Stephen Koewler, MD
NPI 1467439844 · Internal Medicine Physician · Evansville, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Koewler, MD is a Internal Medicine Physician provider in Evansville, IN (NPI 1467439844).
Provider details
- NPI number
- 1467439844
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01036949A (IN)
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
1,819 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 814 | $87 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 421 | $126 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 359 | $122 |
| Administration of Influenza Virus VaccineG0008 | 107 | $30 |
| Administration of Pneumococcal VaccineG0009 | 68 | $30 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 31 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 150 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 808 | 221 |
| Rosuvastatin Calcium | 429 | 112 |
| Amlodipine Besylate | 376 | 104 |
| Levothyroxine Sodium | 360 | 100 |
| Lisinopril | 250 | 61 |
| Gabapentin | 246 | 59 |
| Meloxicam | 234 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-28
- Last updated
- 2022-07-11
- Certified
- 2022-07-11
Frequently asked questions
- What is Stephen Koewler's NPI number?
- Stephen Koewler's National Provider Identifier (NPI) is 1467439844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Koewler's specialty?
- Stephen Koewler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Koewler located?
- Stephen Koewler's practice location on file with NPPES is 3801 Bellemeade Ave, Evansville, IN 47714-0100.
- What is Stephen Koewler's phone number?
- The practice phone number listed in the NPPES registry for Stephen Koewler is (812) 485-1782.
- Does Stephen Koewler accept Medicare?
- Stephen Koewler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Koewler's NPI active?
- Yes — Stephen Koewler's NPI (1467439844) is active in the NPPES registry as of the last update on 2022-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.