Michael Anthony Nasiak, M.D.
Internal Medicine Physician · Las Vegas, NV
Michael Anthony Nasiak, M.D. is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1821076449, issued on Jan 4, 2006. Check the license (Nevada 8337, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Michael Anthony Nasiak
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 8337 NV
Self-reported in NPPES; status is on the state search - Practice location
- 5755 E Charleston Blvd, Las Vegas, NV 89142
- Phone
- (702) 383-6250
- Enumerated
- Jan 4, 2006
- Record last updated
- Jan 7, 2026
- Fax
- (702) 224-7194
- Medicaid IDs
- 002002827 NV
100500484 NV - Medicare enrollment
- Enrolled (PECOS I20100504000162); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,229 in Nevada → Look up another NPI →
Also registered at 5755 E Charleston Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Anthony Nasiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 8337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average internal medicine physician in 2024
9,189 Medicare Part D claims for 752 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 42 claims were for opioids.
Most prescribed
- Atorvastatin Calcium840 claims
- Amlodipine Besylate659 claims
- Metformin Hcl435 claims
- Losartan Potassium401 claims
- Albuterol Sulfate Hfa359 claims
- Lisinopril359 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
- University Medical Center OF Southern NevadaLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Anthony Nasiak among 1,229 internal medicine physician records in Nevada
Michael Anthony Nasiak, M.D. is one of 1,229 internal medicine physician records with a practice address in Nevada. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2006 among the 772 with a school on file
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
716 internal medicine physician records list a practice address in Las Vegas
They are 716 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,229 internal medicine physician records in Nevada.
All 1,229 in Nevada → Every provider in Las Vegas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Debbie Edano, MDLas Vegas, NV 891421841507514
- Tanveer Akbar, MDLas Vegas, NV 891411558364596
- Carolyn Matzinger, M.D.Las Vegas, NV 891411447252911
- Raul Mendez, MDLas Vegas, NV 891411255304739
- Ferdinand Tan, MDLas Vegas, NV 891411265479034
- Aisha Tanveer, MDLas Vegas, NV 891411760431738
- Vinay Bararia, M.D.Las Vegas, NV 891441679679096
- Thomas Chen, M.D.Las Vegas, NV 891441992875538
Common questions
What is Michael Anthony Nasiak, M.D.'s NPI number?
Michael Anthony Nasiak, M.D.'s National Provider Identifier (NPI) is 1821076449, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Anthony Nasiak, M.D. located?
The NPPES record lists a practice address at 5755 E Charleston Blvd, Las Vegas, NV, 89142. Phone: (702) 383-6250. Providers update this record themselves, so call before visiting.
How can I verify Michael Anthony Nasiak, M.D.'s license?
NPPES lists Nevada license number 8337, 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 Michael Anthony Nasiak, M.D. prescribe under Medicare Part D?
In 2024, Michael Anthony Nasiak, M.D. had 9,189 Medicare Part D claims for 752 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.