DR. GUSTAVO DIAZ-REYES MD
NPI 1588652168
Otolaryngology in Kyle, TX

Active since October 08, 2005PECOS EnrolledAccepts Medicare Assignment
4100 EVERETT DR, SUITE 400, KYLE, TX 78640(512) 295-1333(512) 406-7327 Get Directions Write a Review

NPPES record last updated: June 11, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 11, 2021, Jan 2, 2017, Dec 15, 2016 and 1 more (4 updates tracked since 2016).

About Dr. Gustavo Diaz-reyes Md NPPES

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

DR. GUSTAVO DIAZ-REYES MD (NPI 1588652168) is an individual otolaryngology provider in Kyle, Texas, licensed in Texas (Q9332) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Ascension Seton Hays, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1588652168
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. GUSTAVO DIAZ-REYESCredential: MD
Location Address4100 EVERETT DR, SUITE 400Kyle, TX 78640-6146
Mailing Address6210 E Hwy 290Austin, TX 78723-1142 · (512) 483-9596 · Fax (512) 406-6216
Fax(512) 406-7327
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateOctober 8, 2005
Last NPPES UpdateJune 11, 20214 updates tracked since enumeration
NPPES CertifiedJune 11, 2021
NPI 1588652168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
Licenses Licensed in TX · Q9332 Licensed in NY · 234797
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
4100 EVERETT DR, Kyle, TX 78640

Other Identifiers 3

Medicaid364332201TX
Medicaid02634339NY
Medicaid364332202TX

Accepted 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

Dr. Gustavo Diaz-reyes 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 ID4284676636
PECOS Enrollment IDI20161108002428
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 8

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.

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.
74 services74 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
57 services46 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.
47 services47 patients
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.
47 services44 patients
Diagnostic exam of voice box using a flexible endoscope 31575
This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.
38 services34 patients
Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
37 services33 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Seton Hays

Acute Care Hospitals · Kyle, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670056
Location6001 Kyle PkwyKyle, TX 78640 · Hays County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78640 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
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 12

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
11 suppliers104 claims104 services$32.30 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
8 suppliers60 claims60 services$69.28 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
8 suppliers56 claims162 services$27.57 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
6 suppliers26 claims145 services$15.22 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
10 suppliers44 claims248 services$12.88 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
12 suppliers77 claims77 services$45.91 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 13

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

Chiropractor
4100 EVERETT DR, SUITE 200
KYLE, TX 78640
Family Medicine
4100 EVERETT DR, SUITE 400
KYLE, TX 78640
Pediatrics
4100 EVERETT DR, SUITE 400
KYLE, TX 78640
Internal Medicine (Pulmonary Disease)
4100 EVERETT DR, SUITE 210
KYLE, TX 78640
Naturopath
4100 EVERETT DR, SUITE 200
KYLE, TX 78640
Audiologist
4100 EVERETT DR, SUITE 400
KYLE, TX 78640
Family Medicine
4100 EVERETT DR, SUITE 400
KYLE, TX 78640
Chiropractor
4100 EVERETT DR
KYLE, TX 78640

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 Gustavo Diaz-reyes's NPI number?

The NPI number for Gustavo Diaz-reyes is 1588652168. It was assigned to this individual provider in the NPPES registry on October 8, 2005.

Where is Gustavo Diaz-reyes located?

Gustavo Diaz-reyes practices at 4100 Everett Dr Suite 400, Kyle, TX 78640. The listed phone number is (512) 295-1333.

What is Gustavo Diaz-reyes's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Gustavo Diaz-reyes enrolled in Medicare?

Yes. Gustavo Diaz-reyes 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 Gustavo Diaz-reyes accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 5 other insurers list Gustavo Diaz-reyes 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.

Is Gustavo Diaz-reyes affiliated with any hospitals?

According to CMS data, Gustavo Diaz-reyes is affiliated with Ascension Seton Hays.

When was this NPI record last updated?

The NPPES record for Gustavo Diaz-reyes was last updated on June 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.