Dr. Majonel L. Ontanillas
- Gender: Male
- Experience: 29 years
- Graduation year: 1992
- Sole propriator: No
- NPI: 1235105313
Dr. Majonel L. Ontanillas MD
Internist
He is located at 2704 North Tenaya Way in Las Vegas, NV 89128. Can help patients with the following: Abdominal Pain, Arthritis, Edema, Gastroesophageal Reflux Disease (GERD), Influenza, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1235105313. Appointment can be made via the phone number (702) 243-8500. He is affiliated with 2 practices.
Conditions treated
Dr. Majonel Ontanillas, being an internist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Majonel L. Ontanillas.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Medicare Enrollment
Dr. Majonel L. Ontanillas is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Bills through: Southwest Medical Associates Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| GlaxoSmithKline | $438 |
| Janssen | $430 |
| Sanofi | $407 |
Other
| Food and Beverage | $3008 |
Studies
Graduated in 1992
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Questions & Answers
What conditions does Dr. Majonel Ontanillas treat?
Dr. Majonel Ontanillas provides treatment for Abdominal Pain, Arthritis, Edema, Gastroesophageal Reflux Disease (GERD), Influenza, Urinary Tract Infection (UTI). For the full list see this list.
Where can you meet with Dr. Majonel Ontanillas?
Dr. Majonel Ontanillas's office is located at 2704 North Tenaya Way in Las Vegas, NV 89128.
Does Dr. Majonel Ontanillas have affiliation with practices?
Dr. Majonel Ontanillas is affiliated with Southwest Medical Associates. For the full list of practices see this list.