Clark Tuan Kwok, MD
Student in an Organized Health Care Education/Training Program · Yakima, WA
Clark Tuan Kwok, MD is a student in an organized health care education/training program with a practice address in Yakima, Washington, and NPI 1861514861, issued on Apr 3, 2007. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Clark Tuan Kwok
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 1806 W Lincoln Ave, Yakima, WA 98902
- Phone
- (509) 452-4520
- Enumerated
- Apr 3, 2007
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (509) 452-5224
- Medicare enrollment
- Enrolled (PECOS I20110106001020); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 5,164 in Washington → Look up another NPI →
Also registered at 1806 W Lincoln Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roxana Abid, MDFamily Medicine Physician1912751686
- Louise Achey, PHARM.D.Pharmacotherapy Pharmacist1699940577
- Nooshin Aflakian, MDStudent in an Organized Health Care Education/Training Program1073200499
- Asna Akhtar, MDStudent in an Organized Health Care Education/Training Program1174043327
- Florence Akintan, MDFamily Medicine Physician1093560799
- Rana Aldaw, M.D., M.P.H.Family Medicine Physician1174970776
Verify Clark Tuan Kwok in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36.8 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024
6,809 Medicare Part D claims for 726 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 193 claims were for opioids.
Most prescribed
- Atorvastatin Calcium545 claims
- Amlodipine Besylate373 claims
- Losartan Potassium371 claims
- Lisinopril323 claims
- Rosuvastatin Calcium265 claims
- Metformin Hcl241 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
- Southern California Permanente Medical GroupWest Covina, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clark Tuan Kwok among 5,164 student in an organized health care education/training program records in Washington
Clark Tuan Kwok, MD is one of 5,164 student in an organized health care education/training program records with a practice address in Washington. 18% 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 under 1% of them.
- NPI issued2007 · under 1% of these records are older, over 99% newer
- In a Medicare fileYes · 18% of these records are
- In the CMS Doctors and Clinicians fileYes · 3% of these records are
- Graduated2006 · median 2020 among the 137 with a school on file
- Record last updated2021 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
91 student in an organized health care education/training program records list a practice address in Yakima
They are 91 of the 3,970 NPPES records with a practice address in Yakima, and 5,164 student in an organized health care education/training program records in Washington.
All 5,164 in Washington → Every provider in Yakima → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Nooshin Aflakian, MDYakima, WA 989021073200499
- Asna Akhtar, MDYakima, WA 989021174043327
- Kaylah AllaireYakima, WA 989021992245278
- Andrew Boupha, RPHYakima, WA 989021326706656
- Allison Breda, DOYakima, WA 989021851036784
- Jessica Bruner, DOYakima, WA 989021588351902
- Dolly Do, DOYakima, WA 989021982085460
- Aracely FloresYakima, WA 989021639789761
Common questions
What is Clark Tuan Kwok, MD's NPI number?
Clark Tuan Kwok, MD's National Provider Identifier (NPI) is 1861514861, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Clark Tuan Kwok, MD located?
The NPPES record lists a practice address at 1806 W Lincoln Ave, Yakima, WA, 98902. Phone: (509) 452-4520. Providers update this record themselves, so call before visiting.
How can I verify Clark Tuan Kwok, MD's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Clark Tuan Kwok, MD prescribe under Medicare Part D?
In 2024, Clark Tuan Kwok, MD had 6,809 Medicare Part D claims for 726 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.