Alexander Dennis
NPI 1538963285 · Ophthalmology Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Dennis is a Ophthalmology Physician provider in Chicago, IL (NPI 1538963285).
Provider details
- NPI number
- 1538963285
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 125.085436 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
Mailing address
Registry dates
- Enumerated
- 2025-04-02
- Last updated
- 2025-06-16
- Certified
- 2025-06-16
Frequently asked questions
- What is Alexander Dennis's NPI number?
- Alexander Dennis's National Provider Identifier (NPI) is 1538963285, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Dennis's specialty?
- Alexander Dennis is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Dennis located?
- Alexander Dennis's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-3055.
- What is Alexander Dennis's phone number?
- The practice phone number listed in the NPPES registry for Alexander Dennis is (312) 926-2000.
- Does Alexander Dennis accept Medicare?
- Alexander Dennis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Dennis's NPI active?
- Yes — Alexander Dennis's NPI (1538963285) is active in the NPPES registry as of the last update on 2025-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.