Dr. Mark J. Benjamin, MD
- Medicare services, 2024
- 1,423
- Medicare patients, 2024
- 758
- Part D claims, 2024
- 355
- Publications
- 1
- MIPS score, 2024
- 85
- Practice address
- 47 S 6th Ave, Lagrange, IL 60525
- Practice phone
- Call (708) 354-2008
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Benjamin Eye Care
Eye care practice · Lagrange, Illinois
Find Dr. Benjamin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark J. Benjamin is an ophthalmologist in Lagrange, Illinois
Dr. Benjamin practices at Benjamin Eye Care in Lagrange, Illinois.
Dr. Benjamin's NPI, 1366433138, was assigned on November 2, 2005. Dr. Benjamin graduated from R Franklin University of Med & Sci/Chicago Medical School in 1993. Dr. Benjamin holds Illinois license 036095352.
- NPI
- 1366433138NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799731394
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (708) 354-2008
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark J. Benjamin practices at Benjamin Eye Care in Lagrange, Illinois
Dr. Benjamin's primary practice is Benjamin Eye Care, at 47 S 6th Ave, Lagrange, IL 60525. The practice phone is (708) 354-2008.
- Benjamin Eye Care47 S 6th Ave, Lagrange, IL 60525Phone(708) 354-2008
Source: Dmand AI Affiliation Data
Dr. Mark J. Benjamin is affiliated with 2 sites of care and 1 medical group
Dr. Benjamin's primary practice is Benjamin Eye Care in Lagrange, Illinois. Dr. Benjamin is also affiliated with UChicago Medicine AdventHealth La Grange. Dmand AI also links Dr. Benjamin to 1 more medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark J. Benjamin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Benjamin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Benjamin Eye Care | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark J. Benjamin is one of 692 ophthalmologists in Illinois
Ophthalmology is Dr. Benjamin's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Benjamin is licensed in Illinois.
Specialties and state licenses
- Ophthalmology, IllinoisPrimary
Ophthalmologists near Dr. Benjamin
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark J. Benjamin billed Medicare for 1,423 services in 2024
CMS data shows 1,423 Medicare services from Dr. Benjamin across 9 procedure codes in 2024, for 758 Medicare patients. Medicare paid $149,868 for them.
Dr. Benjamin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,0622024: 1,0501%
- Office and hospital visits
- 2023: 2092024: 2121%
- Surgery
- 2023: 1632024: 1611%
Where Dr. Benjamin's Medicare services took place, 2024
- In an office1,26289%
- In a facility16111%
Dr. Benjamin compared with the Illinois median for ophthalmologists, 2024
- Dr. Benjamin
- Illinois median
- Medicare services
- 1,423vs 1,5448% below
- Medicare patients
- 758vs 57731% above
- Part D claims
- 258vs 58256% below
Medians across 710 ophthalmologists in Illinois with Dmand AI profiles that report each measure.
Dr. Benjamin's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Benjamin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Benjamin and other ophthalmologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark J. Benjamin treated 758 Medicare patients in 2024, average age 77
CMS counts 758 Medicare patients who saw Dr. Benjamin in 2024. The largest group is 75 to 84, with 330 patients. 75% of them have high cholesterol, and 71% have high blood pressure. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Benjamin's median patient age at 76, with 61% women.
Dr. Benjamin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Benjamin's Medicare patients by sex, 2024
- Women47062%
- Men28838%
Chronic conditions among Dr. Benjamin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis47%
- Ischemic heart disease28%
- Chronic kidney disease22%
- Diabetes21%
- Osteoporosis19%
- Anxiety18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Benjamin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark J. Benjamin wrote 355 Medicare Part D claims in 2024
In 2024, Dr. Benjamin wrote 355 Medicare Part D claims for 150 patients. 51% of them were for generic drugs. CMS names the drug for 258 of them, across 11 drugs with 11 or more claims each, at $22,364 in total drug cost. In 2023, CMS named 275 claims across 13 drugs.
