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Sleep Medicine

Gonzalo A. Diaz, MD

Sees patients in Rio Rancho, NM · El Paso, TX · Las Cruces, NM … · New Mexico, Texas

Summary

Dr. Gonzalo A. Diaz, MD is a sleep medicine doctor at 1009 Golf Course Rd SE, 109 El Paso Sleep Disorder Ctr, Rio Rancho, NM 87124. Phone: (915) 779-7378. Accepts Medicare assignment. In 2024, Gonzalo A. Diaz had 1,335 Original Medicare patients and 4,456 services. NPI 1134129240. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Sleep medicine doctor (Medicare lists Sleep Medicine)
  • Address: 1009 Golf Course Rd SE, 109 El Paso Sleep Disorder Ctr, Rio Rancho, NM 87124 · Directions (11 more locations)
  • Phone: (915) 779‑7378
  • Medicare: Accepts Medicare assignment
  • Group practice: El Paso Pulmonary Association (+1 more)
  • Medical school: graduated 1975 (51 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gonzalo A. Diaz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Gonzalo A. Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Gonzalo A. Diaz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Gonzalo A. Diaz see?
In 2024, CMS data shows 1,335 Original Medicare patients and 4,456 services for Gonzalo A. Diaz. This counts Original Medicare only and measures volume, not quality.
What is Gonzalo A. Diaz's NPI number?
1134129240. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Gonzalo A. Diaz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients1,335
Services billed to Medicare4,456
Different services or procedures32
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,387 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)548 services
  3. Professional service for preparation and provision of 1 or more antigens (95165)460 services
  4. Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)290 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)267 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis49%
  • Diabetes44%
  • Chronic kidney disease28%
  • Ischemic heart disease27%

Practice locations

Addresses where Gonzalo A. Diaz is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.

Group practices

Medicare enrollment lists Gonzalo A. Diaz as a member of these groups (CMS data updated October 2, 2026).

  • El Paso Pulmonary Association15 clinicians in the group
  • Gonzalo a Diaz7 clinicians in the group

Specialties

Find other Sleep Medicine doctors in New Mexico →

Other sleep medicine doctors in New Mexico

Clinicians with the same Medicare primary specialty in New Mexico — not a recommendation.

All sleep medicine doctors in New Mexico →

Other clinicians in El Paso Pulmonary Association

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1975 (51 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134129240
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians