David Kowalski, M.D.
NPI 1538194600 · Internal Medicine Physician · Effingham, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Kowalski, M.D. is a Internal Medicine Physician provider in Effingham, IL (NPI 1538194600).
Provider details
- NPI number
- 1538194600
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036089116 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
1,261 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 450 | $9 |
| Blood Test, Clotting Time85610 | 441 | $4 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 149 | $123 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 84 | $16 |
| Automated Urinalysis Test81003 | 58 | $2 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 185 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 679 | 164 |
| Lisinopril | 660 | 164 |
| Atorvastatin Calcium | 616 | 161 |
| Furosemide | 564 | 116 |
| Levothyroxine Sodium | 496 | 108 |
| Omeprazole | 412 | 115 |
| Losartan Potassium | 399 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2020-05-21
- Certified
- 2020-05-21
Frequently asked questions
- What is David Kowalski's NPI number?
- David Kowalski's National Provider Identifier (NPI) is 1538194600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Kowalski's specialty?
- David Kowalski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Kowalski located?
- David Kowalski's practice location on file with NPPES is 300 N Maple St, Effingham, IL 62401-2003.
- What is David Kowalski's phone number?
- The practice phone number listed in the NPPES registry for David Kowalski is (217) 342-4151.
- Does David Kowalski accept Medicare?
- David Kowalski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Kowalski's NPI active?
- Yes — David Kowalski's NPI (1538194600) is active in the NPPES registry as of the last update on 2020-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.