Dr. Benjamin's Part D claims by kind of drug, 2024
- Generic182 claims51%
- Brand-name173 claims49%
Dr. Benjamin's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Benjamin's Part D claims, 2024
- Antibiotics8%29 of 355 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2752024: 2586%
Drugs named by CMS: 11 in 2024, 13 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mark J. Benjamin scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Benjamin for performance year 2024, reported individually. Dr. Benjamin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 160 procedures of cataract surgery by Dr. Benjamin, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Benjamin's MIPS scores, performance year 2024
- 85of 100Final score
- 71of 100Quality
- 40of 100Improvement Activities
- 89of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Benjamin ranks in Medicare procedure volume
- Cataract surgery
- 81st percentile160 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark J. Benjamin has 1 publication on record
Dmand AI links 1 paper to Dr. Benjamin in 2020. Dr. Benjamin's most frequent co-authors are Zeeshan U. Haq, Kamran Riaz, MD and Michael H. Zhang, MD.
Dr. Benjamin's most frequent co-authors
Recent publications by Dr. Benjamin
See who Dr. Benjamin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Benjamin works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark J. Benjamin received $118,906 in industry payments from 2016 to 2025
CMS Open Payments shows 220 general payments to Dr. Benjamin from 33 drug and device companies from 2016 to 2025. Debt forgiveness make up the largest share, 93% of the total. Optos, Inc. paid the most, $110,222.
General payments to Dr. Benjamin by program year, 2016 to 2025
General payments to Dr. Benjamin by kind, 2016 to 2025
- Debt forgiveness$110,16093%
- Food and beverage$7,2816%
- Device or supply loans$1,4271%
- Education$380%
Companies that paid Dr. Benjamin the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark J. Benjamin graduated from R Franklin University of Med & Sci/Chicago Medical School
Dr. Benjamin graduated from R Franklin University of Med & Sci/Chicago Medical School in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark J. Benjamin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark J. Benjamin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark J. Benjamin's NPI number?
Dr. Mark J. Benjamin's NPI number is 1366433138. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark J. Benjamin?
Dr. Mark J. Benjamin is an ophthalmologist in Lagrange, Illinois. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Mark J. Benjamin practice?
Dr. Benjamin practices at 47 S 6th Ave, Lagrange, IL 60525. Dr. Benjamin's primary practice is Benjamin Eye Care in Lagrange, Illinois. Dmand AI also links Dr. Benjamin to 1 medical group.
What is Dr. Mark J. Benjamin's office phone number?
The practice phone on file for Dr. Benjamin is (708) 354-2008.
What is Dr. Mark J. Benjamin's medical license number?
Dr. Benjamin holds Illinois license 036095352.
Which hospitals is Dr. Mark J. Benjamin affiliated with?
Dr. Benjamin is affiliated with UChicago Medicine AdventHealth La Grange.
Does Dr. Mark J. Benjamin accept Medicare?
Yes. CMS data shows Dr. Benjamin billed Medicare for 1,423 services in 2024, and Dr. Benjamin accepts Medicare assignment.
What is Dr. Mark J. Benjamin's MIPS score?
Dr. Benjamin's MIPS final score for performance year 2024 is 85 out of 100, reported individually.
How many Medicare patients does Dr. Mark J. Benjamin see?
CMS counts 758 Medicare patients who saw Dr. Benjamin in 2024, with an average age of 77.
What services does Dr. Mark J. Benjamin bill to Medicare?
In 2024, Dr. Benjamin's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and office visit, established patient (99212).
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Where did Dr. Mark J. Benjamin go to medical school?
Dr. Benjamin graduated from R Franklin University of Med & Sci/Chicago Medical School in 1993.
What drugs does Dr. Mark J. Benjamin prescribe most?
In 2024 Medicare Part D data, Dr. Benjamin's most prescribed drugs by claims were Latanoprost, Lotemax Sm and Prednisone.
Has Dr. Mark J. Benjamin received payments from drug or device companies?
CMS Open Payments shows $118,906 in general payments to Dr. Benjamin from 33 companies from 2016 to 2025. The largest total came from Optos, Inc.
How long has Dr. Mark J. Benjamin been practicing?
Dr. Benjamin graduated from medical school in 1993, 33 years ago.
Does Dr. Mark J. Benjamin do research?
Dmand AI links 1 publication to Dr. Benjamin.
Who does Dr. Mark J. Benjamin publish with?
Dr. Benjamin's most frequent co-authors are Zeeshan U. Haq (1 shared paper), Kamran Riaz, MD (1 shared paper) and Michael H. Zhang, MD (1 shared paper).
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