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DR. STEPHEN DUMONTIER D.O.
NPI 1295021905
Emergency Medicine in Las Vegas, NV

Active since June 21, 2011PECOS EnrolledAccepts Medicare Assignment
84.95/100
CMS Quality Rating
1800 W CHARLESTON BLVD, LAS VEGAS, NV 89102(702) 383-1958 Get Directions Write a Review

NPPES record last updated: May 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 22, 2025, Jul 26, 2024, Jul 21, 2022 and 3 more (6 updates tracked since 2017).

About Dr. Stephen Dumontier D.o. NPPES

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

DR. STEPHEN DUMONTIER D.O. (NPI 1295021905) is an individual emergency medicine provider in Las Vegas, Nevada, licensed in Nevada (DO3224) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Saint Rose Dominican Hospitals - Siena Campus, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1295021905
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. STEPHEN DUMONTIERCredential: D.O.
Location Address1800 W CHARLESTON BLVDLas Vegas, NV 89102-2329
Mailing Address1800 W Charleston BlvdLas Vegas, NV 89102-2386 · (702) 383-2000
Phone(702) 383-1958
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateJune 21, 2011
Last NPPES UpdateMay 22, 20256 updates tracked since enumeration
NPPES CertifiedMay 22, 2025
✔ NPI 1295021905 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in NV · DO3224✔ Licensed in CA · 20A12925
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1800 W CHARLESTON BLVD, Las Vegas, NV 89102
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Secondary Practice Locations 3

Location 134800 Bob Wilson Dr, Navy Medical Center San Diego, Graduate MedicalSan Diego, CA 92134 · Phone (619) 532-5200
Location 21402 S Grand BlvdSaint Louis, MO 63104-1004 · Phone (314) 577-8000
Location 3400 N Pepper AveColton, CA 92324-1801 · Phone (909) 580-1000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Stephen Dumontier D.o. 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 ID6204059728
PECOS Enrollment IDI20221025000383, I20240604003147
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

4

Medicare enrollment records show Stephen Dumontier reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Vituity-Nevada Medical Services Koury & Partners PC
2.5 mi
Emergency Medicine
4980 W SAHARA AVE STE 100
Las Vegas, NV 89146
  • Reassigned Medicare billing, Nevada enrollment
  • 100 clinicians in this Medicare group
NPI 1417797275 (702) 216-7365
Tempe Emergency Physicians, Ltd
80 mi
Emergency Medicine
2735 SILVER CREEK RD
Bullhead City, AZ 86442
  • Reassigned Medicare billing, Arizona enrollment
  • 55 clinicians in this Medicare group
NPI 1376934315 (928) 763-2273
St Jude Emergency Medical Group Inc
221 mi
Emergency Medicine
101 E VALENCIA MESA DR, EM DEPT
Fullerton, CA 92835
  • Reassigned Medicare billing, California enrollment
  • 52 clinicians in this Medicare group
NPI 1720190804 (949) 300-9287
Sound Physicians Emergency Medicine Of Nevada Bessler PLLC
340 mi
Emergency Medicine
2375 E PRATER WAY
Sparks, NV 89434
  • Reassigned Medicare billing, Nevada enrollment
  • 117 clinicians in this Medicare group
NPI 1881151231 (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.
246 services243 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.
179 services169 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.
81 services78 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
43 services42 patients

Hospital Affiliations CMS Care Compare 3

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

Saint Rose Dominican Hospitals - Siena Campus

Acute Care Hospitals · Henderson, NV
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number290045
Location3001 St Rose ParkwayHenderson, NV 89052 · Clark County
Emergency services Birthing friendly

Saint Rose Dominican Hospitals - San Martin Campus

Acute Care Hospitals · Las Vegas, NV
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number290053
Location8280 W Warm Springs RoadLas Vegas, NV 89113 · Clark County
Emergency services Birthing friendly

Saint Rose Dominican Hospitals - North Las Vegas

Acute Care Hospitals · North Las Vegas, NV
OwnershipProprietary
CMS Certification Number290058
Location1550 W Craig RanchNorth Las Vegas, NV 89031 · Clark County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89102 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.

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.

84.95/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.53
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

MICHAEL M LEE MD
Internal Medicine
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 921-6823
DR. ALAN MICHAEL ZETO JR. MD
Family Medicine
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 207-8263
DR. ADAM MCLEAN MURRAY MD
Student in an Organized Health Care Education/Training Program
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 671-2385
YOUNG SUK SONG M.D.
Radiology (Diagnostic Radiology)
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 383-2000
EMERGENCY MEDICINE PHYSICIANS OF CLARK PEDIATRICS MCCOURT, PLLC
Emergency Medicine
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 383-2085
LORI NICOLE WATSON RD
Dietitian, Registered
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (405) 863-7068
GABRIELA AGUIRRE RD
Dietitian, Registered
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 383-0000
GIAN FULE CRNA
Nurse Anesthetist, Certified Registered
1800 W CHARLESTON BLVD
LAS VEGAS, NV 89102
Clark County (702) 383-2000

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 Stephen Dumontier's NPI number?

The NPI number for Stephen Dumontier is 1295021905. It was assigned to this individual provider in the NPPES registry on June 21, 2011.

Where is Stephen Dumontier located?

Stephen Dumontier practices at 1800 W Charleston Blvd, Las Vegas, NV 89102. The listed phone number is (702) 383-1958.

What is Stephen Dumontier's specialty?

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

Is Stephen Dumontier enrolled in Medicare?

Yes. Stephen Dumontier 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.

Which organizations bill Medicare for Stephen Dumontier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Dumontier reassigns Medicare benefits to 4 organizations: Vituity-Nevada Medical Services Koury & Partners PC (Las Vegas, NV), Tempe Emergency Physicians, Ltd (Bullhead City, AZ), St Jude Emergency Medical Group Inc (Fullerton, CA) and Sound Physicians Emergency Medicine Of Nevada Bessler PLLC (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 Stephen Dumontier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Dumontier accept?

Health plans from Blue Cross Blue Shield of Arizona list Stephen Dumontier 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 Stephen Dumontier affiliated with any hospitals?

According to CMS data, Stephen Dumontier is affiliated with Saint Rose Dominican Hospitals - Siena Campus, Saint Rose Dominican Hospitals - San Martin Campus and Saint Rose Dominican Hospitals - North Las Vegas.

When was this NPI record last updated?

The NPPES record for Stephen Dumontier was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.