KATHERINE ANNE LOEWEN M.D.
NPI 1639353451
Emergency Medicine in Phoenix, AZ
About Katherine Anne Loewen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE ANNE LOEWEN M.D. (NPI 1639353451) is an individual emergency medicine provider in Phoenix, Arizona, licensed in Arizona (37615) and active in the NPI registry since December 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Katherine Anne Loewen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Katherine Loewen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 155 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85020 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.
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 Katherine Loewen's NPI number?
The NPI number for Katherine Loewen is 1639353451. It was assigned to this individual provider in the NPPES registry on December 28, 2007. The provider is also known as Katherine Anne Sutherland M.D..
Where is Katherine Loewen located?
Katherine Loewen practices at 250 E Dunlap Ave, Phoenix, AZ 85020. The listed phone number is (602) 870-6316.
What is Katherine Loewen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Katherine Loewen enrolled in Medicare?
Yes. Katherine Loewen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Katherine Loewen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Loewen reassigns Medicare benefits to San Francisco Emergency Medical Associates (San Francisco, CA). The 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 Katherine Loewen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Loewen accept?
Health plans from Blue Cross Blue Shield of Arizona list Katherine Loewen 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.
When was this NPI record last updated?
The NPPES record for Katherine Loewen was last updated on May 6, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.