NPPES file of Aug 9, 2026

Cathryn Lynn Chadwick, MD

Surgical Critical Care Physician · Grand Rapids, MI

Cathryn Lynn Chadwick, MD is a surgical critical care physician with a practice address in Grand Rapids, Michigan, and NPI 1003945908, issued on Mar 5, 2007. Check the license (Michigan 4301106324, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003945908
Name
Cathryn Lynn Chadwick
Credential
MD
Primary taxonomy
Surgical Critical Care Physician 2086S0102X
License number
4301106324 MI
Self-reported in NPPES; status is on the state search
Practice location
221 Michigan St NE Ste 400, Grand Rapids, MI 49503
Phone
(616) 486-9600
Enumerated
Mar 5, 2007
Record last updated
Feb 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(616) 391-6428
Medicare enrollment
Enrolled (PECOS I20140925000177); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 221 Michigan St NE Ste 400

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Allison Blumenfeld, MDSurgical Critical Care Physician1306465026
  2. Timothy Burton, M.D.Surgery Physician1306292859
  3. Alistair Chapman, M.D.Surgical Critical Care Physician1225266331
  4. Eric Christianson, MDOrthopaedic Surgery Physician1861842759
  5. Todd Conlan, M.D.Orthopaedic Surgery Physician1215298732
  6. Harsh Desai, M.D.Surgical Critical Care Physician1538540125

Verify Cathryn Lynn Chadwick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301106324
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score87.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $4,559.01

15 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,092 providers of this specialty with any payment received $2,183.62 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cathryn Chadwick$4,559.01
  2. Specialty average$2,183.62

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Spectrum Health HospitalsGrand Rapids, MI
  2. Spectrum Health Primary Care PartnersGrand Rapids, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cathryn Lynn Chadwick among 88 surgical critical care physician records in Michigan

Cathryn Lynn Chadwick, MD is one of 88 surgical critical care physician records with a practice address in Michigan. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 34% of them.

  • NPI issued2007 · 34% of these records are older, 52% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2004 · median 2007 among the 71 with a school on file
  • Record last updated2021 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Critical Care Physician providers in Michigan

There are 88 surgical critical care physician records in Michigan.

The 8 surgical critical care physician records with the nearest ZIP codes

  1. Bruce Bonnell, M.D.Grand Rapids, MI 495031699771998
  2. Alistair Chapman, M.D.Grand Rapids, MI 495031225266331
  3. Matthew Dull, M.D.Grand Rapids, MI 495031346503455
  4. Charles Gibson, M.DGrand Rapids, MI 495031740596402
  5. Richard Hagelberg, M.D.Grand Rapids, MI 495031568499598
  6. Patricia Pentiak, MDGrand Rapids, MI 495031083877120
  7. James Regan, M.D.Grand Rapids, MI 495031093061905
  8. Bradley Sherman, D.O.Grand Rapids, MI 495031801102439

Common questions

What is Cathryn Lynn Chadwick, MD's NPI number?

Cathryn Lynn Chadwick, MD's National Provider Identifier (NPI) is 1003945908, issued on Mar 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Cathryn Lynn Chadwick, MD located?

The NPPES record lists a practice address at 221 Michigan St NE Ste 400, Grand Rapids, MI, 49503. Phone: (616) 486-9600. Providers update this record themselves, so call before visiting.

How can I verify Cathryn Lynn Chadwick, MD's license?

NPPES lists Michigan license number 4301106324, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Cathryn Lynn Chadwick, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.