NPPES file of Aug 9, 2026

James Yoon, MD

Nephrology Physician · Vancouver, WA

James Yoon, MD is a nephrology physician with a practice address in Vancouver, Washington, and NPI 1750735700, issued on Apr 15, 2016. Check the license (Washington MD61181685, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1750735700
Name
James Yoon
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
MD61181685 WA
MD204924 OR
Self-reported in NPPES; status is on the state search
Practice location
14406 NE 20TH Ave, Vancouver, WA 98686
Phone
(800) 813-2000
Enumerated
Apr 15, 2016
Record last updated
Mar 4, 2026
Medicare enrollment
Enrolled (PECOS I20210820000936); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2016
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 14406 NE 20TH Ave

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

  1. Shaanti Abbruzzese, CNMAdvanced Practice Midwife1063577815
  2. Christina Adams, RDADental Assistant1639422645
  3. Genise Albertson, RDADental Assistant1982949830
  4. Camilla Albrecht, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1568645489
  5. Joseph Alsberge, M.D.Ophthalmology Physician1740623792
  6. Marcus Asby, M.D.Internal Medicine Physician1104112697

Verify James Yoon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61181685
    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 Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% fewer Medicare Part D claims than the average nephrology physician in 2024

1,049 Medicare Part D claims for 229 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. James Yoon1,049
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium121 claims
  2. Jardiance112 claims
  3. Amlodipine Besylate73 claims
  4. Furosemide63 claims
  5. Torsemide58 claims
  6. Lokelma51 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.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The NorthwestClackamas, OR

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

James Yoon among 284 nephrology physician records in Washington

James Yoon, MD is one of 284 nephrology physician records with a practice address in Washington. 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 2016, is newer than 85% of them.

  • NPI issued2016 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2016 · median 2003 among the 213 with a school on file
  • Record last updated2026 · 60% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Washington

There are 284 nephrology physician records in Washington.

The 8 nephrology physician records with the nearest ZIP codes

  1. Daniel Carl, M.D.Vancouver, WA 986841811928336
  2. Neha Deval, MDVancouver, WA 986831558849125
  3. Jason Chen, MDVancouver, WA 986641750875803
  4. Mahesh Dangal, M.D.Vancouver, WA 986641710171129
  5. Binaya Khanal, MBBSVancouver, WA 986641073779831
  6. Larry Lee, MDVancouver, WA 986641134160682
  7. Akshita Narra, M.D.Vancouver, WA 986641760739445
  8. Michelle Pengshung, MDVancouver, WA 986641356845234

Common questions

What is James Yoon, MD's NPI number?

James Yoon, MD's National Provider Identifier (NPI) is 1750735700, issued on Apr 15, 2016. An NPI identifies a provider in billing; it is not a license.

Where is James Yoon, MD located?

The NPPES record lists a practice address at 14406 NE 20TH Ave, Vancouver, WA, 98686. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.

How can I verify James Yoon, MD's license?

NPPES lists Washington license number MD61181685, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Yoon, MD prescribe under Medicare Part D?

In 2024, James Yoon, MD had 1,049 Medicare Part D claims for 229 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

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.