MAJONEL ONTANILLAS MD
NPI 1235105313
Internal Medicine in Las Vegas, NV

Active since February 27, 2006PECOS EnrolledAccepts Medicare Assignment
2704 N TENAYA WAY, LAS VEGAS, NV 89128(702) 243-8500(702) 242-4194 Get Directions Write a Review

NPPES record last updated: November 18, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 18, 2024, Jan 17, 2017 (2 updates tracked since 2017).

About Majonel Ontanillas Md NPPES

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

MAJONEL ONTANILLAS MD (NPI 1235105313) is an individual internal medicine provider in Las Vegas, Nevada, licensed in Nevada (12413) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1235105313
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMAJONEL ONTANILLASCredential: MD
Location Address2704 N TENAYA WAYLas Vegas, NV 89128-0424
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 877-5199
Fax(702) 242-4194
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateFebruary 27, 2006
Last NPPES UpdateNovember 18, 20242 updates tracked since enumeration
NPPES CertifiedNovember 18, 2024
NPI 1235105313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in NV · 12413 Licensed in MA · 223130
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

2704 N TENAYA WAY, Las Vegas, NV 89128

Other Identifiers 18

Other042472266United Healthcare
Other7398225Aetna Us Healthcare
OtherJ28398Blue Shield Indemnity
OtherJ28398Blue Care Elect
OtherJ28398Blue Shield Hmo Blue
Other042472266One Health Plan
Other1919739First Health
Other419302Tufts Health Plan
Other4714498Cigna Health Plan
Other042472266Private Healthcare System
OtherAA22681Harvard Pilgrim
Other91262Fallon Community Health
Other2091283Medicaid Welfare
Medicaid2091283MA
Other784170Mvp Health Care
Other042472266Three Rivers
Medicaid1235105313NV
OtherA38033Medicare B

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

Majonel Ontanillas 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 ID6406832674
PECOS Enrollment IDI20071018000583
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 2

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 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.
94 services55 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.
34 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89128 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
$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 20

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

Family Medicine
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Physician Assistant
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Nurse Practitioner
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Pediatrics
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Internal Medicine
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Nurse Practitioner (Family)
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Pediatrics
2704 N TENAYA WAY
LAS VEGAS, NV 89128
Family Medicine
2704 N TENAYA WAY
LAS VEGAS, NV 89128

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 Majonel Ontanillas's NPI number?

The NPI number for Majonel Ontanillas is 1235105313. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is Majonel Ontanillas located?

Majonel Ontanillas practices at 2704 N Tenaya Way, Las Vegas, NV 89128. The listed phone number is (702) 243-8500.

What is Majonel Ontanillas's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Majonel Ontanillas enrolled in Medicare?

Yes. Majonel Ontanillas 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.

When was this NPI record last updated?

The NPPES record for Majonel Ontanillas was last updated on November 18, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.