DR. KARI T MAZUR MD
NPI 1871797340
Hospitalist in Portland, OR
About Dr. Kari T Mazur Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KARI T MAZUR MD (NPI 1871797340) is an individual hospitalist provider in Portland, Oregon, licensed in Oregon (MD28424) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and maintains a secondary practice location in Polson.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 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
Dr. Kari T Mazur 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 Kari Mazur reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Banks, OR 97106
- Reassigned Medicare billing, Oregon enrollment
- Also billed through NPI 1699146159 (Oregon)
- 206 clinicians in this Medicare group
Mt Hood, OR 97041
- Reassigned Medicare billing, Oregon enrollment
- Medicare enrollment name: Providence Health & Services Oregon
- 267 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence St Vincent Medical Center
Acute Care Hospitals · Portland, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 97225
PORTLAND, OR 97225
PORTLAND, OR 97225
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 Kari Mazur's NPI number?
The NPI number for Kari Mazur is 1871797340. It was assigned to this individual provider in the NPPES registry on June 11, 2007.
Where is Kari Mazur located?
Kari Mazur practices at 9205 SW Barnes Rd, Portland, OR 97225. The listed phone number is (503) 216-2906.
What is Kari Mazur's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Kari Mazur enrolled in Medicare?
Yes. Kari Mazur 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 Kari Mazur's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kari Mazur reassigns Medicare benefits to 3 organizations: Providence Health & Services Oregon (Portland, OR), Northwest Medical Foundation Of Tillamook (Banks, OR) and Providence Hood River Memorial Hospital (Mt Hood, 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 Kari Mazur's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kari Mazur accept?
Health plans from Mountain Health CO-OP list Kari Mazur 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 Kari Mazur affiliated with any hospitals?
According to CMS data, Kari Mazur is affiliated with Providence St Vincent Medical Center.
When was this NPI record last updated?
The NPPES record for Kari Mazur was last updated on July 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Kari T Mazur, MD · NPI 1871797340
Hospitalist physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 11, 2007.
## Identity
- **NPI:** 1871797340 (Entity type: Individual)
- **Enumerated:** June 11, 2007
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** MD28424 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9205 SW BARNES RD, Portland, OR 97225-6603
- **Phone:** (503) 216-2906 · **Fax:** (503) 216-4114
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Providence Health & Services Oregon (NPI 1053403394, Portland, OR); Northwest Medical Foundation Of Tillamook (NPI 1043740616, Banks, OR); Providence Hood River Memorial Hospital (NPI 1437355955, Mt Hood, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2004
## Record status
- **NPPES last updated:** July 27, 2021
- **Other identifiers:** Other P00650732 (OR); Medicaid 026188 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1871797340) · Data from the CMS NPPES public registry.