Joyce Michelle Koh, M.D.
Gastroenterology (CMS) · Hermiston, OR
At a glance
620 Nw 11Th St Ste M206, Hermiston, OR 97838-6941
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Jun 9, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
620 Nw 11Th St Ste M206Hermiston, OR 97838-6941
Additional reported practice locations
601 John St Ste M-302Kalamazoo, MI 490075357
Phone: 2693492266 1342 Ne Medical Center Dr Ste 100
Bend, OR 977015918
Phone: 5417065777
Education & affiliations
- Medical / professional school
- Pennsylvania State University College Of Medicine
- Graduation year
- 2008
- CMS specialties
- Gastroenterology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Bronson Lakeview Hospital Paw Paw, MI
- Bronson Methodist Hospital Kalamazoo, MI
- Good Shepherd Medical Center Hermiston, OR
- St Anthony Hospital Pendleton, OR
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 13 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Jun 10, 2008
- Record updated
- Jun 9, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207RG0100X · Primary
License reported: MD212643 OR
207RG0100X
License reported: D0074501 MD
207RG0100X
License reported: 4301510763 MI
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
620 Nw 11Th St Ste M206Hermiston, OR 97838-6941
- Phone
- (541) 667-3804
- Fax
- (541) 667-0192
Mailing address
PO BOX 18255IRVINE, CA 926238255
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue