Dr. Michael J. Hejna, MD, PhD
- Medicare services, 2024
- 3,368
- Medicare patients, 2024
- 304
- Part D claims, 2024
- 338
- MIPS score, 2024
- 18
- Hospital affiliations
- 1
- Practice address
- 1111 E 87th St, Chicago, IL 60619
- Practice phone
- Call (312) 842-4600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Midland Orthopedic Associates
Chicago, Illinois
Find Dr. Hejna'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. Michael J. Hejna is an orthopedic surgeon in Chicago, Illinois
Dr. Hejna practices at Midland Orthopedic Associates in Chicago, Illinois.
Dr. Hejna's NPI, 1013913573, was assigned on June 21, 2005. Dr. Hejna holds Illinois license 036091139.
- NPI
- 1013913573NPI Registry (opens in a new tab)
- NPI enumeration date
- June 21, 2005
- NPI status
- Active
- Practice phone
- (312) 842-4600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Michael J. Hejna practices at Midland Orthopedic Associates in Chicago, Illinois
Dr. Hejna's primary practice is Midland Orthopedic Associates, at 1111 E 87th St, Chicago, IL 60619 in Cook County. The practice phone is (312) 842-4600.
- Midland Orthopedic Associates1111 E 87th St, Chicago, IL 60619 · Cook CountyPhone(312) 842-4600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael J. Hejna is affiliated with 4 sites of care and 2 medical groups
Dr. Hejna's primary practice is Midland Orthopedic Associates in Chicago, Illinois. Dr. Hejna is also affiliated with MacNeal Hospital. The medical group on file is Midland & Riverside Orthopedics. Dmand AI also links Dr. Hejna to 2 more group practices and clinics and 1 medical group, 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. Michael J. Hejna's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hejna practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Midland Orthopedic Associates | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Hejna is one of 849 orthopedic surgeons in Illinois
Orthopaedic surgery is Dr. Hejna's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Hejna is licensed in Illinois.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
Orthopedic surgeons near Dr. Hejna
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. Michael J. Hejna billed Medicare for 3,368 services in 2024
CMS data shows 3,368 Medicare services from Dr. Hejna across 15 procedure codes in 2024, for 304 Medicare patients. Medicare paid $148,241 for them.
Dr. Hejna's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,3972024: 2,11412%
- Office and hospital visits
- 2023: 6062024: 52314%
- Imaging
- 2023: 4902024: 41615%
- Surgery
- 2023: 3412024: 3158%
- Tests and treatments
- 2023: 3682024: 0100%
- Other services
- 2023: 1132024: 0100%
Where Dr. Hejna's Medicare services took place, 2024
- In an office3,30498%
- In a facility642%
Dr. Hejna compared with the Illinois median for orthopedic surgeons, 2024
- Dr. Hejna
- Illinois median
- Medicare services
- 3,368vs 1,2502.7 times
- Medicare patients
- 304vs 296Close to median
- Part D claims
- 274vs 1202.3 times
Medians across 741 orthopedic surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Hejna'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. Hejna and other orthopedic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Hejna treated 304 Medicare patients in 2024, average age 75
CMS counts 304 Medicare patients who saw Dr. Hejna in 2024. The largest group is 65 to 74, with 138 patients. 75% of them have arthritis, and 75% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hejna's median patient age at 70, with 63% women.
Dr. Hejna's Medicare patients by age, 2024
Dr. Hejna's Medicare patients by sex, 2024
- Women21571%
- Men8929%
Chronic conditions among Dr. Hejna's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes32%
- Ischemic heart disease26%
- Anxiety21%
- Mood disorders21%
- Osteoporosis21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hejna's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Hejna wrote 338 Medicare Part D claims in 2024
In 2024, Dr. Hejna wrote 338 Medicare Part D claims for 172 patients. 99% of them were for generic drugs. CMS names the drug for 274 of them, across 8 drugs with 11 or more claims each, at $6,187 in total drug cost. In 2023, CMS named 156 claims across 5 drugs.
Dr. Hejna's Part D claims by kind of drug, 2024
- Generic336 claims99%
- Brand-name and other2 claims1%
Dr. Hejna'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. Hejna's Part D claims, 2024
- Opioids14%49 of 338 claims
- Antibiotics5%16 of 338 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: 1562024: 27476%
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
Dr. Michael J. Hejna scored 18 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 18 out of 100 for Dr. Hejna for performance year 2024, reported individually.
Dr. Hejna's MIPS scores, performance year 2024
- 18of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 61of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Michael J. Hejna received $4,376 in industry payments from 2016 to 2025
CMS Open Payments shows 58 general payments to Dr. Hejna from 17 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 52% of the total. Stryker Corporation paid the most, $2,661.
General payments to Dr. Hejna by program year, 2016 to 2025
General payments to Dr. Hejna by kind, 2016 to 2025
- Travel and lodging$2,25952%
- Food and beverage$2,08048%
- Education$371%
Companies that paid Dr. Hejna the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael J. Hejna'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 | Clinician Public Reporting: Overall MIPS Performance (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. Michael J. Hejna
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. Michael J. Hejna's NPI number?
Dr. Michael J. Hejna's NPI number is 1013913573. It was assigned on June 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Hejna?
Dr. Michael J. Hejna is an orthopedic surgeon in Chicago, Illinois. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Michael J. Hejna practice?
Dr. Hejna practices at 1111 E 87th St, Chicago, IL 60619. Dr. Hejna's primary practice is Midland Orthopedic Associates in Chicago, Illinois. Dmand AI also links Dr. Hejna to 2 group practices and clinics and 1 medical group.
What is Dr. Michael J. Hejna's office phone number?
The practice phone on file for Dr. Hejna is (312) 842-4600.
What is Dr. Michael J. Hejna's medical license number?
Dr. Hejna holds Illinois license 036091139.
Which hospitals is Dr. Michael J. Hejna affiliated with?
Dr. Hejna is affiliated with MacNeal Hospital.
What medical group is Dr. Michael J. Hejna part of?
Dr. Hejna is linked to Midland & Riverside Orthopedics. Dmand AI links Dr. Hejna to 1 more medical group.
Does Dr. Michael J. Hejna accept Medicare?
Yes. CMS data shows Dr. Hejna billed Medicare for 3,368 services in 2024.
What is Dr. Michael J. Hejna's MIPS score?
Dr. Hejna's MIPS final score for performance year 2024 is 18 out of 100, reported individually.
How many Medicare patients does Dr. Michael J. Hejna see?
CMS counts 304 Medicare patients who saw Dr. Hejna in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Michael J. Hejna bill to Medicare?
In 2024, Dr. Hejna's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99213) and surgery: bones and joints (20610).
What drugs does Dr. Michael J. Hejna prescribe most?
In 2024 Medicare Part D data, Dr. Hejna's most prescribed drugs by claims were Etodolac, Celecoxib and Hydrocodone-Acetaminophen.
Has Dr. Michael J. Hejna received payments from drug or device companies?
CMS Open Payments shows $4,376 in general payments to Dr. Hejna from 17 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Michael J. Hejna been practicing?
Dr. Hejna graduated from medical school in 1990, 36 years ago.
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