Leo Gutt, M.D.
NPI 1801945480 · Internal Medicine Physician · Buffalo Grove, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Gutt, M.D. is a Internal Medicine Physician provider in Buffalo Grove, IL (NPI 1801945480).
Provider details
- NPI number
- 1801945480
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036070396 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 38 | 23 |
| Metformin Hcl | 32 | 17 |
| Amlodipine Besylate | 21 | 12 |
| Losartan Potassium | 16 | — |
| Paroxetine Hcl | 16 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 15 | 14 |
| Semaglutide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-10
- Last updated
- 2023-11-24
- Certified
- 2023-11-24
Frequently asked questions
- What is Leo Gutt's NPI number?
- Leo Gutt's National Provider Identifier (NPI) is 1801945480, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Gutt's specialty?
- Leo Gutt is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Gutt located?
- Leo Gutt's practice location on file with NPPES is 3011 Bayberry Dr, Buffalo Grove, IL 60089-6633.
- What is Leo Gutt's phone number?
- The practice phone number listed in the NPPES registry for Leo Gutt is (630) 542-7895.
- Does Leo Gutt accept Medicare?
- Leo Gutt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Gutt's NPI active?
- Yes — Leo Gutt's NPI (1801945480) is active in the NPPES registry as of the last update on 2023-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.