Doctor profile · Federal record
Dr. Majonel Ontanillas, MD
Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Las Vegas, NV
- NPI 1235105313
- Accepts Medicare
- 34 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2704 N Tenaya Way
Las Vegas, NV 891280424
(702) 243-8500
fax (702) 242-4194 - Mailing address
-
Po Box 35380
Las Vegas, NV 891335380
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- November 18, 2024
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Nevada #12413 · Massachusetts #223130
- Medicaid (2)
- MA #2091283 · NV #1235105313
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235105313. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
83
Distinct HCPCS
2
Medicare allowed
$9,608
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 63 | 46 | $124 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 20 | 19 | $90 |
In context: peer comparison
Among 194 peers in Las Vegas Internal Medicine Physician, average services per provider: 170. This provider delivers 0.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
5,493
Patients
1,824
Total drug cost
$89,138
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 1,131 | 378 | $15,544 |
| Amlodipine Besylate | Generic | 571 | 195 | $3,254 |
| Lisinopril | Generic | 496 | 154 | $4,516 |
| Losartan Potassium | Generic | 476 | 151 | $8,990 |
| Levothyroxine Sodium | Generic | 474 | 138 | $10,171 |
| Omeprazole | Generic | 333 | 123 | $5,851 |
| Metformin Hcl | Generic | 305 | 98 | $4,028 |
| Tamsulosin Hcl | Generic | 244 | 79 | $6,332 |
| Simvastatin | Generic | 242 | 84 | $3,312 |
| Rosuvastatin Calcium | Generic | 239 | 80 | $3,774 |
Frequently asked questions
What is Dr. Majonel Ontanillas's medical specialty?
Dr. Majonel Ontanillas practices Internal Medicine Physician in Las Vegas, NV.
Where does Dr. Majonel Ontanillas practice?
Dr. Majonel Ontanillas practices at 2704 N Tenaya Way, Las Vegas, NV 891280424. Office phone: 7022438500.
What is Dr. Majonel Ontanillas's NPI?
Dr. Majonel Ontanillas's National Provider Identifier (NPI) is 1235105313, issued by NPPES.
Does Dr. Majonel Ontanillas accept Medicare assignment?
Yes. Dr. Majonel Ontanillas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Majonel Ontanillas commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.