DR. MARK J BENJAMIN MD
NPI 1366433138
Ophthalmology in La Grange Highlands, IL
About Dr. Mark J Benjamin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK J BENJAMIN MD (NPI 1366433138) is an individual ophthalmology provider in La Grange Highlands, Illinois, licensed in Illinois (036095352) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Adventist La Grange Memorial Hospital, and is a graduate of R Franklin University Of Med & Sci/chicago Medical School (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mark J Benjamin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mark Benjamin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
La Grange Highlands, IL 60525
- Reassigned Medicare billing, Illinois enrollment
- 3 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventist La Grange Memorial Hospital
Acute Care Hospitals · La Grange, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60525 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LA GRANGE HIGHLANDS, IL 60525
LA GRANGE HIGHLANDS, IL 60525
LA GRANGE HIGHLANDS, IL 60525
LA GRANGE HIGHLANDS, IL 60525
LA GRANGE HIGHLANDS, IL 60525
LA GRANGE HIGHLANDS, IL 60525
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 Benjamin's NPI number?
The NPI number for Mark Benjamin is 1366433138. It was assigned to this individual provider in the NPPES registry on November 2, 2005.
Where is Mark Benjamin located?
Mark Benjamin practices at 5201 Willow Springs Rd Suite 450, La Grange Highlands, IL 60525. The listed phone number is (708) 354-2008.
What is Mark Benjamin's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Mark Benjamin enrolled in Medicare?
Yes. Mark Benjamin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mark Benjamin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Benjamin reassigns Medicare benefits to Benjamin Eye Care (La Grange Highlands, 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 Mark Benjamin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Benjamin affiliated with any hospitals?
According to CMS data, Mark Benjamin is affiliated with Adventist La Grange Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Mark Benjamin was last updated on February 25, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Mark J Benjamin, MD · NPI 1366433138
Ophthalmology physician in La Grange Highlands, Illinois. Individual provider, active in the CMS NPPES registry since November 2, 2005.
## Identity
- **NPI:** 1366433138 (Entity type: Individual)
- **Enumerated:** November 2, 2005
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 036095352 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5201 WILLOW SPRINGS RD, SUITE 450, La Grange Highlands, IL 60525-6537
- **Phone:** (708) 354-2008 · **Fax:** (708) 354-2092
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Benjamin Eye Care (NPI 1215087986, La Grange Highlands, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** R Franklin University Of Med & Sci/chicago Medical School, class of 1993
## Record status
- **NPPES last updated:** February 25, 2009
- **Other identifiers:** Other 1532015 (IL); Medicare NSC 1272400001 (IL); Medicare PIN 211282 (IL); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1366433138) · Data from the CMS NPPES public registry.