NPPES file of Aug 9, 2026

Joseph Kwangwook Kim, MD

Gastroenterology Physician · Olympia, WA

Joseph Kwangwook Kim, MD is a gastroenterology physician with a practice address in Olympia, Washington, and NPI 1518427475, issued on Mar 25, 2019. Check the license (Washington MD61666628, 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
1518427475
Name
Joseph Kwangwook Kim
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
MD61666628 WA
1518427475 AZ
Self-reported in NPPES; status is on the state search
Practice location
209 Lilly RD NE Ste B, Olympia, WA 98506
Phone
(360) 413-8250
Enumerated
Mar 25, 2019
Record last updated
Jul 15, 2025
Fax
(360) 413-8830
Medicare enrollment
Enrolled (PECOS I20250630003491); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2019
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 209 Lilly RD NE Ste B

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

  1. Mitchell Dignan, PA-CPhysician Assistant1861176786
  2. Richard Elloway, MDGastroenterology Physician1003841958
  3. Maria Theresa Kurtz, D.O.Gastroenterology Physician1750608329
  4. Yiting LiGastroenterology Physician1912486408
  5. Mallory Mumma, ARNPGerontology Nurse Practitioner1801783402
  6. Madeleine ReedFamily Nurse Practitioner1033859137

Verify Joseph Kwangwook Kim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61666628
    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

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87% fewer Medicare Part D claims than the average gastroenterology physician in 2024

103 Medicare Part D claims for 35 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.

  1. Joseph Kim103
  2. Specialty average811

Most prescribed

  1. Linzess20 claims
  2. Omeprazole19 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.

Industry payments in 2024: $197.59

6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Kim$197.59
  2. Specialty average$5,015.95

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

  1. Puget Sound Gastroenterology PLLCOlympia, WA

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

Joseph Kwangwook Kim among 533 gastroenterology physician records in Washington

Joseph Kwangwook Kim, MD is one of 533 gastroenterology physician records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 96% of them.

  • NPI issued2019 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2019 · median 2003 among the 373 with a school on file
  • Record last updated2025 · 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 207RG0100X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Washington

There are 533 gastroenterology physician records in Washington.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Harpreet Brar, MDOlympia, WA 985061528058658
  2. Mark Cumings, M.D.Olympia, WA 985061629132584
  3. Richard Elloway, MDOlympia, WA 985061003841958
  4. Rodney Joe, MDOlympia, WA 985061558342501
  5. James Kruidenier, MDOlympia, WA 985061497736573
  6. Maria Theresa Kurtz, D.O.Olympia, WA 985061750608329
  7. Lucas Leonard, M.D.Olympia, WA 985061992796528
  8. Benjamin Merrifield, MDOlympia, WA 985061083695167

Common questions

What is Joseph Kwangwook Kim, MD's NPI number?

Joseph Kwangwook Kim, MD's National Provider Identifier (NPI) is 1518427475, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Kwangwook Kim, MD located?

The NPPES record lists a practice address at 209 Lilly RD NE Ste B, Olympia, WA, 98506. Phone: (360) 413-8250. Providers update this record themselves, so call before visiting.

How can I verify Joseph Kwangwook Kim, MD's license?

NPPES lists Washington license number MD61666628, 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 Joseph Kwangwook Kim, MD prescribe under Medicare Part D?

In 2024, Joseph Kwangwook Kim, MD had 103 Medicare Part D claims for 35 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.