Justin Kosirog
- Medicare services, 2024
- 534
- Medicare patients, 2024
- 357
- Part D claims, 2024
- 514
- MIPS score, 2024
- 84
- Hospital affiliations
- 4
- Practice address
- 745 Fletcher Dr, Elgin, IL 60123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Elgin Gastroenterology Endoscopy Center LLC - HOPD
Acute Care Hospital outpatient department · Elgin, Illinois
Find Justin Kosirog'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.
Justin Kosirog is a gastroenterologist in Elgin, Illinois
Justin Kosirog practices at Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois.
Justin Kosirog's NPI, 1255726238, was assigned on April 6, 2015. Justin Kosirog graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2015. Justin Kosirog holds Oklahoma license 35686.
- NPI
- 1255726238NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739499922
- NPI enumeration date
- April 6, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Justin Kosirog practices at Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois
Justin Kosirog's primary practice is Elgin Gastroenterology Endoscopy Center LLC - HOPD, at 745 Fletcher Dr, Elgin, IL 60123.
- Elgin Gastroenterology Endoscopy Center LLC - HOPD745 Fletcher Dr, Elgin, IL 60123
Source: Dmand AI Affiliation Data
Justin Kosirog is affiliated with 7 sites of care and 1 medical group
Justin Kosirog's primary practice is Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois. Justin Kosirog is also affiliated with Advocate Sherman Hospital. The medical group on file is GI Alliance of Illinois. Dmand AI also links Justin Kosirog to 3 more hospitals, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Justin Kosirog's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Justin Kosirog practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Elgin Gastroenterology Endoscopy Center LLC - HOPD | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Justin Kosirog is one of 771 gastroenterologists in Illinois
Gastroenterology is Justin Kosirog's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Justin Kosirog is licensed in Oklahoma.
Specialties and state licenses
- Gastroenterology, OklahomaPrimary
Gastroenterologists near Justin Kosirog
Counts of gastroenterologists 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
Justin Kosirog billed Medicare for 534 services in 2024
CMS data shows 534 Medicare services from Justin Kosirog across 8 procedure codes in 2024, for 357 Medicare patients. Medicare paid $49,998 for them.
Justin Kosirog's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2262024: 35055%
- Surgery
- 2023: 592024: 184212%
Where Justin Kosirog's Medicare services took place, 2024
- In an office11522%
- In a facility41978%
Justin Kosirog compared with the Illinois median for gastroenterologists, 2024
- Justin Kosirog
- Illinois median
- Medicare services
- 534vs 4987% above
- Medicare patients
- 357vs 30716% above
- Part D claims
- 416vs 37012% above
Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.
Justin Kosirog'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 Justin Kosirog?
Medicare shows one payer. Book a meeting to get commercial claims data for Justin Kosirog and other gastroenterologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Justin Kosirog treated 357 Medicare patients in 2024, average age 75
CMS counts 357 Medicare patients who saw Justin Kosirog in 2024. The largest group is 65 to 74, with 141 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.15, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Justin Kosirog's median patient age at 59, with 51% women.
Justin Kosirog's Medicare patients by age, 2024
Justin Kosirog's Medicare patients by sex, 2024
- Women20457%
- Men15343%
Chronic conditions among Justin Kosirog's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes42%
- Anxiety40%
- Chronic kidney disease39%
- Ischemic heart disease36%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Justin Kosirog's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Justin Kosirog wrote 514 Medicare Part D claims in 2024
In 2024, Justin Kosirog wrote 514 Medicare Part D claims for 242 patients. 79% of them were for generic drugs. CMS names the drug for 416 of them, across 8 drugs with 11 or more claims each, at $8,772 in total drug cost. In 2023, CMS named 57 claims across 3 drugs.
Justin Kosirog's Part D claims by kind of drug, 2024
- Generic405 claims79%
- Brand-name109 claims21%
Justin Kosirog'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 Justin Kosirog's Part D claims, 2024
- Antibiotics3%14 of 514 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: 572024: 416630%
Drugs named by CMS: 8 in 2024, 3 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
Justin Kosirog scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Justin Kosirog for performance year 2024, reported as part of a group. Justin Kosirog accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 87 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Justin Kosirog, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Justin Kosirog's MIPS scores, performance year 2024
- 84of 100Final score
- 67.6of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 81of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Justin Kosirog ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 74th percentile87 procedures
- Colonoscopy
- 74th percentile80 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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Justin Kosirog received $1,292 in industry payments from 2021 to 2025
CMS Open Payments shows 18 general payments to Justin Kosirog from 8 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 85% of the total. Abbvie Inc. paid the most, $588.
General payments to Justin Kosirog by program year, 2021 to 2025
General payments to Justin Kosirog by kind, 2021 to 2025
- Food and beverage$1,09285%
- Education$20015%
Companies that paid Justin Kosirog the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Justin Kosirog graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Justin Kosirog graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Justin Kosirog'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) |
| 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 Justin Kosirog
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Justin Kosirog's NPI number?
Justin Kosirog's NPI number is 1255726238. It was assigned on April 6, 2015, and it is active in the NPI Registry.
What does Justin Kosirog specialize in?
Justin Kosirog is a gastroenterologist in Elgin, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Justin Kosirog practice?
Justin Kosirog practices at 745 Fletcher Dr, Elgin, IL 60123. Justin Kosirog's primary practice is Elgin Gastroenterology Endoscopy Center LLC - HOPD in Elgin, Illinois. Dmand AI also links Justin Kosirog to 3 hospitals, 1 group practice or clinic and 1 ambulatory surgery center.
What is Justin Kosirog's medical license number?
Justin Kosirog holds Oklahoma license 35686.
Which hospitals is Justin Kosirog affiliated with?
Justin Kosirog is affiliated with Advocate Sherman Hospital. Dmand AI links Justin Kosirog to 3 more hospitals.
What medical group is Justin Kosirog part of?
Justin Kosirog is linked to GI Alliance of Illinois.
Does Justin Kosirog accept Medicare?
Yes. CMS data shows Justin Kosirog billed Medicare for 534 services in 2024, and Justin Kosirog accepts Medicare assignment.
What is Justin Kosirog's MIPS score?
Justin Kosirog's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Justin Kosirog see?
CMS counts 357 Medicare patients who saw Justin Kosirog in 2024, with an average age of 75.
What services does Justin Kosirog bill to Medicare?
In 2024, Justin Kosirog's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and surgery: digestive system (45385).
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Where did Justin Kosirog go to medical school?
Justin Kosirog graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2015.
What drugs does Justin Kosirog prescribe most?
In 2024 Medicare Part D data, Justin Kosirog's most prescribed drugs by claims were Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf and Pantoprazole Sodium.
Has Justin Kosirog received payments from drug or device companies?
CMS Open Payments shows $1,292 in general payments to Justin Kosirog from 8 companies from 2021 to 2025. The largest total came from Abbvie Inc.
How long has Justin Kosirog been practicing?
Justin Kosirog graduated from medical school in 2015, 11 years ago.
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