Mario Ernesto Apontes Ruiz, M.D.
Hospitalist Physician · Reno, NV
Mario Ernesto Apontes Ruiz, M.D. is a hospitalist physician with a practice address in Reno, Nevada, and NPI 1942579008, issued on Dec 19, 2011. Check the license (Nevada 17011, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mario Ernesto Apontes Ruiz
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 17011 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1155 Mill St, Reno, NV 89502
- Phone
- (775) 982-7878
- Enumerated
- Dec 19, 2011
- Record last updated
- May 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (775) 982-4196
- Medicare enrollment
- Enrolled (PECOS I20170810002832); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 239 in Nevada → Look up another NPI →
Also registered at 1155 Mill St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janeen Abe, PHARMDAmbulatory Care Pharmacist1184266298
- David John Acierto, D.O.Internal Medicine Physician1447563622
- Rommel Adajar, MDInternal Medicine Physician1336168707
- Phyllis Ager, MDRadiation Oncology Physician1962405456
- Thomas Agney, M.D.Hospitalist Physician1558334706
- Ricardo Aguirre-Escobar, PHARMDPharmacist1942907472
Verify Mario Ernesto Apontes Ruiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 17011Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average hospitalist physician in 2024
454 Medicare Part D claims for 173 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass40 claims
- Omeprazole21 claims
- Oxycodone Hcl20 claims
- Albuterol Sulfate Hfa18 claims
- Prednisone17 claims
- Eliquis15 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.
Bills Medicare through one group practice
- Community Care Services LLCReno, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mario Ernesto Apontes Ruiz among 239 hospitalist physician records in Nevada
Mario Ernesto Apontes Ruiz, M.D. is one of 239 hospitalist physician records with a practice address in Nevada. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 40% of them.
- NPI issued2011 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2004 · median 2012 among the 191 with a school on file
- Record last updated2021 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Nevada
There are 239 hospitalist physician records in Nevada.
All 239 in Nevada → Every provider in Reno → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Thomas Agney, M.D.Reno, NV 895021558334706
- Gabriel Bou Merhi, MDReno, NV 895021518943687
- Leo Bunuel-Jordana, DOReno, NV 895021083683056
- Thomas Callister, M.D.Reno, NV 895021124011705
- Kimberly Cowen, M.D.Reno, NV 895021609859925
- Tom Herbert, MDReno, NV 895021295708345
- Levente Levai, MDReno, NV 895021558345314
- Eric Math, M.D.Reno, NV 895021053384552
Common questions
What is Mario Ernesto Apontes Ruiz, M.D.'s NPI number?
Mario Ernesto Apontes Ruiz, M.D.'s National Provider Identifier (NPI) is 1942579008, issued on Dec 19, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mario Ernesto Apontes Ruiz, M.D. located?
The NPPES record lists a practice address at 1155 Mill St, Reno, NV, 89502. Phone: (775) 982-7878. Providers update this record themselves, so call before visiting.
How can I verify Mario Ernesto Apontes Ruiz, M.D.'s license?
NPPES lists Nevada license number 17011, 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 Mario Ernesto Apontes Ruiz, M.D. prescribe under Medicare Part D?
In 2024, Mario Ernesto Apontes Ruiz, M.D. had 454 Medicare Part D claims for 173 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.