West J Emerg Med
AppendicitisBody Mass IndexEmergency Service, Hospital
Dr. Christopher Michael Kerwin, MD
NPI1942470760
- Medicare services, 2024
- 362
- Medicare patients, 2024
- 366
- Part D claims, 2024
- 160
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 4440 W 95th Street, Oak Lawn, IL 60453
- Practice phone
- Call (708) 684-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kerwin's professional email, personal email and mobile number
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Dr. Christopher Michael Kerwin is an emergency medicine physician in Oak Lawn, Illinois
Dr. Kerwin practices at Advocate Christ Medical Center in Oak Lawn, Illinois, part of Advocate Health.
Dr. Kerwin's NPI, 1942470760, was assigned on March 7, 2008. Dr. Kerwin graduated from University of New Mexico School of Medicine in 2005. Dr. Kerwin holds Illinois license 036.119967.
NPI and contact details
- NPI
- 1942470760NPI Registry (opens in a new tab)
- NPI enumeration date
- March 7, 2008
- NPI status
- Active
- Practice phone
- (708) 684-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Christopher Michael Kerwin practices at Advocate Christ Medical Center in Oak Lawn, Illinois
Dr. Kerwin's primary practice is Advocate Christ Medical Center, at 4440 W 95th Street, Oak Lawn, IL 60453 in Cook County. The practice phone is (708) 684-8000.
- Advocate Christ Medical Center4440 W 95th Street, Oak Lawn, IL 60453 · Cook CountyPhone(708) 684-8000
Source: Dmand AI Affiliation Data
Dr. Christopher Michael Kerwin is affiliated with 2 sites of care and 6 medical groups
Dr. Kerwin's primary practice is Advocate Christ Medical Center in Oak Lawn, Illinois, part of Advocate Health. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Kerwin to 5 more medical groups and 1 group practice or clinic, each named with a free account.
Dreyer Medical Clinic (Advocate Medical Group)5 medical groupsNames with a free account1 group practice or clinicName with a free account
See all 8 affiliations for Dr. KerwinSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher Michael Kerwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kerwin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Christ Medical Center | Available with a free account |
| +1 more site and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Michael Kerwin is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Kerwin's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Kerwin is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Kerwin
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
2,385emergency medicine physicians in Illinois58emergency medicine physicians in Oak Lawn53emergency medicine physicians at Advocate Christ Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Christopher Michael Kerwin billed Medicare for 362 services in 2024
CMS data shows 362 Medicare services from Dr. Kerwin across 3 procedure codes in 2024, for 366 Medicare patients. Medicare paid $36,190 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024362
Medicare patients366
Paid by Medicare$36,190
Procedure codes3
Dr. Kerwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3992024: 3629%
Dr. Kerwin compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Kerwin
- Illinois median
- Medicare services
- 362vs 27432% above
- Medicare patients
- 366vs 27334% above
- Part D claims
- 62vs 4538% above
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Kerwin'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. Kerwin and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Michael Kerwin treated 366 Medicare patients in 2024, average age 72
CMS counts 366 Medicare patients who saw Dr. Kerwin in 2024. The largest group is 65 to 74, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.34, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Kerwin's median patient age at 69, with 61% women.
Medicare patients, 2024366
Average age72
Average risk score2.34
Also on Medicaid34%
Dr. Kerwin's Medicare patients by age, 2024
Dr. Kerwin's Medicare patients by sex, 2024
- Women22160%
- Men14540%
Chronic conditions among Dr. Kerwin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes49%
- Chronic kidney disease48%
- Ischemic heart disease45%
- Heart failure44%
- Anxiety39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kerwin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Michael Kerwin wrote 160 Medicare Part D claims in 2024
In 2024, Dr. Kerwin wrote 160 Medicare Part D claims for 102 patients. 91% of them were for generic drugs. CMS names the drug for 62 of them, across 4 drugs with 11 or more claims each, at $167 in total drug cost. In 2023, CMS named 65 claims across 3 drugs.
Part D claims, 2024160
Drugs named by CMS4
Total drug cost$167
Part D patients102
Dr. Kerwin's Part D claims by kind of drug, 2024
- Generic146 claims91%
- Brand-name14 claims9%
Dr. Kerwin'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. Kerwin's Part D claims, 2024
- Opioids19%30 of 160 claims
- Antibiotics20%32 of 160 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: 652024: 625%
Drugs named by CMS: 4 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
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Dr. Christopher Michael Kerwin has 1 publication on record
Dmand AI links 1 paper to Dr. Kerwin in 2016. Dr. Kerwin's most frequent co-author is Diana Goodwine, MD.
Papers1
Dr. Kerwin's most frequent co-authors
Recent publications by Dr. Kerwin
See who Dr. Kerwin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kerwin works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher Michael Kerwin received $138 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Kerwin from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Horizon Pharma plc paid the most, $138.
Companies that paid Dr. Kerwin the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher Michael Kerwin graduated from University of New Mexico School of Medicine
Dr. Kerwin graduated from University of New Mexico School of Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher Michael Kerwin'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Michael Kerwin
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 Michael Kerwin's NPI number?
Dr. Christopher Michael Kerwin's NPI number is 1942470760. It was assigned on March 7, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Michael Kerwin?
Dr. Christopher Michael Kerwin is an emergency medicine physician in Oak Lawn, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Christopher Michael Kerwin practice?
Dr. Kerwin practices at 4440 W 95th Street, Oak Lawn, IL 60453. Dr. Kerwin's primary practice is Advocate Christ Medical Center in Oak Lawn, Illinois, part of Advocate Health. Dmand AI also links Dr. Kerwin to 5 medical groups and 1 group practice or clinic.
What is Dr. Christopher Michael Kerwin's office phone number?
The practice phone on file for Dr. Kerwin is (708) 684-8000.
What is Dr. Christopher Michael Kerwin's medical license number?
Dr. Kerwin holds Illinois license 036.119967.
Which hospitals is Dr. Christopher Michael Kerwin affiliated with?
Dr. Kerwin practices at Advocate Christ Medical Center in Oak Lawn, Illinois.
What medical group is Dr. Christopher Michael Kerwin part of?
Dr. Kerwin is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Kerwin to 5 more medical groups.
Does Dr. Christopher Michael Kerwin accept Medicare?
Yes. CMS data shows Dr. Kerwin billed Medicare for 362 services in 2024.
How many Medicare patients does Dr. Christopher Michael Kerwin see?
CMS counts 366 Medicare patients who saw Dr. Kerwin in 2024, with an average age of 72.
What services does Dr. Christopher Michael Kerwin bill to Medicare?
In 2024, Dr. Kerwin's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
Show 6 more questionsShow fewer questions
Where did Dr. Christopher Michael Kerwin go to medical school?
Dr. Kerwin graduated from University of New Mexico School of Medicine in 2005.
What drugs does Dr. Christopher Michael Kerwin prescribe most?
In 2024 Medicare Part D data, Dr. Kerwin's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron HCl and Prednisone.
Has Dr. Christopher Michael Kerwin received payments from drug or device companies?
CMS Open Payments shows $138 in general payments to Dr. Kerwin from 1 company from 2022 to 2022. The largest total came from Horizon Pharma plc.
How long has Dr. Christopher Michael Kerwin been practicing?
Dr. Kerwin graduated from medical school in 2005, 21 years ago.
Does Dr. Christopher Michael Kerwin do research?
Dmand AI links 1 publication to Dr. Kerwin.
Who does Dr. Christopher Michael Kerwin publish with?
Dr. Kerwin's most frequent co-authors are Diana Goodwine, MD (1 shared paper).
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