Dr. Eric Z. Nielsen, MD
- Medicare services, 2024
- 500
- Medicare patients, 2024
- 357
- Part D claims, 2024
- 89
- Hospital affiliations
- 1
- Industry payments
- $64
- Practice address
- 1155 Mill Street, Reno, NV 89502
- Practice phone
- Call (775) 982-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nielsen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Eric Z. Nielsen is an emergency medicine physician in Reno, Nevada
Dr. Nielsen practices at Renown Regional Medical Center in Reno, Nevada, part of Renown Health.
Dr. Nielsen's NPI, 1275745317, was assigned on May 3, 2007. Dr. Nielsen graduated from University of Nevada School of Medicine in 2004. Dr. Nielsen holds Nevada license 12635.
- NPI
- 1275745317NPI Registry (opens in a new tab)
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Practice phone
- (775) 982-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Eric Z. Nielsen practices at Renown Regional Medical Center in Reno, Nevada
Dr. Nielsen's primary practice is Renown Regional Medical Center, at 1155 Mill Street, Reno, NV 89502 in Washoe County. The practice phone is (775) 982-4100.
- Renown Regional Medical Center1155 Mill Street, Reno, NV 89502 · Washoe CountyPhone(775) 982-4100
Source: Dmand AI Affiliation Data
Dr. Eric Z. Nielsen is affiliated with 1 site of care and 1 medical group
Dr. Nielsen's primary practice is Renown Regional Medical Center in Reno, Nevada, part of Renown Health. The medical group on file is Western Emergency Physicians.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eric Z. Nielsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nielsen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Renown Regional Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Renown Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Eric Z. Nielsen is one of 554 emergency medicine physicians in Nevada
Emergency medicine is Dr. Nielsen's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Nielsen's licenses on file in 2 states: Nevada and Colorado.
Specialties and state licenses
- Emergency medicine, NevadaPrimary
- Student in an organized health care education/training program, Colorado
Emergency medicine physicians near Dr. Nielsen
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Eric Z. Nielsen billed Medicare for 500 services in 2024
CMS data shows 500 Medicare services from Dr. Nielsen across 4 procedure codes in 2024, for 357 Medicare patients. Medicare paid $46,120 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nielsen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3862024: 3578%
- Tests and treatments
- 2023: 1152024: 14324%
Dr. Nielsen compared with the Nevada median for emergency medicine physicians, 2024
- Dr. Nielsen
- Nevada median
- Medicare services
- 500vs 29868% above
- Medicare patients
- 357vs 27032% above
- Part D claims
- 11vs 5580% below
Medians across 539 emergency medicine physicians in Nevada with Dmand AI profiles that report each measure.
Dr. Nielsen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric Z. Nielsen treated 357 Medicare patients in 2024, average age 75
CMS counts 357 Medicare patients who saw Dr. Nielsen in 2024. The largest group is 75 to 84, with 130 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.97, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nielsen's median patient age at 47, with 49% women.
Dr. Nielsen's Medicare patients by age, 2024
Dr. Nielsen's Medicare patients by sex, 2024
- Women18452%
- Men17348%
Chronic conditions among Dr. Nielsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease39%
- Anxiety36%
- Mood disorders36%
- Atrial fibrillation35%
- Chronic kidney disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nielsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eric Z. Nielsen wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Nielsen wrote 89 Medicare Part D claims for 77 patients. 93% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $37 in total drug cost. In 2023, CMS named 20 claims across 1 drug.
Dr. Nielsen's Part D claims by kind of drug, 2024
- Generic83 claims93%
- Brand-name and other6 claims7%
Dr. Nielsen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nielsen's Part D claims, 2024
- Opioids17%15 of 89 claims
- Antibiotics35%31 of 89 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 202024: 1145%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Eric Z. Nielsen received $64 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Nielsen from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $49.
General payments to Dr. Nielsen by program year, 2022 to 2023
Companies that paid Dr. Nielsen the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eric Z. Nielsen graduated from University of Nevada School of Medicine
Dr. Nielsen graduated from University of Nevada School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eric Z. Nielsen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Eric Z. Nielsen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Eric Z. Nielsen's NPI number?
Dr. Eric Z. Nielsen's NPI number is 1275745317. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric Z. Nielsen?
Dr. Eric Z. Nielsen is an emergency medicine physician in Reno, Nevada. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Eric Z. Nielsen practice?
Dr. Nielsen practices at 1155 Mill Street, Reno, NV 89502. Dr. Nielsen's primary practice is Renown Regional Medical Center in Reno, Nevada, part of Renown Health.
What is Dr. Eric Z. Nielsen's office phone number?
The practice phone on file for Dr. Nielsen is (775) 982-4100.
What is Dr. Eric Z. Nielsen's medical license number?
Dr. Nielsen holds Nevada license 12635, one of the licenses on file in 2 states.
Which states has Dr. Eric Z. Nielsen been licensed in?
Dmand AI has state licenses on file for Dr. Nielsen in Nevada and Colorado.
Which hospitals is Dr. Eric Z. Nielsen affiliated with?
Dr. Nielsen practices at Renown Regional Medical Center in Reno, Nevada.
What medical group is Dr. Eric Z. Nielsen part of?
Dr. Nielsen is linked to Western Emergency Physicians.
Does Dr. Eric Z. Nielsen accept Medicare?
Yes. CMS data shows Dr. Nielsen billed Medicare for 500 services in 2024.
How many Medicare patients does Dr. Eric Z. Nielsen see?
CMS counts 357 Medicare patients who saw Dr. Nielsen in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Eric Z. Nielsen bill to Medicare?
In 2024, Dr. Nielsen's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. Eric Z. Nielsen go to medical school?
Dr. Nielsen graduated from University of Nevada School of Medicine in 2004.
What drugs does Dr. Eric Z. Nielsen prescribe most?
In 2024 Medicare Part D data, Dr. Nielsen's most prescribed drugs by claims were Cephalexin.
Has Dr. Eric Z. Nielsen received payments from drug or device companies?
CMS Open Payments shows $64 in general payments to Dr. Nielsen from 2 companies from 2022 to 2023. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Eric Z. Nielsen been practicing?
Dr. Nielsen graduated from medical school in 2004, 22 years ago.
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