Dr. Nikolaos J. Tsiouris, MD
- Medicare services, 2024
- 3,075
- Medicare patients, 2024
- 1,031
- Part D claims, 2024
- 1,702
- Hospital affiliations
- 5
- Industry payments
- $21,418
- Practice address
- 700 Shadow Ln, Las Vegas, NV 89106
- Practice phone
- Call (702) 380-0809
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endoscopy Center of Southern Nevada, LLC
Las Vegas, Nevada
Find Dr. Tsiouris' 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. Nikolaos J. Tsiouris is a cardiologist in Las Vegas, Nevada
Dr. Tsiouris practices at Endoscopy Center of Southern Nevada, LLC in Las Vegas, Nevada.
Dr. Tsiouris' NPI, 1790789428, was assigned on June 10, 2005. Dr. Tsiouris holds Nevada license 11945.
- NPI
- 1790789428NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648275362
- NPI enumeration date
- June 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (702) 380-0809
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nikolaos J. Tsiouris practices at Endoscopy Center of Southern Nevada, LLC in Las Vegas, Nevada
Dr. Tsiouris' primary practice is Endoscopy Center of Southern Nevada, LLC, at 700 Shadow Ln, Las Vegas, NV 89106 in Clark County. The practice phone is (702) 380-0809.
- Endoscopy Center of Southern Nevada, LLC700 Shadow Ln, Las Vegas, NV 89106 · Clark CountyPhone(702) 380-0809
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nikolaos J. Tsiouris is affiliated with 7 sites of care and 1 medical group
Dr. Tsiouris' primary practice is Endoscopy Center of Southern Nevada, LLC in Las Vegas, Nevada. Dr. Tsiouris is also affiliated with Sunrise Hospital and Medical Center. The medical group on file is Heart Center of Nevada. Dmand AI also links Dr. Tsiouris to 4 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nikolaos J. Tsiouris' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsiouris practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endoscopy Center of Southern Nevada, LLC | Available with a free account |
| +6 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nikolaos J. Tsiouris is one of 147 cardiologists in Nevada
Cardiovascular disease is Dr. Tsiouris' primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Tsiouris is licensed in Nevada.
Specialties and state licenses
- Cardiovascular disease, NevadaPrimary
Cardiologists near Dr. Tsiouris
Counts of cardiologists 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. Nikolaos J. Tsiouris billed Medicare for 3,075 services in 2024
CMS data shows 3,075 Medicare services from Dr. Tsiouris across 28 procedure codes in 2024, for 1,031 Medicare patients. Medicare paid $232,510 for them.
Dr. Tsiouris' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,5552024: 2,42656%
- Office and hospital visits
- 2023: 4002024: 53333%
- Surgery
- 2023: 942024: 11623%
- Other services
- 2023: 802024: 0100%
Where Dr. Tsiouris' Medicare services took place, 2024
- In an office2,48181%
- In a facility59419%
Dr. Tsiouris compared with the Nevada median for cardiologists, 2024
- Dr. Tsiouris
- Nevada median
- Medicare services
- 3,075vs 2,74312% above
- Medicare patients
- 1,031vs 91413% above
- Part D claims
- 1,562vs 2,17328% below
Medians across 143 cardiologists in Nevada with Dmand AI profiles that report each measure.
Dr. Tsiouris' 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.
Need commercial claims for Dr. Tsiouris?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsiouris and other cardiologists in Nevada.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nikolaos J. Tsiouris treated 1,031 Medicare patients in 2024, average age 76
CMS counts 1,031 Medicare patients who saw Dr. Tsiouris in 2024. The largest group is 75 to 84, with 396 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 2.10, 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. Tsiouris' median patient age at 73, with 48% women.
Dr. Tsiouris' Medicare patients by age, 2024
Dr. Tsiouris' Medicare patients by sex, 2024
- Women48147%
- Men55053%
Chronic conditions among Dr. Tsiouris' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease56%
- Atrial fibrillation54%
- Heart failure53%
- Diabetes51%
- Arthritis49%
- Chronic kidney disease42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tsiouris' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nikolaos J. Tsiouris wrote 1,702 Medicare Part D claims in 2024
In 2024, Dr. Tsiouris wrote 1,702 Medicare Part D claims for 268 patients. 69% of them were for generic drugs. CMS names the drug for 1,562 of them, across 26 drugs with 11 or more claims each, at $528,482 in total drug cost. In 2023, CMS named 1,226 claims across 24 drugs.
Dr. Tsiouris' Part D claims by kind of drug, 2024
- Generic1,168 claims69%
- Brand-name534 claims31%
Dr. Tsiouris' 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. Tsiouris' Part D claims, 2024
- Antibiotics1%18 of 1,702 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: 1,2262024: 1,56227%
Drugs named by CMS: 26 in 2024, 24 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
Dr. Nikolaos J. Tsiouris ranks in the 98th percentile for pacemaker insertion or repair in Medicare
Dr. Tsiouris accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 94 procedures of pacemaker insertion or repair by Dr. Tsiouris, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Tsiouris ranks in Medicare procedure volume
- Pacemaker insertion or repair
- 98th percentile94 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nikolaos J. Tsiouris received $21,418 in industry payments from 2016 to 2025
CMS Open Payments shows 204 general payments to Dr. Tsiouris from 27 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 34% of the total. Biotronik Inc. paid the most, $9,482.
General payments to Dr. Tsiouris by program year, 2016 to 2025
General payments to Dr. Tsiouris by kind, 2016 to 2025
- Consulting fees$7,25034%
- Travel and lodging$6,68131%
- Food and beverage$4,13319%
- Compensation for serving as faculty or as a speaker for a medical education program$2,40011%
- Other$9544%
Companies that paid Dr. Tsiouris the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nikolaos J. Tsiouris'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Nikolaos J. Tsiouris
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. Nikolaos J. Tsiouris' NPI number?
Dr. Nikolaos J. Tsiouris' NPI number is 1790789428. It was assigned on June 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Nikolaos J. Tsiouris?
Dr. Nikolaos J. Tsiouris is a cardiologist in Las Vegas, Nevada. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Nikolaos J. Tsiouris practice?
Dr. Tsiouris practices at 700 Shadow Ln, Las Vegas, NV 89106. Dr. Tsiouris' primary practice is Endoscopy Center of Southern Nevada, LLC in Las Vegas, Nevada. Dmand AI also links Dr. Tsiouris to 4 hospitals and 1 group practice or clinic.
What is Dr. Nikolaos J. Tsiouris' office phone number?
The practice phone on file for Dr. Tsiouris is (702) 380-0809.
What is Dr. Nikolaos J. Tsiouris' medical license number?
Dr. Tsiouris holds Nevada license 11945.
Which hospitals is Dr. Nikolaos J. Tsiouris affiliated with?
Dr. Tsiouris is affiliated with Sunrise Hospital and Medical Center. Dmand AI links Dr. Tsiouris to 4 more hospitals.
What medical group is Dr. Nikolaos J. Tsiouris part of?
Dr. Tsiouris is linked to Heart Center of Nevada.
Does Dr. Nikolaos J. Tsiouris accept Medicare?
Yes. CMS data shows Dr. Tsiouris billed Medicare for 3,075 services in 2024, and Dr. Tsiouris accepts Medicare assignment.
How many Medicare patients does Dr. Nikolaos J. Tsiouris see?
CMS counts 1,031 Medicare patients who saw Dr. Tsiouris in 2024, with an average age of 76.
What services does Dr. Nikolaos J. Tsiouris bill to Medicare?
In 2024, Dr. Tsiouris' most billed Medicare services were heart test or procedure (93280), heart test or procedure (93296) and heart test or procedure (93298).
Show 3 more questionsShow fewer questions
What drugs does Dr. Nikolaos J. Tsiouris prescribe most?
In 2024 Medicare Part D data, Dr. Tsiouris' most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Entresto.
Has Dr. Nikolaos J. Tsiouris received payments from drug or device companies?
CMS Open Payments shows $21,418 in general payments to Dr. Tsiouris from 27 companies from 2016 to 2025. The largest total came from Biotronik Inc.
How long has Dr. Nikolaos J. Tsiouris been practicing?
Dr. Tsiouris graduated from medical school in 1995, 31 years ago.
Selling to cardiovascular disease practices?
See cardiologists in Nevada by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card