DR. WILLIAM DENNIS M.D.
NPI 1366855694
Ophthalmology in Nellis Afb, NV

Active since June 04, 2014PECOS EnrolledAccepts Medicare Assignment
4700 LAS VEGAS BLVD N, NELLIS AFB, NV 89191(702) 653-2273 Get Directions Write a Review

NPPES record last updated: November 2, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 2, 2023, Aug 9, 2023, Aug 2, 2022 and 1 more (4 updates tracked since 2019).

About Dr. William Dennis M.d. NPPES

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

DR. WILLIAM DENNIS M.D. (NPI 1366855694) is an individual ophthalmology provider in Nellis Afb, Nevada, licensed in Nevada (23181) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (2014).

NPPES Registry Identity

NPI1366855694
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. WILLIAM DENNISCredential: M.D.
Location Address4700 LAS VEGAS BLVD NNellis Afb, NV 89191-6600
Mailing Address4700 Las Vegas Blvd NNellis Afb, NV 89191-6600 · (702) 653-2273
Sole ProprietorNo
Medical School CMSUniformed Services Uhs Fe Hebert School Of MedGraduated 2014
Enumeration DateJune 4, 2014
Last NPPES UpdateNovember 2, 20234 updates tracked since enumeration
NPPES CertifiedNovember 2, 2023
✔ NPI 1366855694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in NV · 23181✔ Licensed in VA · 0101259039
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
4700 LAS VEGAS BLVD N, Nellis Afb, NV 89191

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. William Dennis M.d. 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 ID9032575733
PECOS Enrollment IDI20230523001650
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 Reassignment

Medicare enrollment records show William Dennis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ophthalmology
6850 N DURANGO DR STE 110
Las Vegas, NV 89149
  • Reassigned Medicare billing, Nevada enrollment
  • 4 clinicians in this Medicare group

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.

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.
55 services47 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.
36 services36 patients
Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
29 services29 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.
18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89191 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
$131.25 typical visit price
range $57.07 – $173.24
Typical copayment $32.81 (range $14.26 – $43.31)
Most-billed visit code 99204
Established Patient
$71.14 typical visit price
range $18.27 – $140.96
Typical copayment $17.78 (range $4.56 – $35.24)
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.

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.

Integrative Medicine
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Physical Therapist (Orthopedic)
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Psychiatry & Neurology (Neurology)
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Emergency Medicine
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Internal Medicine
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Pharmacist
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Internal Medicine
4700 LAS VEGAS BLVD N
NELLIS AFB, NV 89191
Psychologist (Clinical)
4700 LAS VEGAS BLVD N, ATTN: CREDENTIALS OFFICE
NELLIS AFB, NV 89191

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 William Dennis's NPI number?

The NPI number for William Dennis is 1366855694. It was assigned to this individual provider in the NPPES registry on June 4, 2014.

Where is William Dennis located?

William Dennis practices at 4700 Las Vegas Blvd N, Nellis Afb, NV 89191. The listed phone number is (702) 653-2273.

What is William Dennis's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is William Dennis enrolled in Medicare?

Yes. William Dennis 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 organization bills Medicare for William Dennis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Dennis reassigns Medicare benefits to Brimhall Eye, PLLC (Las Vegas, NV). The 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 William Dennis'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 William Dennis was last updated on November 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.