Jamin Feng, MD
Internal Medicine Physician · Ellensburg, WA
Jamin Feng, MD is an internal medicine physician with a practice address in Ellensburg, Washington, and NPI 1942250709, issued on May 11, 2006. Check the license (Washington MD00029578, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Jamin Feng
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00029578 WA
Self-reported in NPPES; status is on the state search - Practice location
- 700 E Manitoba Ave, Ellensburg, WA 98926
- Phone
- (509) 925-6100
- Enumerated
- May 11, 2006
- Record last updated
- Apr 19, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (509) 925-7604
- Medicaid ID
- 1079185 WA
- Medicare enrollment
- Enrolled (PECOS I20040427001003); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 700 E Manitoba Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Larry Birger, MDInternal Medicine Physician1306830823
- Anna Collins, ARNPNurse Practitioner1497060339
- Daniel Hiersche, M.D.Specialist1043297187
- Roberta Hoppe, MDClinical Cardiac Electrophysiology Physician1104874270
- David Jackson, M.D.Internal Medicine Physician1992780159
- Vicki MacyObstetrics & Gynecology Physician1619985686
Verify Jamin Feng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00029578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,875 Medicare Part D claims for 593 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Ondansetron Hcl235 claims
- Atorvastatin Calcium227 claims
- Sod Sulf-Potass Sulf-Mag Sulf155 claims
- Lisinopril150 claims
- Amlodipine Besylate141 claims
- Omeprazole120 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kittitas County Public Hospital Dist 1Ellensburg, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Internal Medicine Physician providers in Washington
There are 3,079 internal medicine physician records in Washington.
Other internal medicine physician records in Washington
- Sheida Aalami, M.D.Seattle, WA1730573296
- Gloria AbacanProsser, WA1316040298
- Ahmad Abadullah, MDUniversity Place, WA1225005721
- Rebecca AbaySeattle, WA1528565520
- Naseer Abbas, MDTacoma, WA1962769380
- James Abbey, M.D.Anacortes, WA1447646039
- Joel Abbott, D.O.Tacoma, WA1477752723
- Paul Abdallah, MDSeattle, WA1639166119
- Abir Abdel-Kader, MDRichland, WA1649407081
- Hussein Abdille, MDSeattle, WA1588368831
Common questions
What is Jamin Feng, MD's NPI number?
Jamin Feng, MD's National Provider Identifier (NPI) is 1942250709, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jamin Feng, MD located?
The NPPES record lists a practice address at 700 E Manitoba Ave, Ellensburg, WA, 98926. Phone: (509) 925-6100. Providers update this record themselves, so call before visiting.
How can I verify Jamin Feng, MD's license?
NPPES lists Washington license number MD00029578, 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 Jamin Feng, MD prescribe under Medicare Part D?
In 2024, Jamin Feng, MD had 2,875 Medicare Part D claims for 593 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jamin Feng, MD's MIPS final score?
The 2023 MIPS final score is 77.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.