Grassi Retina MD Sc
NPI 1598121113 · Retina Specialist (Ophthalmology) Physician · Naperville, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grassi Retina MD Sc is a Retina Specialist (Ophthalmology) Physician organization in Naperville, IL (NPI 1598121113).
Provider details
- NPI number
- 1598121113
- Entity type
- Organization
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Grassi, Owner(630) 995-3465
- License
- 036115845 (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
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
Mailing address
Registry dates
- Enumerated
- 2016-01-12
- Last updated
- 2017-07-11
Frequently asked questions
- What is Grassi Retina MD Sc's NPI number?
- Grassi Retina MD Sc's National Provider Identifier (NPI) is 1598121113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grassi Retina MD Sc?
- Grassi Retina MD Sc is classified in the NPPES registry as Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Grassi Retina MD Sc located?
- Grassi Retina MD Sc's practice location on file with NPPES is 1012 95th St, Naperville, IL 60564-5041.
- What is Grassi Retina MD Sc's phone number?
- The practice phone number listed in the NPPES registry for Grassi Retina MD Sc is (630) 995-3465.
- Does Grassi Retina MD Sc accept Medicare?
- Grassi Retina MD Sc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Grassi Retina MD Sc?
- The authorized official listed on Grassi Retina MD Sc's NPPES record is Michael Grassi, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grassi Retina MD Sc's NPI active?
- Yes — Grassi Retina MD Sc's NPI (1598121113) is active in the NPPES registry as of the last update on 2017-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.