Michael Nasiak, M.D.
NPI 1821076449 · Internal Medicine Physician · Las Vegas, NV
Enrolled with Medicare as Practitioner - Medical Genetics and Genomics · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Nasiak, M.D. is a Internal Medicine Physician provider in Las Vegas, NV (NPI 1821076449).
Provider details
- NPI number
- 1821076449
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 8337 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
337 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 170 | $124 |
| Assessment of Emotional Or Behavioral Problems96127 | 61 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $89 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $177 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 15 | $6 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 127 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 840 | 296 |
| Amlodipine Besylate | 659 | 242 |
| Metformin Hcl | 435 | 159 |
| Losartan Potassium | 401 | 138 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 359 | 95 |
| Lisinopril | 359 | 125 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-04
- Last updated
- 2026-01-07
- Certified
- 2026-01-07
Frequently asked questions
- What is Michael Nasiak's NPI number?
- Michael Nasiak's National Provider Identifier (NPI) is 1821076449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Nasiak's specialty?
- Michael Nasiak is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Nasiak located?
- Michael Nasiak's practice location on file with NPPES is 5755 E Charleston Blvd, Las Vegas, NV 89142-1004.
- What is Michael Nasiak's phone number?
- The practice phone number listed in the NPPES registry for Michael Nasiak is (702) 383-6250.
- Does Michael Nasiak accept Medicare?
- Michael Nasiak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Nasiak's NPI active?
- Yes — Michael Nasiak's NPI (1821076449) is active in the NPPES registry as of the last update on 2026-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.