Michael Flisak, MD
NPI 1427032267 · Diagnostic Radiology Physician · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Flisak, MD is a Diagnostic Radiology Physician provider in Oak Lawn, IL (NPI 1427032267).
Provider details
- NPI number
- 1427032267
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036057388 (IL)
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
1,602 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) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 475 | $26 |
| Screening Mammography77067 | 475 | $34 |
| X-Ray of Chest, 1 View71045 | 179 | $8 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 84 | $26 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 83 | $9 |
| Diagnostic Mammography of Both Breasts77066 | 57 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Tirzepatidebrand: Mounjaro | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-05
- Last updated
- 2015-04-03
Frequently asked questions
- What is Michael Flisak's NPI number?
- Michael Flisak's National Provider Identifier (NPI) is 1427032267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Flisak's specialty?
- Michael Flisak is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Flisak located?
- Michael Flisak's practice location on file with NPPES is 4440 W 95th St, Oak Lawn, IL 60453-2600.
- What is Michael Flisak's phone number?
- The practice phone number listed in the NPPES registry for Michael Flisak is (708) 684-5520.
- Does Michael Flisak accept Medicare?
- Michael Flisak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Flisak's NPI active?
- Yes — Michael Flisak's NPI (1427032267) is active in the NPPES registry as of the last update on 2015-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.