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CATHLEEN ANN CAVENDER O.D.
NPI 1811051659
Optometrist in Calumet City, IL

Active since December 19, 2006PECOS Enrolled
2 RIVEROAKS DR, RIVER OAKS SHOPPING CENTER, CALUMET CITY, IL 60409(708) 891-7076 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Cathleen Ann Cavender O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CATHLEEN ANN CAVENDER O.D. (NPI 1811051659) is an individual optometrist in Calumet City, Illinois and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811051659
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameCATHLEEN ANN CAVENDERCredential: O.D.
Location Address2 RIVEROAKS DR, RIVER OAKS SHOPPING CENTERCalumet City, IL 60409-1901
Mailing Address526 Willow Ln, Po Box 733Beecher, IL 60401 · (708) 946-2740
Phone(708) 891-7076
Sole ProprietorNo
Enumeration DateDecember 19, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1811051659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
2 RIVEROAKS DR, Calumet City, IL 60409
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Other Names 1

Other Name (5)Cathleen Ann Unruh

Other Identifiers 1

Medicare UPIN315146IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cathleen Ann Cavender O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Cathleen Cavender reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Visionworks, Inc.
34 mi
Optometrist
239 GOLF MILL CTR, STE 255
Niles, IL 60714
  • Reassigned Medicare billing, Illinois enrollment
  • 108 clinicians in this Medicare group
NPI 1831115906 (847) 297-2286

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60409 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cathleen Cavender's NPI number?

The NPI number for Cathleen Cavender is 1811051659. It was assigned to this individual provider in the NPPES registry on December 19, 2006. The provider is also known as Cathleen Ann Unruh.

Where is Cathleen Cavender located?

Cathleen Cavender practices at 2 Riveroaks Dr River Oaks Shopping Center, Calumet City, IL 60409. The listed phone number is (708) 891-7076.

What is Cathleen Cavender's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Cathleen Cavender enrolled in Medicare?

Yes. Cathleen Cavender is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Cathleen Cavender's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cathleen Cavender reassigns Medicare benefits to Visionworks, Inc. (Niles, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cathleen Cavender's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Cathleen Cavender was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.