Ryan O'Neill, D.O.
Emergency Medicine Physician · Las Vegas, NV
Ryan O'Neill, D.O. is an emergency medicine physician with a practice address in Las Vegas, Nevada, and NPI 1104080175, issued on Jul 17, 2008. Check the license (Nevada DO1804, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ryan O'Neill
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- DO1804 NV
11593 ND
Self-reported in NPPES; status is on the state search - Practice location
- 500 N Rainbow Blvd, Las Vegas, NV 89107
- Phone
- (702) 259-1228
- Enumerated
- Jul 17, 2008
- Record last updated
- Feb 25, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160817001946); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 575 in Nevada → Look up another NPI →
Also registered at 500 N Rainbow Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Arcella, PA-CPhysician Assistant1962892711
- Gregory Barnes, PA-CMedical Physician Assistant1740722461
- Natalie Bohn, PA-CPhysician Assistant1669919577
- Darcie Bouchard, PA-CPhysician Assistant1285944769
- Jenifer Carvell, NP-CFamily Nurse Practitioner1326407768
- Jessie Crawford, PA-CPhysician Assistant1720409618
Verify Ryan O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license DO1804Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average emergency medicine physician in 2024
249 Medicare Part D claims for 181 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 33 claims were for opioids.
Most prescribed
- Cefuroxime38 claims
- Ondansetron Odt35 claims
- Oxycodone-Acetaminophen25 claims
- Prednisone23 claims
- Amoxicillin-Clavulanate Potass14 claims
- Doxycycline Hyclate14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 95.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Island Emergency Medical Services PCSchenecctady, NY
- North Shore-Lij Medical PCForest Hills, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan O'Neill among 575 emergency medicine physician records in Nevada
Ryan O'Neill, D.O. is one of 575 emergency medicine physician records with a practice address in Nevada. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 43% of them.
- NPI issued2008 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2008 · median 2014 among the 366 with a school on file
- Record last updated2014 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Nevada
There are 575 emergency medicine physician records in Nevada.
All 575 in Nevada → Every provider in Las Vegas → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brent Castle, D.O.Las Vegas, NV 891071750677399
- Georgina Grant, MDLas Vegas, NV 891071295294304
- Jessica Leduc, D.O.Las Vegas, NV 891071972709582
- Sean McLaughlin, MDLas Vegas, NV 891071528179298
- Christine Miyake, M.D.Las Vegas, NV 891071194833277
- Donald Reisch, MDLas Vegas, NV 891071730135534
- Lauren Sesi, M.D.Las Vegas, NV 891071053706838
- Tiffany Sigal, M.D.Las Vegas, NV 891071891080305
Common questions
What is Ryan O'Neill, D.O.'s NPI number?
Ryan O'Neill, D.O.'s National Provider Identifier (NPI) is 1104080175, issued on Jul 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ryan O'Neill, D.O. located?
The NPPES record lists a practice address at 500 N Rainbow Blvd, Las Vegas, NV, 89107. Phone: (702) 259-1228. Providers update this record themselves, so call before visiting.
How can I verify Ryan O'Neill, D.O.'s license?
NPPES lists Nevada license number DO1804, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan O'Neill, D.O. prescribe under Medicare Part D?
In 2024, Ryan O'Neill, D.O. had 249 Medicare Part D claims for 181 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Ryan O'Neill, D.O.'s MIPS final score?
The 2023 MIPS final score is 95.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.