Eric Z. Nielsen, MD
Emergency Medicine Physician · Fallon, NV
Eric Z. Nielsen, MD is an emergency medicine physician with a practice address in Fallon, Nevada, and NPI 1275745317, issued on May 3, 2007. Check the license (Nevada 12635, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Eric Z. Nielsen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 12635 NV
1335 CO
Self-reported in NPPES; status is on the state search - Practice location
- 801 E Williams Ave, Fallon, NV 89406
- Phone
- (775) 423-3151
- Enumerated
- May 3, 2007
- Record last updated
- Mar 18, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (775) 423-2853
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 575 in Nevada → Look up another NPI →
Also registered at 801 E Williams Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eric Z. Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 12635Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average emergency medicine physician in 2024
89 Medicare Part D claims for 77 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Cephalexin11 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 MIPS final score for 2023 (Medicare payment program): 91.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Eric Z. Nielsen among 575 emergency medicine physician records in Nevada
Eric Z. Nielsen, MD 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 2007, is newer than 36% of them.
- NPI issued2007 · 36% of these records are older, 57% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2009 · 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 Fallon → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Melissa Coombs, M.D.Fallon, NV 894061043448558
- Alyssa Dennis, MDFallon, NV 894061134879455
- Charles Potter, MDFallon, NV 894061487705125
- Richard Haering, DOGardnerville, NV 894101194784397
- Elizabeth Muckerman, M.D.Gardnerville, NV 894101669479457
- Heidi Nelson, MDGardnerville, NV 894101609875871
- Alfred Phillips, MDMinden, NV 894231073503462
- Nita Schwartz, M.D.Minden, NV 894231861540882
Common questions
What is Eric Z. Nielsen, MD's NPI number?
Eric Z. Nielsen, MD's National Provider Identifier (NPI) is 1275745317, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Eric Z. Nielsen, MD located?
The NPPES record lists a practice address at 801 E Williams Ave, Fallon, NV, 89406. Phone: (775) 423-3151. Providers update this record themselves, so call before visiting.
How can I verify Eric Z. Nielsen, MD's license?
NPPES lists Nevada license number 12635, 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 Eric Z. Nielsen, MD prescribe under Medicare Part D?
In 2024, Eric Z. Nielsen, MD had 89 Medicare Part D claims for 77 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Eric Z. Nielsen, MD's MIPS final score?
The 2023 MIPS final score is 91.6 of 100. 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.