Jamin Feng, MD
NPI 1942250709 · Internal Medicine Physician · Ellensburg, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jamin Feng, MD is a Internal Medicine Physician provider in Ellensburg, WA (NPI 1942250709).
Provider details
- NPI number
- 1942250709
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00029578 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
432 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 208 | $260 |
| Test to Measure Expiratory Airflow and Volume Initiated By Patient and Evaluated By Provider94016 | 80 | $25 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 40 | $104 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 38 | $112 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 29 | $189 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 235 | 230 |
| Atorvastatin Calcium | 227 | 62 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 155 | 152 |
| Lisinopril | 150 | 43 |
| Amlodipine Besylate | 141 | 41 |
| Omeprazole | 120 | 47 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-11
- Last updated
- 2010-04-19
Frequently asked questions
- What is Jamin Feng's NPI number?
- Jamin Feng's National Provider Identifier (NPI) is 1942250709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jamin Feng's specialty?
- Jamin Feng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jamin Feng located?
- Jamin Feng's practice location on file with NPPES is 700 E Manitoba Ave, Ellensburg, WA 98926-3885.
- What is Jamin Feng's phone number?
- The practice phone number listed in the NPPES registry for Jamin Feng is (509) 925-6100.
- Does Jamin Feng accept Medicare?
- Jamin Feng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jamin Feng's NPI active?
- Yes — Jamin Feng's NPI (1942250709) is active in the NPPES registry as of the last update on 2010-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.