Diana Li, OD
NPI 1164900700 · Optometrist · Rockford, IL
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Li, OD is a Optometrist provider in Rockford, IL (NPI 1164900700).
Provider details
- NPI number
- 1164900700
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 046011208 (IL)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$350 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1200 W State StRockford, IL 61102-2112Phone: (815) 397-5959
- 1002 N Pierpont AveRockford, IL 61101-5085Phone: (815) 397-5959
Registry dates
- Enumerated
- 2018-08-06
- Last updated
- 2018-08-06
Frequently asked questions
- What is Diana Li's NPI number?
- Diana Li's National Provider Identifier (NPI) is 1164900700, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Li's specialty?
- Diana Li is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Diana Li located?
- Diana Li's practice location on file with NPPES is 1603 N Alpine Rd Ste 121, Rockford, IL 61107-1439.
- What is Diana Li's phone number?
- The practice phone number listed in the NPPES registry for Diana Li is (815) 397-5959.
- Does Diana Li accept Medicare?
- Diana Li is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Li's NPI active?
- Yes — Diana Li's NPI (1164900700) is active in the NPPES registry as of the last update on 2018-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.