NPPES file of Aug 9, 2026

Chester Sim Chua, MD

Internal Medicine Physician · Yakima, WA

Chester Sim Chua, MD is an internal medicine physician with a practice address in Yakima, Washington, and NPI 1437293206, issued on Feb 16, 2007. Check the license (Washington MD00047575, 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
1437293206
Name
Chester Sim Chua
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD00047575 WA
Self-reported in NPPES; status is on the state search
Practice location
402 S 12TH Ave, Yakima, WA 98902
Phone
(509) 248-3236
Enumerated
Feb 16, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(509) 573-3818
Medicare enrollment
Enrolled (PECOS I20070716000395); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 402 S 12TH Ave

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

  1. Kathleen Allen-Jacoby, RNRegistered Nurse1053269175
  2. Peter Asante, MDPediatrics Physician1194067504
  3. Jeffrey Bartlett, M.D.Pediatrics Physician1366547416
  4. Gary Burton, PHARMD, BCACPPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1275821472
  5. Meghan Colleran, NPNurse Practitioner1790203628
  6. Michael Crook, M.D.Pediatrics Physician1922103803

Verify Chester Sim Chua in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00047575
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

86% fewer Medicare Part D claims than the average internal medicine physician in 2024

445 Medicare Part D claims for 198 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Chester Chua445
  2. Specialty average3,176

Most prescribed

  1. Prednisone17 claims
  2. Furosemide16 claims
  3. Metoprolol Succinate16 claims
  4. Spironolactone16 claims
  5. Amlodipine Besylate13 claims
  6. Isosorbide Mononitrate Er13 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: $713.62

7 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chester Chua$713.62
  2. Specialty average$1,303.06

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. Yakima Valley Memorial PhysiciansYakima, WA

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

Chester Sim Chua among 3,079 internal medicine physician records in Washington

Chester Sim Chua, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% 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 45% of them.

  • NPI issued2007 · 45% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2001 · median 2006 among the 1,852 with a school on file
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

49 internal medicine physician records list a practice address in Yakima

They are 49 of the 3,970 NPPES records with a practice address in Yakima, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Richard Boyd, MDYakima, WA 989021427072586
  2. Christopher Clark, DOYakima, WA 989021740204825
  3. Thomas Ellingson, MDYakima, WA 989021427066083
  4. Joseph Forte, DOYakima, WA 989021952397440
  5. Michal Galeziok, M.D.Yakima, WA 989021861670200
  6. George Hotchko, MDYakima, WA 989021053335141
  7. Ajmal Kazman, MDYakima, WA 989021346387172
  8. Nora Kirschner, MDYakima, WA 989021174577597

Common questions

What is Chester Sim Chua, MD's NPI number?

Chester Sim Chua, MD's National Provider Identifier (NPI) is 1437293206, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Chester Sim Chua, MD located?

The NPPES record lists a practice address at 402 S 12TH Ave, Yakima, WA, 98902. Phone: (509) 248-3236. Providers update this record themselves, so call before visiting.

How can I verify Chester Sim Chua, MD's license?

NPPES lists Washington license number MD00047575, 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 Chester Sim Chua, MD prescribe under Medicare Part D?

In 2024, Chester Sim Chua, MD had 445 Medicare Part D claims for 198 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.