Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Isaac Ruben Grindeland, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1225103625

Dr. Isaac Ruben Grindeland, MD practises Pathology in Spokane Valley, Washington. Graduated from University of North Dakota School of Medicine in 2004, 22 years ago. Practices with Incyte Pathology PLLC, a 44-clinician group, works from 9 locations and accepts Medicare assignment. Licensed in Alaska, Colorado, Idaho and Montana and 2 more.

Years since qualifying
22
Trained at
University of North Dakota School of Medicine
Licensed in
AK, CO, ID, MT, OR, WA
In the registry since
2006
Specialties on file
6
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

15912 E Marietta Ave
Spokane Valley, WA 99216-2552
Phone: (509) 892-2700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (8)

  • 500 W Broadway St, Missoula, MT 59802-4008 — (509) 753-7222
  • 3001 St Anthony Way, Pendleton, OR 97801-3836 — (509) 753-7222
  • 3001 St Anthony Way, Pendleton, OR 97801-3836 — (509) 753-7222
  • 221 Wellsian Way, Richland, WA 99352-4114 — (509) 753-7222
  • 13103 E Mansfield Ave, Spokane Valley, WA 99216-1642 — (509) 892-2700
  • 2811 S 102nd St Ste 170, Tukwila, WA 98168-1870 — (509) 753-7222
  • 1025 S 2nd Ave, Walla Walla, WA 99362-4116 — (509) 753-7222
  • 55 W Tietan St, Walla Walla, WA 99362-4445 — (509) 753-7222

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence MD60414708 (WA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 8277 (AK)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence M-12422 (ID)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence MEDPHYSLIC117750 (MT)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 45956 (CO)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence MD161352 (OR)

Record details

NPI number1225103625
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 21, 2006
Last updated in NPPESJune 12, 2026
Certification dateJune 12, 2026

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF NORTH DAKOTA SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Incyte Pathology Pllc — 44 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients1,908
Services billed 4,786 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.

Colleagues at Incyte Pathology PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 44 clinicians in the practice; 12 are shown here.

Other providers in Spokane Valley