Dr. Robert S. Markus, MD
- Medicare services, 2024
- 8,329
- Medicare patients, 2024
- 292
- Part D claims, 2024
- 321
- Hospital affiliations
- 1
- Industry payments
- $34
- Practice address
- 1900 Silver Cross Blvd, New Lenox, IL 60451
- Practice phone
- Call (815) 300-1100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Markus' professional email, personal email and mobile number
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Dr. Robert S. Markus is an orthopedic surgeon in New Lenox, Illinois
Dr. Markus practices at Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers.
Dr. Markus' NPI, 1588629026, was assigned on April 18, 2006. Dr. Markus holds Illinois license 036074838.
- NPI
- 1588629026NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294724217
- NPI enumeration date
- April 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 300-1100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert S. Markus practices at Silver Cross Hospital in New Lenox, Illinois
Dr. Markus' primary practice is Silver Cross Hospital, at 1900 Silver Cross Blvd, New Lenox, IL 60451 in Will County. The practice phone is (815) 300-1100.
- Silver Cross Hospital1900 Silver Cross Blvd, New Lenox, IL 60451 · Will CountyPhone(815) 300-1100
Source: Dmand AI Affiliation Data
Dr. Robert S. Markus is affiliated with 2 sites of care and 2 medical groups
Dr. Markus' primary practice is Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers. The medical group on file is DuPage Medical Group. Dmand AI also links Dr. Markus to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert S. Markus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markus practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Silver Cross Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Silver Cross Hospital & Medical Centers and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert S. Markus is one of 849 orthopedic surgeons in Illinois
Orthopaedic surgery is Dr. Markus' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Markus is licensed in Illinois.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
Orthopedic surgeons near Dr. Markus
Counts of orthopedic surgeons 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. Robert S. Markus billed Medicare for 8,329 services in 2024
CMS data shows 8,329 Medicare services from Dr. Markus across 18 procedure codes in 2024, for 292 Medicare patients. Medicare paid $62,605 for them. Every service was in an office.
Dr. Markus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,2402024: 7,423499%
- Office and hospital visits
- 2023: 2922024: 43549%
- Imaging
- 2023: 1472024: 25271%
- Surgery
- 2023: 1832024: 21920%
Dr. Markus compared with the Illinois median for orthopedic surgeons, 2024
- Dr. Markus
- Illinois median
- Medicare services
- 8,329vs 1,2506.7 times
- Medicare patients
- 292vs 296Close to median
- Part D claims
- 282vs 1202.4 times
Medians across 741 orthopedic surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Markus' 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. Markus?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Markus and other orthopedic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert S. Markus treated 292 Medicare patients in 2024, average age 74
CMS counts 292 Medicare patients who saw Dr. Markus in 2024. The largest group is 65 to 74, with 144 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Markus' median patient age at 64, with 58% women.
Dr. Markus' Medicare patients by age, 2024
Dr. Markus' Medicare patients by sex, 2024
- Women18363%
- Men10937%
Chronic conditions among Dr. Markus' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis66%
- Anxiety29%
- Diabetes28%
- Chronic kidney disease26%
- Ischemic heart disease25%
- COPD21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Markus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert S. Markus wrote 321 Medicare Part D claims in 2024
In 2024, Dr. Markus wrote 321 Medicare Part D claims for 173 patients. 99% of them were for generic drugs. CMS names the drug for 282 of them, across 7 drugs with 11 or more claims each, at $1,715 in total drug cost. In 2023, CMS named 178 claims across 6 drugs.
Dr. Markus' Part D claims by kind of drug, 2024
- Generic319 claims99%
- Brand-name and other2 claims1%
Dr. Markus' 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. Markus' Part D claims, 2024
- Opioids37%120 of 321 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: 1782024: 28258%
Drugs named by CMS: 7 in 2024, 6 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
How Dr. Robert S. Markus takes part in Medicare
Dr. Markus accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert S. Markus received $34 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Markus from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $19.
General payments to Dr. Markus by program year, 2022 to 2023
Companies that paid Dr. Markus the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert S. Markus'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 DataDmand AI Org Hierarchy 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Robert S. Markus
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. Robert S. Markus' NPI number?
Dr. Robert S. Markus' NPI number is 1588629026. It was assigned on April 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert S. Markus?
Dr. Robert S. Markus is an orthopedic surgeon in New Lenox, Illinois. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Robert S. Markus practice?
Dr. Markus practices at 1900 Silver Cross Blvd, New Lenox, IL 60451. Dr. Markus' primary practice is Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers. Dmand AI also links Dr. Markus to 1 group practice or clinic and 1 medical group.
What is Dr. Robert S. Markus' office phone number?
The practice phone on file for Dr. Markus is (815) 300-1100.
What is Dr. Robert S. Markus' medical license number?
Dr. Markus holds Illinois license 036074838.
Which hospitals is Dr. Robert S. Markus affiliated with?
Dr. Markus practices at Silver Cross Hospital in New Lenox, Illinois.
What medical group is Dr. Robert S. Markus part of?
Dr. Markus is linked to DuPage Medical Group. Dmand AI links Dr. Markus to 1 more medical group.
Does Dr. Robert S. Markus accept Medicare?
Yes. CMS data shows Dr. Markus billed Medicare for 8,329 services in 2024, and Dr. Markus accepts Medicare assignment.
How many Medicare patients does Dr. Robert S. Markus see?
CMS counts 292 Medicare patients who saw Dr. Markus in 2024, with an average age of 74.
What services does Dr. Robert S. Markus bill to Medicare?
In 2024, Dr. Markus' most billed Medicare services were injected or infused drug (J1010), injected or infused drug (J7318) and surgery: bones and joints (20610).
Show 3 more questionsShow fewer questions
What drugs does Dr. Robert S. Markus prescribe most?
In 2024 Medicare Part D data, Dr. Markus' most prescribed drugs by claims were Methylprednisolone, Tramadol HCl and Tramadol HCl-Acetaminophen.
Has Dr. Robert S. Markus received payments from drug or device companies?
CMS Open Payments shows $34 in general payments to Dr. Markus from 2 companies from 2022 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Robert S. Markus been practicing?
Dr. Markus graduated from medical school in 1985, 41 years ago.
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