a practice address in Texas. 88% 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, 84% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1975 · median 2001 among the 773 with a school on file
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Texas
There are 967 pulmonary disease physician records in Texas.
All 967 in Texas → Every provider in El Paso → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Erasto Cortes, M.D.El Paso, TX 799021154321263
- Emilio Gonzalez-Ayala, MDEl Paso, TX 799021366441701
- Ahmad Hajj, M.D., F.C.C.P.El Paso, TX 799021861491748
- Jaime Quesada, MDEl Paso, TX 799021578563862
- Kevin Rowley, DOEl Paso, TX 799021942456710
- Harold Hughes, M.D.El Paso, TX 799051699703124
- Samuel Huseman, MDEl Paso, TX 799051699415471
- Landy Luna Diaz, M.DEl Paso, TX 799051215469341
Common questions
What is Gonzalo A. Diaz, MD's NPI number?
Gonzalo A. Diaz, MD's National Provider Identifier (NPI) is 1134129240, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gonzalo A. Diaz, MD located?
The NPPES record lists a practice address at 4305 N Mesa St Ste B, El Paso, TX, 79902. Phone: (915) 779-7378. Providers update this record themselves, so call before visiting.
How can I verify Gonzalo A. Diaz, MD's license?
NPPES lists Texas license number G4109, 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 Gonzalo A. Diaz, MD prescribe under Medicare Part D?
In 2024, Gonzalo A. Diaz, MD had 720 Medicare Part D claims for 234 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Gonzalo A. Diaz, MD's MIPS final score?
The 2023 MIPS final score is 21.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.