Michael Kowalczyk, DO
NPI 1649277211 · Internal Medicine Physician · Lansing, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Kowalczyk, DO is a Internal Medicine Physician provider in Lansing, MI (NPI 1649277211).
Provider details
- NPI number
- 1649277211
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- MK010436 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,531 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 289 | $79 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 202 | $125 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 180 | $38 |
| Calculation of Trabecular Bone Score (tbs) Using Imaging Data With Interpretation and Report on Fracture Risk77089 | 176 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 130 | $90 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 178 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 516 | 192 |
| Losartan Potassium | 410 | 150 |
| Levothyroxine Sodium | 393 | 130 |
| Amlodipine Besylate | 378 | 136 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 363 | 86 |
| Metoprolol Succinate | 298 | 98 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$958 across 47 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-28
- Last updated
- 2025-03-18
- Certified
- 2025-03-18
Frequently asked questions
- What is Michael Kowalczyk's NPI number?
- Michael Kowalczyk's National Provider Identifier (NPI) is 1649277211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Kowalczyk's specialty?
- Michael Kowalczyk is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Kowalczyk located?
- Michael Kowalczyk's practice location on file with NPPES is 3955 Patient Care Dr Ste a, Lansing, MI 48911-4271.
- What is Michael Kowalczyk's phone number?
- The practice phone number listed in the NPPES registry for Michael Kowalczyk is (517) 374-7600.
- Does Michael Kowalczyk accept Medicare?
- Michael Kowalczyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Kowalczyk's NPI active?
- Yes — Michael Kowalczyk's NPI (1649277211) is active in the NPPES registry as of the last update on 2025-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.