Mark G. Hamming
- Medicare services, 2024
- 4,525
- Medicare patients, 2024
- 643
- Part D claims, 2024
- 256
- MIPS score, 2024
- 81
- Hospital affiliations
- 3
- Practice address
- 7126 N Lincoln Ave, Lincolnwood, IL 60712
- Practice phone
- Call (847) 864-6666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Midamerica Medical Associates
Lincolnwood, Illinois
Find Mark Hamming'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.
Mark G. Hamming is an orthopedic surgeon in Lincolnwood, Illinois
Mark Hamming practices at Midamerica Medical Associates in Lincolnwood, Illinois.
Mark Hamming's NPI, 1861653453, was assigned on June 17, 2008. Mark Hamming graduated from Rush Medical College of Rush University in 2008. Mark Hamming holds Illinois license 036-136089.
- NPI
- 1861653453NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527287747
- NPI enumeration date
- June 17, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 864-6666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark G. Hamming practices at Midamerica Medical Associates in Lincolnwood, Illinois
Mark Hamming's primary practice is Midamerica Medical Associates, at 7126 N Lincoln Ave, Lincolnwood, IL 60712 in Cook County. The practice phone is (847) 864-6666.
- Midamerica Medical Associates7126 N Lincoln Ave, Lincolnwood, IL 60712 · Cook CountyPhone(847) 864-6666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mark G. Hamming is affiliated with 6 sites of care and 1 medical group
Mark Hamming's primary practice is Midamerica Medical Associates in Lincolnwood, Illinois. Mark Hamming is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Illinois Bone & Joint Institute. Dmand AI also links Mark Hamming to 2 more hospitals, 1 group practice or clinic and 1 home health agency, 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 Mark G. Hamming's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Hamming practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Midamerica Medical Associates | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark G. Hamming is one of 849 orthopedic surgeons in Illinois
Orthopaedic surgery is Mark Hamming's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Mark Hamming is licensed in Illinois.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
Orthopedic surgeons near Mark Hamming
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
Mark G. Hamming billed Medicare for 4,525 services in 2024
CMS data shows 4,525 Medicare services from Mark Hamming across 23 procedure codes in 2024, for 643 Medicare patients. Medicare paid $266,602 for them.
Mark Hamming's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,3732024: 2,02715%
- Office and hospital visits
- 2023: 1,0862024: 95412%
- Imaging
- 2023: 9482024: 82513%
- Surgery
- 2023: 7682024: 7196%
- Other services
- 2023: 9912024: 0100%
Where Mark Hamming's Medicare services took place, 2024
- In an office4,46099%
- In a facility651%
Mark Hamming compared with the Illinois median for orthopedic surgeons, 2024
- Mark Hamming
- Illinois median
- Medicare services
- 4,525vs 1,2503.6 times
- Medicare patients
- 643vs 2962.2 times
- Part D claims
- 236vs 12097% above
Medians across 741 orthopedic surgeons in Illinois with Dmand AI profiles that report each measure.
Mark Hamming'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 Mark Hamming?
Medicare shows one payer. Book a meeting to get commercial claims data for Mark Hamming and other orthopedic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mark G. Hamming treated 643 Medicare patients in 2024, average age 74
CMS counts 643 Medicare patients who saw Mark Hamming in 2024. The largest group is 65 to 74, with 311 patients. 75% of them have arthritis, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Hamming's median patient age at 62, with 57% women.
Mark Hamming's Medicare patients by age, 2024
Mark Hamming's Medicare patients by sex, 2024
- Women40964%
- Men23436%
Chronic conditions among Mark Hamming's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure72%
- Diabetes27%
- Ischemic heart disease23%
- Osteoporosis22%
- Anxiety21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Mark Hamming's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark G. Hamming wrote 256 Medicare Part D claims in 2024
In 2024, Mark Hamming wrote 256 Medicare Part D claims for 154 patients. 99% of them were for generic drugs. CMS names the drug for 236 of them, across 8 drugs with 11 or more claims each, at $1,041 in total drug cost. In 2023, CMS named 226 claims across 5 drugs.
Mark Hamming's Part D claims by kind of drug, 2024
- Generic254 claims99%
- Brand-name and other2 claims1%
Mark Hamming'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 Mark Hamming's Part D claims, 2024
- Opioids21%54 of 256 claims
- Antibiotics24%62 of 256 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: 2262024: 2364%
Drugs named by CMS: 8 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
Mark G. Hamming 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 Mark Hamming for performance year 2024, reported as part of a group. Mark Hamming accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Mark Hamming, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Mark Hamming'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 Mark Hamming ranks in Medicare procedure volume
- Hip replacement
- 82nd percentile39 procedures
- Knee replacement
- 67th percentile33 procedures
- Lower limb (leg) arthroscopy (minimally invasive joint repair)
- 92nd percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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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Mark G. Hamming received $21,265 in industry payments from 2016 to 2025
CMS Open Payments shows 85 general payments to Mark Hamming from 20 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 74% of the total. Stryker Corporation paid the most, $17,593.
General payments to Mark Hamming by program year, 2016 to 2025
General payments to Mark Hamming by kind, 2016 to 2025
- Consulting fees$15,80074%
- Food and beverage$2,69613%
- Travel and lodging$2,57512%
- Education$1951%
Companies that paid Mark Hamming the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark G. Hamming graduated from Rush Medical College of Rush University
Mark Hamming graduated from Rush Medical College of Rush University in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark G. Hamming'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 Mark G. Hamming
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark G. Hamming's NPI number?
Mark G. Hamming's NPI number is 1861653453. It was assigned on June 17, 2008, and it is active in the NPI Registry.
What does Mark G. Hamming specialize in?
Mark G. Hamming is an orthopedic surgeon in Lincolnwood, Illinois. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Mark G. Hamming practice?
Mark Hamming practices at 7126 N Lincoln Ave, Lincolnwood, IL 60712. Mark Hamming's primary practice is Midamerica Medical Associates in Lincolnwood, Illinois. Dmand AI also links Mark Hamming to 2 hospitals, 1 group practice or clinic and 1 home health agency.
What is Mark G. Hamming's office phone number?
The practice phone on file for Mark Hamming is (847) 864-6666.
What is Mark G. Hamming's medical license number?
Mark Hamming holds Illinois license 036-136089.
Which hospitals is Mark G. Hamming affiliated with?
Mark Hamming is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. Dmand AI links Mark Hamming to 2 more hospitals.
What medical group is Mark G. Hamming part of?
Mark Hamming is linked to Illinois Bone & Joint Institute.
Does Mark G. Hamming accept Medicare?
Yes. CMS data shows Mark Hamming billed Medicare for 4,525 services in 2024, and Mark Hamming accepts Medicare assignment.
What is Mark G. Hamming's MIPS score?
Mark Hamming's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Mark G. Hamming see?
CMS counts 643 Medicare patients who saw Mark Hamming in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Mark G. Hamming bill to Medicare?
In 2024, Mark Hamming's most billed Medicare services were injected or infused drug (J0702), surgery: bones and joints (20610) and office visit, established patient (99213).
Where did Mark G. Hamming go to medical school?
Mark Hamming graduated from Rush Medical College of Rush University in 2008.
What drugs does Mark G. Hamming prescribe most?
In 2024 Medicare Part D data, Mark Hamming's most prescribed drugs by claims were Meloxicam, Amoxicillin and Oxycodone HCl.
Has Mark G. Hamming received payments from drug or device companies?
CMS Open Payments shows $21,265 in general payments to Mark Hamming from 20 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Mark G. Hamming been practicing?
Mark Hamming graduated from medical school in 2008, 18 years ago.
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