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MARK FRITZ MD LTD
NPI 1386634525
Ophthalmology in Joliet, IL

Active since October 27, 2005
212 N LARKIN AVE, JOLIET, IL 60435(815) 741-0666(815) 741-0649 Get Directions Write a Review

NPPES record last updated: June 24, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mark Fritz Md Ltd NPPES

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

MARK FRITZ MD LTD (NPI 1386634525) is a healthcare organization registered as an ophthalmology in Joliet, Illinois and active in the NPI registry since October 2005. The organization lists Mark J Fritz, Owner, as its authorized official.

NPPES Registry Identity

NPI1386634525
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameMARK FRITZ MD LTD
Location Address212 N LARKIN AVEJoliet, IL 60435-6604
Mailing Address212 N Larkin AveJoliet, IL 60435-6604 · (815) 741-0666 · Fax (815) 741-0649
Phone(815) 741-0666
Fax(815) 741-0649
Organization SubpartNo
Authorized OfficialMark J FritzOwner · (815) 741-0666
Enumeration DateOctober 27, 2005
Last NPPES UpdateJune 24, 2008
✔ NPI 1386634525 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in IL · 36099618✔ Licensed in WI · 37999020
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
212 N LARKIN AVE, Joliet, IL 60435
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Other Identifiers 4

Medicare NSC4502860001IL
Medicaid036099618IL
Medicare ID-Type Unspecified200722
Medicare UPING92740

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Fritz Md Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mark Fritz MD Ltd, which bills Medicare for the services this clinician delivers.

Clinician (1)

Mark Fritz, M.D.
Ophthalmology
NPI 1669509550
212 N LARKIN AVE
Joliet, IL 60435
(815) 741-0666
✔ PECOS✔ Accepts MedicareSame address

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

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 Mark Fritz MD Ltd's NPI number?

The NPI number for Mark Fritz MD Ltd is 1386634525. It was assigned to this organization in the NPPES registry on October 27, 2005.

Where is Mark Fritz MD Ltd located?

Mark Fritz MD Ltd is located at 212 N Larkin Ave, Joliet, IL 60435. The listed phone number is (815) 741-0666.

What is Mark Fritz MD Ltd's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Mark Fritz MD Ltd enrolled in Medicare?

Yes. Mark Fritz MD Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mark Fritz MD Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Mark Fritz MD Ltd. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mark Fritz MD Ltd was last updated on June 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.