Grossnickle Eye Center, Inc.
NPI 1265436125 · Ophthalmology Physician · Warsaw, IN
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grossnickle Eye Center, Inc. is a Ophthalmology Physician organization in Warsaw, IN (NPI 1265436125).
Provider details
- NPI number
- 1265436125
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Matthew Ralstin, Owner(574) 269-2777
- License
- 50001530A (IN)
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
21 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
- 2005-06-09
- Last updated
- 2019-03-05
Frequently asked questions
- What is Grossnickle Eye Center, Inc.'s NPI number?
- Grossnickle Eye Center, Inc.'s National Provider Identifier (NPI) is 1265436125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grossnickle Eye Center, Inc.?
- Grossnickle Eye Center, Inc. is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Grossnickle Eye Center, Inc. located?
- Grossnickle Eye Center, Inc.'s practice location on file with NPPES is 2251 Dubois Dr, Warsaw, IN 46580-3212.
- What is Grossnickle Eye Center, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Grossnickle Eye Center, Inc. is (574) 269-2777.
- Does Grossnickle Eye Center, Inc. accept Medicare?
- Grossnickle Eye Center, Inc. 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 Grossnickle Eye Center, Inc.?
- The authorized official listed on Grossnickle Eye Center, Inc.'s NPPES record is Matthew Ralstin, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grossnickle Eye Center, Inc.'s NPI active?
- Yes — Grossnickle Eye Center, Inc.'s NPI (1265436125) is active in the NPPES registry as of the last update on 2019-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.