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Dr. Cathryn Lynn Chadwick, MD
NPI1003945908PAC ID8123175148
- Medicare services, 2024
- 153
- Medicare patients, 2024
- 122
- Publications
- 4
- Clinical trials
- 1
- Hospital affiliations
- 2
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Chadwick'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. Cathryn Lynn Chadwick is a surgical critical care physician in Grand Rapids, Michigan
Dr. Chadwick practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Dr. Chadwick's NPI, 1003945908, was assigned on March 5, 2007. Dr. Chadwick graduated from University of Louisville School of Medicine in 2004. Dr. Chadwick holds Michigan license 4301106324.
NPI and contact details
- NPI
- 1003945908NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123175148
- NPI enumeration date
- March 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cathryn Lynn Chadwick practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Dr. Chadwick's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Dr. Cathryn Lynn Chadwick is affiliated with 6 sites of care and 3 medical groups
Dr. Chadwick's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dr. Chadwick is also affiliated with Corewell Health Big Rapids Hospital. The medical group on file is Corewell Health Medical Group West. Dmand AI also links Dr. Chadwick to 3 more group practices and clinics, 2 medical groups and 1 hospice, each named with a free account.
Corewell Health Big Rapids HospitalCorewell Health Medical Group West3 group practices and clinicsNames with a free account2 medical groupsNames with a free account1 hospiceName with a free account
See all 9 affiliations for Dr. ChadwickSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cathryn Lynn Chadwick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chadwick practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Cathryn Lynn Chadwick is one of 73 surgical critical care physicians in Michigan
Surgical critical care is Dr. Chadwick's primary specialty in the NPI Registry, under taxonomy code 2086S0102X. Dr. Chadwick is licensed in Michigan.
Specialties and state licenses
- Surgical critical care, MichiganPrimary
Surgical critical care physicians near Dr. Chadwick
Counts of surgical critical care physicians with a Dmand AI profile, by place and practice. Each opens the list.
73surgical critical care physicians in Michigan20surgical critical care physicians in Grand Rapids17surgical critical care physicians at Corewell Health Grand Rapids Hospitals - Butterworth
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Cathryn Lynn Chadwick billed Medicare for 153 services in 2024
CMS data shows 153 Medicare services from Dr. Chadwick across 5 procedure codes in 2024, for 122 Medicare patients. Medicare paid $17,614 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024153
Medicare patients122
Paid by Medicare$17,614
Procedure codes5
Dr. Chadwick's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1762024: 15313%
Dr. Chadwick compared with the Michigan median for surgical critical care physicians, 2024
- Dr. Chadwick
- Michigan median
- Medicare services
- 153vs 12423% above
- Medicare patients
- 122vs 9134% above
Medians across 68 surgical critical care physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Chadwick'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 Dr. Chadwick?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chadwick and other surgical critical care physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cathryn Lynn Chadwick treated 122 Medicare patients in 2024, average age 74
CMS counts 122 Medicare patients who saw Dr. Chadwick in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.73, 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. Chadwick's median patient age at 63, with 47% women.
Medicare patients, 2024122
Average age74
Average risk score1.73
Also on Medicaid25%
Dr. Chadwick's Medicare patients by age, 2024
Dr. Chadwick's Medicare patients by sex, 2024
- Women6755%
- Men5545%
Chronic conditions among Dr. Chadwick's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis67%
- Mood disorders52%
- Anxiety48%
- Depression47%
- Ischemic heart disease47%
- Heart failure42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chadwick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Cathryn Lynn Chadwick takes part in Medicare
Dr. Chadwick accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Cathryn Lynn Chadwick has 4 publications on record
Dmand AI links 4 papers to Dr. Chadwick, published from 2021 to 2024. The most frequent topics are Hemorrhage. Dr. Chadwick's most frequent co-authors are Alistair Jon Chapman, MD, Matthew Brent Dull, MD and Gaby A P Iskander, MD.
Papers4
Years published2021 to 2024
Topics Dr. Chadwick writes about most
- Hemorrhage
Dr. Chadwick's most frequent co-authors
- Alistair Jon Chapman, MD2 shared papers
- Matthew Brent Dull, MD2 shared papers
- Gaby A P Iskander, MD2 shared papers
Recent publications by Dr. Chadwick
AltitudeAntifibrinolytic AgentsHemorrhage
Int Surg
Blood Loss, SurgicalChemotherapy, AdjuvantGastric Fistula
Aorta, ThoracicBalloon OcclusionData Collection
See who Dr. Chadwick researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chadwick works with, so you can find a warm path to the right surgical critical care physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Cathryn Lynn Chadwick has worked on 1 clinical trial
Dmand AI links Dr. Chadwick to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Rib Fractures and Thoracic Injuries.
