Jeffrey Kowalski, MD
NPI 1811169550 · Family Medicine Physician · Elkhorn, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Kowalski, MD is a Family Medicine Physician provider in Elkhorn, WI (NPI 1811169550).
Provider details
- NPI number
- 1811169550
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 54448-20 (WI)
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
18 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
1,037 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 | 327 | $94 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 293 | $62 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 173 | $128 |
| 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 | 109 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 43 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 133 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 638 | 179 |
| Amlodipine Besylate | 440 | 117 |
| Omeprazole | 389 | 115 |
| Levothyroxine Sodium | 310 | 87 |
| Lisinopril | 289 | 84 |
| Losartan Potassium | 262 | 73 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-01
- Last updated
- 2013-07-09
Frequently asked questions
- What is Jeffrey Kowalski's NPI number?
- Jeffrey Kowalski's National Provider Identifier (NPI) is 1811169550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Kowalski's specialty?
- Jeffrey Kowalski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Kowalski located?
- Jeffrey Kowalski's practice location on file with NPPES is 839 N Wisconsin St, Elkhorn, WI 53121-4541.
- What is Jeffrey Kowalski's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Kowalski is (262) 741-1400.
- Does Jeffrey Kowalski accept Medicare?
- Jeffrey Kowalski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Kowalski's NPI active?
- Yes — Jeffrey Kowalski's NPI (1811169550) is active in the NPPES registry as of the last update on 2013-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.