OrganizationActive
John Stelios Leventis
NPI 1669833539 · Internal Medicine Physician · Gurnee, IL
John Stelios Leventis is a Internal Medicine Physician organization in Gurnee, IL (NPI 1669833539).
Provider details
- NPI number
- 1669833539
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Leventis, Physician/Owner(847) 244-4446
- License
- 036089868 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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.
Practice location
35 Tower Ct Ste I
Gurnee, IL 60031-5712
Phone: (847) 244-4446
Fax: (847) 244-4445
Street-level locationGet directions
Mailing address
35 Tower Ct Ste I
Gurnee, IL 60031-5712
Registry dates
- Enumerated
- 2016-03-18
- Last updated
- 2016-03-18
Frequently asked questions
- What is John Stelios Leventis's NPI number?
- John Stelios Leventis's National Provider Identifier (NPI) is 1669833539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John Stelios Leventis?
- John Stelios Leventis is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Stelios Leventis located?
- John Stelios Leventis's practice location on file with NPPES is 35 Tower Ct Ste I, Gurnee, IL 60031-5712.
- What is John Stelios Leventis's phone number?
- The practice phone number listed in the NPPES registry for John Stelios Leventis is (847) 244-4446.
- Who is the authorized official for John Stelios Leventis?
- The authorized official listed on John Stelios Leventis's NPPES record is John Leventis, Physician/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John Stelios Leventis's NPI active?
- Yes — John Stelios Leventis's NPI (1669833539) is active in the NPPES registry as of the last update on 2016-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.