Katherine Westin Kwon, M.D.
Nephrology Physician · Saint Joseph, MI
Katherine Westin Kwon, M.D. is a nephrology physician with a practice address in Saint Joseph, Michigan, and NPI 1891907770, issued on May 4, 2007. Check the license on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Katherine Westin Kwon
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 0101236883 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Hollywood RD, Saint Joseph, MI 49085
- Phone
- (269) 428-0819
- Enumerated
- May 4, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (269) 428-0841
- Medicare enrollment
- Enrolled (PECOS I20070713000594); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 376 in Michigan → Look up another NPI →
Also registered at 3800 Hollywood RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Brash, M.D.Nephrology Physician1649362799
- David Halstead, DPMPodiatrist1407843469
- Craig Okonski, DPMPodiatrist1144210881
- Eugene Preston, PA-CMedical Physician Assistant1134225550
- Mukund Shah, M.D.Pediatrics Physician1013086446
- Oliver Songlingco, M.D.Nephrology Physician1891887964
Verify Katherine Westin Kwon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average nephrology physician in 2024
1,845 Medicare Part D claims for 310 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Jardiance277 claims
- Farxiga190 claims
- Losartan Potassium148 claims
- Amlodipine Besylate129 claims
- Olmesartan Medoxomil98 claims
- Lisinopril86 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $77,169.88
56 payments; by number, the most common kind was travel and lodging; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Lake Michigan Nephrology LLCNiles, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Westin Kwon among 376 nephrology physician records in Michigan
Katherine Westin Kwon, M.D. is one of 376 nephrology physician records with a practice address in Michigan. 82% 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 52% of them.
- NPI issued2007 · 52% of these records are older, 36% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2001 · median 2001 among the 279 with a school on file
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Michigan
There are 376 nephrology physician records in Michigan.
All 376 in Michigan → Every provider in Saint Joseph → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Daniel Brash, M.D.Saint Joseph, MI 490851649362799
- Emily DryerSaint Joseph, MI 490851437579992
- Oliver Songlingco, M.D.Saint Joseph, MI 490851891887964
- Sangeeta Pal, MDDowagiac, MI 490471306017645
- George Adam, M.D.Battle Creek, MI 490371316902562
- Kenneth Fisher, M.D.Kalamazoo, MI 490081548213986
- Ahmed Aqeel, MDKalamazoo, MI 490071922057546
- Melissa Baker, DOKalamazoo, MI 490071548829898
Common questions
What is Katherine Westin Kwon, M.D.'s NPI number?
Katherine Westin Kwon, M.D.'s National Provider Identifier (NPI) is 1891907770, issued on May 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Westin Kwon, M.D. located?
The NPPES record lists a practice address at 3800 Hollywood RD, Saint Joseph, MI, 49085. Phone: (269) 428-0819. Providers update this record themselves, so call before visiting.
How can I verify Katherine Westin Kwon, M.D.'s license?
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.
How much does Katherine Westin Kwon, M.D. prescribe under Medicare Part D?
In 2024, Katherine Westin Kwon, M.D. had 1,845 Medicare Part D claims for 310 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Katherine Westin Kwon, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.