GONZALO A DIAZ MD
NPI 1134129240
Internal Medicine - Pulmonary Disease in El Paso, TX

Q: What is Gonzalo Diaz's NPI number?

The NPI number for Gonzalo Diaz is 1134129240. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Q: What is Gonzalo Diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Gonzalo Diaz was last updated on January 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.

Active since July 29, 2005PECOS EnrolledAccepts Medicare Assignment

21.25/100

CMS Quality Rating

4305 N MESA ST STE B, EL PASO, TX 79902(915) 779-7378(915) 779-2822 Get Directions Write a Review

NPPES record last updated: January 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Gonzalo A Diaz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GONZALO A DIAZ MD (NPI 1134129240) is an individual pulmonary disease provider in El Paso, Texas, licensed in Texas (G4109) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, maintains 5 additional practice locations, and is a graduate of Other (1975).

NPPES Registry Identity

NPI1134129240

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameGONZALO A DIAZCredential: MD

Location Address4305 N MESA ST STE BEl Paso, TX 79902-1124

Mailing Address4305 N Mesa St Ste BEl Paso, TX 79902-1124 · (915) 779-7378 · Fax (915) 779-2822

Phone(915) 779-7378

Fax(915) 779-2822

Sole ProprietorNo

Medical School CMSOtherGraduated 1975

Enumeration DateJuly 29, 2005

Last NPPES UpdateJanuary 30, 2025

NPPES CertifiedJanuary 30, 2025

✔ NPI 1134129240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in TX · G4109

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License G4109 (TX)

4305 N MESA ST STE B, El Paso, TX 79902

Open in Google Maps ↗

Secondary Practice Locations 5

Location 14305 N Mesa St, Ste AEl Paso, TX 79902-1123 · Phone (915) 532-2477 · Fax (915) 532-2470

Location 21009 Golf Course Rd SE Ste 109Rio Rancho, NM 87124-4705 · Phone (505) 891-3344 · Fax (505) 896-4499

Location 31204 Main St NE Ste ALos Lunas, NM 87031-7423 · Phone (505) 388-2015 · Fax (505) 214-5145

Location 41155 Commerce Dr Ste GLas Cruces, NM 88011-8257 · Phone (575) 647-5337 · Fax (575) 647-5338

Location 51651 Galisteo StSanta Fe, NM 87505-4752 · Phone (505) 395-5315 · Fax (505) 214-5396

Other Identifiers 2

Medicaid000U9973NM

Medicaid138134508TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gonzalo A Diaz Md 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.

PECOS PAC ID9133141633

PECOS Enrollment IDI20060428000524, I20121109000322, I20190520001959

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 16

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

1,387 services820 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

548 services410 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

460 services31 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

290 services271 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

267 services267 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

262 services251 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

171 services143 patients

Electronic analysis of implanted neurostimulator generator with complex cranial nerve stimulator programming 95977

This procedure involves using electronic systems to evaluate and adjust an implanted neurostimulator generator. This device aids in controlling nerve activity in the brain, helping manage conditions like epilepsy or chronic pain. It's a non-invasive process that ensures optimal device performance.

102 services39 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

56 services56 patients

Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation G0399

A Home Sleep Test (HST) with a Type III Portable Monitor is an unattended test that records your breathing, heart rate, and oxygen levels during sleep. This test uses a minimum of 4 channels to monitor these parameters, helping to diagnose sleep disorders.

34 services34 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

26 services26 patients

Electronic analysis of neurostimulator generator with simple cranial nerve stimulator programming 95976

This procedure involves using electronic devices to analyze and adjust a neurostimulator generator. This device helps regulate nerve activity in the brain, improving certain neurological conditions. The programming is kept simple for easy understanding and management.

24 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

23 services21 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

17 services15 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

15 services15 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 79902 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

21.25/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

70.83

Referred Medical Equipment & Supplies CMS DME claims 22

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

50 suppliers1,076 claims1,076 services$32.76 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

51 suppliers1,143 claims1,144 services$74.00 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

49 suppliers1,047 claims2,372 services$29.49 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

43 suppliers590 claims2,933 services$15.61 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

30 suppliers286 claims1,419 services$13.19 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

56 suppliers994 claims1,001 services$47.54 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

63 suppliers1,276 claims1,278 services$15.04 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

22 suppliers112 claims112 services$8.73 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

52 suppliers1,002 claims1,002 services$10.76 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

68 suppliers2,117 claims9,969 services$1.88 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

32 suppliers443 claims443 services$5.17 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

56 suppliers566 claims566 services$11.16 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

6 suppliers47 claims47 services$14.05 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

7 suppliers110 claims110 services$910.12 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

20 suppliers294 claims294 services$79.29 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0471

DME-Other DME · category DE001N

16 suppliers193 claims194 services$200.66 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

21 suppliers170 claims170 services$118.66 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

20 suppliers447 claims452 services$11.76 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

42 suppliers1,904 claims1,921 services$30.55 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

20 suppliers566 claims569 services$69.02 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

2 suppliers29 claims29 services$28.34 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$31.53 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GONZALO A DIAZ

Internal Medicine (Sleep Medicine)

4305 N MESA ST STE B
EL PASO, TX 79902

El Paso County (915) 779-7378

DR. RONALD J BLUMENFELD M.D.

Specialist

4305 N MESA ST STE B
EL PASO, TX 79902

El Paso County (915) 779-7378

GONZALO A DIAZ

Durable Medical Equipment & Medical Supplies

4305 N MESA ST STE B
EL PASO, TX 79902

El Paso County (915) 779-7378

EL PASO SLEEP CENTER PA

Internal Medicine (Sleep Medicine)

4305 N MESA ST STE B
EL PASO, TX 79902

El Paso County (915) 779-7378

MISHKA RADOVICH FNPC

Nurse Practitioner (Family)

4305 N MESA ST STE B
EL PASO, TX 79902

El Paso County (915) 779-7378

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 Gonzalo Diaz's NPI number?

The NPI number for Gonzalo Diaz is 1134129240. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Where is Gonzalo Diaz located?

Gonzalo Diaz practices at 4305 N Mesa St Ste B, El Paso, TX 79902. The listed phone number is (915) 779-7378.

What is Gonzalo Diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Gonzalo Diaz enrolled in Medicare?

Yes. Gonzalo Diaz 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.

What insurance does Gonzalo Diaz accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 7 other insurers list Gonzalo Diaz 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.

When was this NPI record last updated?

The NPPES record for Gonzalo Diaz was last updated on January 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.