Gregory Kruper, M.D.
NPI 1225263866 · Otolaryngology Physician · Gurnee, IL
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Kruper, M.D. is a Otolaryngology Physician provider in Gurnee, IL (NPI 1225263866).
Provider details
- NPI number
- 1225263866
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-134245 (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
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
971 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 | 398 | $87 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 197 | $108 |
| Removal of Impacted Ear Wax69210 | 183 | $47 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 66 | $180 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $122 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 51 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 90 | 51 |
| Prednisone | 85 | 78 |
| Azelastine Hcl | 62 | 39 |
| Pantoprazole Sodium | 58 | 37 |
| Ipratropium Bromide | 43 | 25 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 31 | 27 |
| Neomycin/Polymyxin B/Hydrocortbrand: Neomycin-Polymyxin-Hc | 31 |
Practice location
Mailing address
Additional practice locations (1)
- 1880 W Winchester Rd Ste 103Libertyville, IL 60048-5321Phone: (847) 367-5770
Registry dates
- Enumerated
- 2009-05-27
- Last updated
- 2025-03-05
- Certified
- 2025-03-05
Frequently asked questions
- What is Gregory Kruper's NPI number?
- Gregory Kruper's National Provider Identifier (NPI) is 1225263866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Kruper's specialty?
- Gregory Kruper is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Kruper located?
- Gregory Kruper's practice location on file with NPPES is 222 S Greenleaf St Ste 102, Gurnee, IL 60031-5705.
- What is Gregory Kruper's phone number?
- The practice phone number listed in the NPPES registry for Gregory Kruper is (847) 662-4442.
- Does Gregory Kruper accept Medicare?
- Gregory Kruper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Kruper's NPI active?
- Yes — Gregory Kruper's NPI (1225263866) is active in the NPPES registry as of the last update on 2025-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.