What is Leonard Randazzo's NPI number?

Leonard Randazzo's National Provider Identifier (NPI) is 1508906868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Leonard Randazzo's specialty?

Leonard Randazzo is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Leonard Randazzo located?

Leonard Randazzo's practice location on file with NPPES is 4135 N Harlem Ave, Norridge, IL 60706-1211.

What is Leonard Randazzo's phone number?

The practice phone number listed in the NPPES registry for Leonard Randazzo is (708) 457-1113.

Does Leonard Randazzo accept Medicare?

Leonard Randazzo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Leonard Randazzo's NPI active?

Yes — Leonard Randazzo's NPI (1508906868) is active in the NPPES registry as of the last update on 2017-09-13.

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Leonard Randazzo, O.D.

NPI 1508906868 · Optometrist · Norridge, IL

Leonard Randazzo, O.D. is a Optometrist provider in Norridge, IL (NPI 1508906868).

Provider details

NPI number: 1508906868
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: O.D.
Sex: Male
Sole proprietor: Yes
License: 46008337 (IL)

Practice location

4135 N Harlem Ave

Norridge, IL 60706-1211

Phone: (708) 457-1113

Fax: (708) 457-8528

Street-level locationGet directions

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Mailing address

4135 N Harlem Ave

Norridge, IL 60706-1211

Specialties & taxonomies

OptometristPrimary152W00000XLicense 46008337 (IL)
Eye and Vision Services Providers

Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 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.

Enumerated: 2007-02-07
Last updated: 2017-09-13

Frequently asked questions

What is Leonard Randazzo's NPI number?: Leonard Randazzo's National Provider Identifier (NPI) is 1508906868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Leonard Randazzo's specialty?: Leonard Randazzo is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
Where is Leonard Randazzo located?: Leonard Randazzo's practice location on file with NPPES is 4135 N Harlem Ave, Norridge, IL 60706-1211.
What is Leonard Randazzo's phone number?: The practice phone number listed in the NPPES registry for Leonard Randazzo is (708) 457-1113.
Does Leonard Randazzo accept Medicare?: Leonard Randazzo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Leonard Randazzo's NPI active?: Yes — Leonard Randazzo's NPI (1508906868) is active in the NPPES registry as of the last update on 2017-09-13.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions