Clement Sung-Jay Sun, MD, PHD, MS
Internal Medicine Physician · Issaquah, WA
Clement Sung-Jay Sun, MD, PHD, MS is an internal medicine physician with a practice address in Issaquah, Washington, and NPI 1245626779, issued on Apr 10, 2015. Check the license (Washington MD.MD.60924269, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Clement Sung-Jay Sun
- Credential
- MD, PHD, MS
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD.MD.60924269 WA
Self-reported in NPPES; status is on the state search - Practice location
- 5188 NW Sammamish RD, Issaquah, WA 98027
- Phone
- (425) 591-8657
- Enumerated
- Apr 10, 2015
- Record last updated
- Mar 1, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190507002392); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2015
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Verify Clement Sung-Jay Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD.MD.60924269Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,245 Medicare Part D claims for 295 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium97 claims
- Fluticasone Propionate56 claims
- Losartan Potassium56 claims
- Ipratropium Bromide47 claims
- Amlodipine Besylate39 claims
- Rosuvastatin Calcium37 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
- Pacmed ClinicsSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clement Sung-Jay Sun among 3,079 internal medicine physician records in Washington
Clement Sung-Jay Sun, MD, PHD, MS 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 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2015 · median 2006 among the 1,852 with a school on file
- Record last updated2019 · 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).
19 internal medicine physician records list a practice address in Issaquah
They are 19 of the 1,727 NPPES records with a practice address in Issaquah, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Issaquah → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gordon Brandt, MDIssaquah, WA 980271891182705
- Yunyu Cao, MDIssaquah, WA 980271417091802
- Cheyenne Enevold, MDIssaquah, WA 980271487035713
- Yi Huang, MDIssaquah, WA 980271023428364
- Terry Jacobson, MDIssaquah, WA 980271063429256
- Kenneth Kay, MDIssaquah, WA 980271982628384
- Alice Kim, M.D.Issaquah, WA 980271023217734
- Sheri Malakhova, MDIssaquah, WA 980271164464517
Common questions
What is Clement Sung-Jay Sun, MD, PHD, MS's NPI number?
Clement Sung-Jay Sun, MD, PHD, MS's National Provider Identifier (NPI) is 1245626779, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Clement Sung-Jay Sun, MD, PHD, MS located?
The NPPES record lists a practice address at 5188 NW Sammamish RD, Issaquah, WA, 98027. Phone: (425) 591-8657. Providers update this record themselves, so call before visiting.
How can I verify Clement Sung-Jay Sun, MD, PHD, MS's license?
NPPES lists Washington license number MD.MD.60924269, 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 Clement Sung-Jay Sun, MD, PHD, MS prescribe under Medicare Part D?
In 2024, Clement Sung-Jay Sun, MD, PHD, MS had 1,245 Medicare Part D claims for 295 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.