Dr. Christopher Mahr, MD
- Medicare services, 2024
- 16,141
- Medicare patients, 2024
- 634
- Part D claims, 2024
- 348
- MIPS score, 2024
- 81
- Hospital affiliations
- 2
- Practice address
- 900 Rand Rd, Des Plaines, IL 60016
- Practice phone
- Call (847) 324-3090
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ibji Oak, LLC
Des Plaines, Illinois
Find Dr. Mahr'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. Christopher Mahr is an orthopedic surgeon in Des Plaines, Illinois
Dr. Mahr practices at Ibji Oak, LLC in Des Plaines, Illinois.
Dr. Mahr's NPI, 1548242134, was assigned on November 18, 2005. Dr. Mahr graduated from Northwestern University Feinberg Medical School in 1992. Dr. Mahr holds Illinois license 036-100802.
- NPI
- 1548242134NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113096090
- NPI enumeration date
- November 18, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 324-3090
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Mahr practices at Ibji Oak, LLC in Des Plaines, Illinois
Dr. Mahr's primary practice is Ibji Oak, LLC, at 900 Rand Rd, Des Plaines, IL 60016 in Cook County. The practice phone is (847) 324-3090.
- Ibji Oak, LLC900 Rand Rd, Des Plaines, IL 60016 · Cook CountyPhone(847) 324-3090
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher Mahr is affiliated with 6 sites of care and 1 medical group
Dr. Mahr's primary practice is Ibji Oak, LLC in Des Plaines, Illinois. Dr. Mahr is also affiliated with Advocate Lutheran General Hospital. The medical group on file is Illinois Bone & Joint Institute. Dmand AI also links Dr. Mahr to 1 more hospital, 2 home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christopher Mahr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahr practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ibji Oak, LLC | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Mahr is one of 849 orthopedic surgeons in Illinois
Orthopaedic surgery is Dr. Mahr's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Mahr is licensed in Illinois.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
Orthopedic surgeons near Dr. Mahr
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. Christopher Mahr billed Medicare for 16,141 services in 2024
CMS data shows 16,141 Medicare services from Dr. Mahr across 29 procedure codes in 2024, for 634 Medicare patients. Medicare paid $180,199 for them.
Dr. Mahr's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 4722024: 14,0202870%
- Office and hospital visits
- 2023: 8732024: 873No change
- Imaging
- 2023: 7762024: 8185%
- Surgery
- 2023: 4362024: 4301%
Where Dr. Mahr's Medicare services took place, 2024
- In an office15,95899%
- In a facility1831%
Dr. Mahr compared with the Illinois median for orthopedic surgeons, 2024
- Dr. Mahr
- Illinois median
- Medicare services
- 16,141vs 1,25012.9 times
- Medicare patients
- 634vs 2962.1 times
- Part D claims
- 306vs 1202.5 times
Medians across 741 orthopedic surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Mahr'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mahr and other orthopedic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Mahr treated 634 Medicare patients in 2024, average age 77
CMS counts 634 Medicare patients who saw Dr. Mahr in 2024. The largest group is 75 to 84, with 241 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mahr's median patient age at 67, with 55% women.
Dr. Mahr's Medicare patients by age, 2024
Dr. Mahr's Medicare patients by sex, 2024
- Women41265%
- Men22235%
Chronic conditions among Dr. Mahr's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Heart failure34%
- Ischemic heart disease34%
- Diabetes32%
- Mood disorders29%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mahr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Mahr wrote 348 Medicare Part D claims in 2024
In 2024, Dr. Mahr wrote 348 Medicare Part D claims for 165 patients. 100% of them were for generic drugs. CMS names the drug for 306 of them, across 5 drugs with 11 or more claims each, at $1,143 in total drug cost. In 2023, CMS named 266 claims across 5 drugs.
Dr. Mahr's Part D claims by kind of drug, 2024
- Generic347 claims100%
- Brand-name and other1 claims0%
Dr. Mahr'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. Mahr's Part D claims, 2024
- Opioids17%59 of 348 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: 2662024: 30615%
Drugs named by CMS: 5 in 2024, 5 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. Christopher Mahr scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Mahr for performance year 2024, reported as part of a group. Dr. Mahr accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of hip replacement by Dr. Mahr, more than 60% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Mahr's MIPS scores, performance year 2024
- 81of 100Final score
- 76.5of 100Quality
- 83of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mahr ranks in Medicare procedure volume
- Knee replacement
- 48th percentile17 procedures
- Hip replacement
- 60th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper limb (arm) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
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. Christopher Mahr received $437 in industry payments from 2016 to 2025
CMS Open Payments shows 15 general payments to Dr. Mahr from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $116.
General payments to Dr. Mahr by program year, 2016 to 2025
Companies that paid Dr. Mahr 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. Christopher Mahr graduated from Northwestern University Feinberg Medical School
Dr. Mahr graduated from Northwestern University Feinberg Medical School in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher Mahr'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Christopher Mahr
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. Christopher Mahr's NPI number?
Dr. Christopher Mahr's NPI number is 1548242134. It was assigned on November 18, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Mahr?
Dr. Christopher Mahr is an orthopedic surgeon in Des Plaines, Illinois. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Christopher Mahr practice?
Dr. Mahr practices at 900 Rand Rd, Des Plaines, IL 60016. Dr. Mahr's primary practice is Ibji Oak, LLC in Des Plaines, Illinois. Dmand AI also links Dr. Mahr to 1 hospital, 2 home health agencies and 1 group practice or clinic.
What is Dr. Christopher Mahr's office phone number?
The practice phone on file for Dr. Mahr is (847) 324-3090.
What is Dr. Christopher Mahr's medical license number?
Dr. Mahr holds Illinois license 036-100802.
Which hospitals is Dr. Christopher Mahr affiliated with?
Dr. Mahr is affiliated with Advocate Lutheran General Hospital. Dmand AI links Dr. Mahr to 1 more hospital.
What medical group is Dr. Christopher Mahr part of?
Dr. Mahr is linked to Illinois Bone & Joint Institute.
Does Dr. Christopher Mahr accept Medicare?
Yes. CMS data shows Dr. Mahr billed Medicare for 16,141 services in 2024, and Dr. Mahr accepts Medicare assignment.
What is Dr. Christopher Mahr's MIPS score?
Dr. Mahr's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Christopher Mahr see?
CMS counts 634 Medicare patients who saw Dr. Mahr in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Christopher Mahr bill to Medicare?
In 2024, Dr. Mahr's most billed Medicare services were injected or infused drug (J1010), surgery: bones and joints (20610) and office visit, established patient (99213).
Where did Dr. Christopher Mahr go to medical school?
Dr. Mahr graduated from Northwestern University Feinberg Medical School in 1992.
What drugs does Dr. Christopher Mahr prescribe most?
In 2024 Medicare Part D data, Dr. Mahr's most prescribed drugs by claims were Meloxicam, Methylprednisolone and Tramadol HCl.
Has Dr. Christopher Mahr received payments from drug or device companies?
CMS Open Payments shows $437 in general payments to Dr. Mahr from 10 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Christopher Mahr been practicing?
Dr. Mahr graduated from medical school in 1992, 34 years ago.
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