Conditions in Dr. Chadwick's trials
- Rib Fractures
- Thoracic Injuries
Investigators on the most trials with Dr. Chadwick
- Alistair Jon Chapman, MD1 shared trial
- Matthew Brent Dull, MD1 shared trial
- Richard Spencer Hagelberg, MD1 shared trial
Recent clinical trials with Dr. Chadwick
Ketamine Vs Lidocaine in Traumatic Rib Fractures (opens in a new tab)
Active, not recruitingPhase 4
Rib FracturesThoracic InjuriesKetamineLidocaine
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Cathryn Lynn Chadwick received $6,618 in industry payments from 2018 to 2025
CMS Open Payments shows 30 general payments to Dr. Chadwick from 11 drug and device companies from 2018 to 2025. Education make up the largest share, 38% of the total. Intuitive Surgical, Inc. paid the most, $5,215.
General payments to Dr. Chadwick by program year, 2018 to 2025
General payments to Dr. Chadwick by kind, 2018 to 2025
$6.6Kin total
- Education$2,50038%
- Travel and lodging$2,25034%
- Food and beverage$1,86828%
Companies that paid Dr. Chadwick the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cathryn Lynn Chadwick graduated from University of Louisville School of Medicine
Dr. Chadwick graduated from University of Louisville School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cathryn Lynn Chadwick'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 Dr. Cathryn Lynn Chadwick
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. Cathryn Lynn Chadwick's NPI number?
Dr. Cathryn Lynn Chadwick's NPI number is 1003945908. It was assigned on March 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Cathryn Lynn Chadwick?
Dr. Cathryn Lynn Chadwick is a surgical critical care physician in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Surgical Critical Care Physician (taxonomy code 2086S0102X).
Where does Dr. Cathryn Lynn Chadwick practice?
Dr. Chadwick practices at 100 Michigan St NE, Grand Rapids, MI 49503. Dr. Chadwick's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Dr. Chadwick to 3 group practices and clinics, 2 medical groups and 1 hospice.
What is Dr. Cathryn Lynn Chadwick's office phone number?
The practice phone on file for Dr. Chadwick is (616) 391-1774.
What is Dr. Cathryn Lynn Chadwick's medical license number?
Dr. Chadwick holds Michigan license 4301106324.
Which hospitals is Dr. Cathryn Lynn Chadwick affiliated with?
Dr. Chadwick practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Dr. Chadwick is also affiliated with Corewell Health Big Rapids Hospital.
What medical group is Dr. Cathryn Lynn Chadwick part of?
Dr. Chadwick is linked to Corewell Health Medical Group West. Dmand AI links Dr. Chadwick to 2 more medical groups.
Does Dr. Cathryn Lynn Chadwick accept Medicare?
Yes. CMS data shows Dr. Chadwick billed Medicare for 153 services in 2024, and Dr. Chadwick accepts Medicare assignment.
How many Medicare patients does Dr. Cathryn Lynn Chadwick see?
CMS counts 122 Medicare patients who saw Dr. Chadwick in 2024, with an average age of 74.
What services does Dr. Cathryn Lynn Chadwick bill to Medicare?
In 2024, Dr. Chadwick's most billed Medicare services were critical care (99291), hospital inpatient care (99231) and hospital inpatient care (99222).
Show 5 more questionsShow fewer questions
Where did Dr. Cathryn Lynn Chadwick go to medical school?
Dr. Chadwick graduated from University of Louisville School of Medicine in 2004.
Has Dr. Cathryn Lynn Chadwick received payments from drug or device companies?
CMS Open Payments shows $6,618 in general payments to Dr. Chadwick from 11 companies from 2018 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Cathryn Lynn Chadwick been practicing?
Dr. Chadwick graduated from medical school in 2004, 22 years ago.
Does Dr. Cathryn Lynn Chadwick do research?
Dmand AI links 4 publications to Dr. Chadwick, published from 2021 to 2024. Dr. Chadwick has worked on 1 clinical trial.
Who does Dr. Cathryn Lynn Chadwick publish with?
Dr. Chadwick's most frequent co-authors are Alistair Jon Chapman, MD (2 shared papers), Matthew Brent Dull, MD (2 shared papers) and Gaby A P Iskander, MD (2 shared papers).
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