Eric Yang Mar, MD
Internal Medicine Physician · Seattle, WA
Eric Yang Mar, MD is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1053658435, issued on Jan 6, 2013. Check the license (Washington MD60683790, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Eric Yang Mar
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD60683790 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4245 Roosevelt Way NE, Seattle, WA 98105
- Phone
- (206) 543-3605
- Enumerated
- Jan 6, 2013
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 1053658435 WA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 4245 Roosevelt Way NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eric Yang Mar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60683790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
82 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium18 claims
- Amlodipine Besylate13 claims
- Atenolol13 claims
- Lisinopril13 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.
Eric Yang Mar among 3,079 internal medicine physician records in Washington
Eric Yang Mar, 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2021 · 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).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Emily Cooper, MDSeattle, WA 981051780614370
- Ellen Mary Cosgrove, MDSeattle, WA 981051174539738
- David Dugdale, M.D.Seattle, WA 981051265529895
- Anne EackerSeattle, WA 981051720164577
- Jaime Friedman, M.D.Seattle, WA 981051619971512
- Vara Kraft, M.D.Seattle, WA 981051174509293
- Frank Mitchell, MDSeattle, WA 981051891804977
- Joan Olson, MDSeattle, WA 981051629070123
Common questions
What is Eric Yang Mar, MD's NPI number?
Eric Yang Mar, MD's National Provider Identifier (NPI) is 1053658435, issued on Jan 6, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Eric Yang Mar, MD located?
The NPPES record lists a practice address at 4245 Roosevelt Way NE, Seattle, WA, 98105. Phone: (206) 543-3605. Providers update this record themselves, so call before visiting.
How can I verify Eric Yang Mar, MD's license?
NPPES lists Washington license number MD60683790, 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 Eric Yang Mar, MD prescribe under Medicare Part D?
In 2024, Eric Yang Mar, MD had 82 Medicare Part D claims; 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.