Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Jamin Feng, MD

Individual provider Internal Medicine Physician · NPI 1942250709

Dr. Jamin Feng, MD practises Internal Medicine in Ellensburg, Washington. Qualified in 1988, 38 years ago. Practices with Kittitas County Public Hospital Dist 1, a 81-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
38
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

700 E Manitoba Ave Ste 101
Ellensburg, WA 98926-3885 Not confirmed with CMS for 16 years — call before visiting
Phone: (509) 925-6100
Fax: (509) 925-7604
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD00029578 (WA)

Record details

NPI number1942250709
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESApril 19, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Kittitas County Public Hospital Dist 1 — 81 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 92 times · 78th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 54 times · 65th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients399
Services billed 466 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Kittitas Valley Community Hospital Hospital · Ellensburg, WA · listed as Kittitas County Public Hospital Dist 1
  • Yakima Valley Memorial Hospital · Yakima, WA · listed as Yakima Valley Memorial Hospital
  • Kittitas Valley Home Health & Hospice Home health agency · Ellensburg, WA

Colleagues at Kittitas County Public Hospital Dist 1

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 81 clinicians in the practice; 12 are shown here.

Other providers in Ellensburg