ROSS HARRISON MD
NPI 1841610920
Obstetrics & Gynecology - Gynecologic Oncology in Portland, OR
About Ross Harrison Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROSS HARRISON MD (NPI 1841610920) is an individual gynecologic oncology provider in Portland, Oregon, licensed in Oregon (MD209464) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Asante Three Rivers Medical Center, and is a graduate of University Of Florida College Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ross Harrison Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Ross Harrison reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 2,212 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 267 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 353 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Asante Three Rivers Medical Center
Acute Care Hospitals · Grants Pass, OROhsu Hospital And Clinics
Acute Care Hospitals · Portland, ORAsante Rogue Regional Medical Center
Acute Care Hospitals · Medford, ORColumbia Memorial Hospital
Critical Access Hospitals · Astoria, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ross Harrison's NPI number?
The NPI number for Ross Harrison is 1841610920. It was assigned to this individual provider in the NPPES registry on April 16, 2014.
Where is Ross Harrison located?
Ross Harrison practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (352) 598-1458.
What is Ross Harrison's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.
Is Ross Harrison enrolled in Medicare?
Yes. Ross Harrison is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ross Harrison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ross Harrison reassigns Medicare benefits to 3 organizations: University Professional Services (Portland, OR), Asante (Medford, OR) and Asante Physician Partners (Medford, OR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ross Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ross Harrison accept?
Health plans from Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Ross Harrison as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ross Harrison affiliated with any hospitals?
According to CMS data, Ross Harrison is affiliated with Asante Three Rivers Medical Center, Ohsu Hospital And Clinics, Asante Rogue Regional Medical Center and Columbia Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ross Harrison was last updated on August 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.