Primary practice
Find Dr. Gresik'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. Gresik practices at Edward Hospital in Naperville, Illinois, part of Endeavor Health.
Dr. Gresik's NPI, 1225298045, was assigned on June 16, 2008. Dr. Gresik holds Illinois license 125050977.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gresik's primary practice is Edward Hospital, at 801 South Washington, Naperville, IL 60540 in Du Page County. The practice phone is (630) 527-3000.
Source: Dmand AI Affiliation Data
Dr. Gresik's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. Dr. Gresik is also affiliated with Elmhurst Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Gresik to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gresik practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Edward Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Surgery is Dr. Gresik's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Gresik is licensed in Illinois.
Counts of general 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
CMS data shows 633 Medicare services from Dr. Gresik across 10 procedure codes in 2024, for 288 Medicare patients. Medicare paid $125,396 for them.
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
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. Gresik and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 288 Medicare patients who saw Dr. Gresik in 2024. The largest group is 65 to 74, with 174 patients. 75% of them have cancer, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gresik's median patient age at 59, with 99% women.
CMS leaves out age groups with fewer than 11 patients.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 59
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Gresik wrote 123 Medicare Part D claims for 111 patients. 100% of them were for generic drugs. CMS names the drug for 103 of them, across 1 drug with 11 or more claims each, at $526 in total drug cost. In 2023, CMS named 82 claims across 1 drug.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Drugs named by CMS: 1 in 2024, 1 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
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Gresik for performance year 2024, reported as part of a group. Dr. Gresik accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 96 procedures of mastectomy by Dr. Gresik, more than 99% of the clinicians it reports for that procedure.
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 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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Dmand AI links Dr. Gresik to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Carcinoma, Intraductal, Noninfiltrating and Breast Carcinoma In Situ.
Conditions in Dr. Gresik's trials
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 10 general payments to Dr. Gresik from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Ethicon Inc. paid the most, $297.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
| 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) |
| 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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
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Dr. Christine Marie Gresik's NPI number is 1225298045. It was assigned on June 16, 2008, and it is active in the NPI Registry.
Dr. Christine Marie Gresik is a general surgeon in Naperville, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Dr. Gresik practices at 801 South Washington, Naperville, IL 60540. Dr. Gresik's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. Dmand AI also links Dr. Gresik to 1 hospital, 2 group practices and clinics and 1 medical group.
The practice phone on file for Dr. Gresik is (630) 527-3000.
Dr. Gresik holds Illinois license 125050977.
Dr. Gresik practices at Edward Hospital in Naperville, Illinois. Dr. Gresik is also affiliated with Elmhurst Hospital. Dmand AI links Dr. Gresik to 1 more hospital.
Dr. Gresik is linked to Endeavor Health Medical Group. Dmand AI links Dr. Gresik to 1 more medical group.
Yes. CMS data shows Dr. Gresik billed Medicare for 633 services in 2024, and Dr. Gresik accepts Medicare assignment.
Dr. Gresik's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
CMS counts 288 Medicare patients who saw Dr. Gresik in 2024, with an average age of 74.
In 2024, Dr. Gresik's most billed Medicare services were office visit, established patient (99213), diagnostic imaging (76098) and office visit, new patient (99205).
In 2024 Medicare Part D data, Dr. Gresik's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
CMS Open Payments shows $557 in general payments to Dr. Gresik from 5 companies from 2016 to 2024. The largest total came from Ethicon Inc.
Dr. Gresik graduated from medical school in 2006, 20 years ago.
Dr. Gresik has worked on 1 clinical trial.
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