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DR. GREGORY F TRUAX DO
NPI 1366766099
Emergency Medicine in Las Vegas, NV

Active since March 24, 2010PECOS Enrolled
8670 W CHEYENNE AVE STE 120, LAS VEGAS, NV 89129(702) 576-9608 Get Directions Write a Review

NPPES record last updated: February 28, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Gregory F Truax Do NPPES

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

DR. GREGORY F TRUAX DO (NPI 1366766099) is an individual emergency medicine provider in Las Vegas, Nevada, licensed in Nevada (DO1805) and active in the NPI registry since March 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366766099
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. GREGORY F TRUAXCredential: DO
Location Address8670 W CHEYENNE AVE STE 120Las Vegas, NV 89129-7457
Mailing Address7945 La Cienega StLas Vegas, NV 89123-1751 · (541) 602-6573
Phone(702) 576-9608
Sole ProprietorYes
Enumeration DateMarch 24, 2010
Last NPPES UpdateFebruary 28, 2018
✔ NPI 1366766099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NV · DO1805
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
8670 W CHEYENNE AVE STE 120, Las Vegas, NV 89129
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory F Truax Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Gregory Truax reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Superior Emergency Physicians Harris, PLLC
9.1 mi
Emergency Medicine
1409 E LAKE MEAD BLVD
North Las Vegas, NV 89030
  • Reassigned Medicare billing, Nevada enrollment
  • 34 clinicians in this Medicare group
NPI 1356885222 (817) 451-4208
Edwards Bell MD PC
333 mi
Emergency Medicine
2375 E PRATER WAY
Sparks, NV 89434
  • Reassigned Medicare billing, Nevada enrollment
  • 44 clinicians in this Medicare group
NPI 1740157098 (775) 331-7000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
57 services54 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
39 services39 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
13 services12 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89129 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
$88.51 typical visit price
range $57.07 – $173.24
Typical copayment $22.12 (range $14.26 – $43.31)
Most-billed visit code 99203
Established Patient
$100.60 typical visit price
range $18.27 – $140.96
Typical copayment $25.15 (range $4.56 – $35.24)
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.

Other Providers at the Same Location NPPES 6

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

KINSLEE BROOK SCAMALDO PA
Physician Assistant
8670 W CHEYENNE AVE STE 120
LAS VEGAS, NV 89129
Clark County (705) 576-9608
STEPHANOS PARASKEVAS ORPHANIDIS MD
Emergency Medicine
8670 W CHEYENNE AVE STE 120, MAIMONIDES MEDICAL CENTER DEPARTMENT OF EMERGENCY MED
LAS VEGAS, NV 89129
Clark County (702) 576-9608
ST MICHEALS BEHAVIORALHEALTH SERVICES LLC
Community/Behavioral Health
8670 W CHEYENNE AVE STE 120
LAS VEGAS, NV 89129
Clark County (762) 728-0334
CHAMPAGNE SUMBRY QBA
Behavior Technician
8670 W CHEYENNE AVE STE 120
LAS VEGAS, NV 89129
Clark County (702) 419-1262
LISA ARGUELLO-GILLILAND
Nurse Practitioner (Family)
8670 W CHEYENNE AVE STE 120
LAS VEGAS, NV 89129
Clark County (702) 576-9608
FAITH, HOPE, AND CHARITY
Community/Behavioral Health
8670 W CHEYENNE AVE STE 120
LAS VEGAS, NV 89129
Clark County (702) 419-1262

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 Gregory Truax's NPI number?

The NPI number for Gregory Truax is 1366766099. It was assigned to this individual provider in the NPPES registry on March 24, 2010.

Where is Gregory Truax located?

Gregory Truax practices at 8670 W Cheyenne Ave Ste 120, Las Vegas, NV 89129. The listed phone number is (702) 576-9608.

What is Gregory Truax's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Gregory Truax enrolled in Medicare?

Yes. Gregory Truax is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gregory Truax's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Truax reassigns Medicare benefits to 2 organizations: Superior Emergency Physicians Harris, PLLC (North Las Vegas, NV) and Edwards Bell MD PC (Sparks, NV). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Truax's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Truax was last updated on February 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.