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

James R Giesen, DO

Individual provider Emergency Medicine Physician · NPI 1619056173

James R Giesen, DO practises Emergency Medicine in Grants Pass, Oregon. Graduated from University of Missouri, Kansas City, School of Medicine in 1984, 42 years ago. Practices with Asante, a 135-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
42
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
OR
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

500 SW Ramsey Ave
Grants Pass, OR 97527 Not confirmed with CMS for 19 years — call before visiting
Phone: (541) 472-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence DO15576 (OR)

Record details

NPI number1619056173
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 3, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Asante — 135 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients163
Services billed 181 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

  • Asante Three Rivers Medical Center Hospital · Grants Pass, OR · listed as Asante Three Rivers Medical Center, LLC
  • Asante Rogue Regional Medical Center Hospital · Medford, OR

Colleagues at Asante

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 135 clinicians in the practice; 12 are shown here.

Other providers in Grants Pass