Physician Profile
Unclaimed ProfileAbout BENJAMIN
Mark J Benjamin, MD is a healthcare provider in La Grange Highlands, IL specialising in ophthalmology. Mark trained at R Franklin University of Med & Sci/Chicago Medical School, graduating in 1993.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Benjamin?
Dr. Benjamin is an ophthalmology in La Grange Highlands, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
What is Dr. Benjamin's address?
Dr. Benjamin is listed at 5201 WILLOW SPRINGS RD SUITE 450, La Grange Highlands, IL 60525. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Benjamin?
The number on file is (708) 354-2008. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Benjamin's NPI number?
Dr. Benjamin's National Provider Identifier is 1366433138. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Benjamin train?
Dr. Benjamin attended R Franklin University of Med & Sci/Chicago Medical School, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Benjamin been practising?
Dr. Benjamin has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Benjamin perform?
According to Medicare billing data, Dr. Benjamin performs procedures including removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; provides treatments such as established patient complete exam of visual system and established patient problem focused exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Benjamin confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Benjamin. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (708) 354-2008
- Email not available
Practice Locations
5201 WILLOW SPRINGS RD SUITE 450
La Grange Highlands, IL 60525
Procedures Most Often Billed to Medicare
1,423 services · 1,097 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
115 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
46 |
| Established patient complete exam of visual system | Treatment | 92014 |
534 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
299 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
119 |
| New patient complete exam of visual system | Treatment | 92004 |
65 |
| Exam of visual field with extended testing | Treatment | 92083 |
17 |
| New patient problem focused exam of visual system | Treatment | 92002 |
16 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
212 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other ophthalmology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at R Franklin University of Med & Sci/Chicago Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1993 at R Franklin University of Med & Sci/Chicago Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in IL who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.