DR. JULIE LITTWIN D.O.
NPI 1528446523
Emergency Medicine in Clackamas, OR
About Dr. Julie Littwin D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JULIE LITTWIN D.O. (NPI 1528446523) is an individual emergency medicine provider in Clackamas, Oregon, licensed in Oregon (DO219871) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, is affiliated with Kaiser Sunnyside Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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. Julie Littwin D.o. 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
2Medicare enrollment records show Julie Littwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Clackamas, OR 97015
- Reassigned Medicare billing, Oregon and Washington enrollments
- Also billed through NPI 1871848457 (Washington)
- 3,207 clinicians in this Medicare group
Oak Park, IL 60304
- Reassigned Medicare billing, Illinois enrollment
- 124 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 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kaiser Sunnyside Medical Center
Acute Care Hospitals · Clackamas, ORKaiser Foundation Hospital Westside
Acute Care Hospitals · Hillsboro, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97015 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.
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
CLACKAMAS, OR 97015
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 Julie Littwin's NPI number?
The NPI number for Julie Littwin is 1528446523. It was assigned to this individual provider in the NPPES registry on May 11, 2015.
Where is Julie Littwin located?
Julie Littwin practices at 10180 SE Sunnyside Rd Emergency Care, Clackamas, OR 97015. The listed phone number is (503) 813-2000.
What is Julie Littwin's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Julie Littwin enrolled in Medicare?
Yes. Julie Littwin 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 Julie Littwin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Julie Littwin reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of The Northwest (Clackamas, OR) and Rush Oak Park ER Physicians Group (Oak Park, IL). 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 Julie Littwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Julie Littwin affiliated with any hospitals?
According to CMS data, Julie Littwin is affiliated with Kaiser Sunnyside Medical Center and Kaiser Foundation Hospital Westside.
When was this NPI record last updated?
The NPPES record for Julie Littwin was last updated on December 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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. Julie Littwin, D.O. · NPI 1528446523
Emergency Medicine physician in Clackamas, Oregon. Individual provider, active in the CMS NPPES registry since May 11, 2015.
## Identity
- **NPI:** 1528446523 (Entity type: Individual)
- **Enumerated:** May 11, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** DO219871 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 10180 SE SUNNYSIDE RD, EMERGENCY CARE, Clackamas, OR 97015-8970
- **Phone:** (503) 813-2000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of The Northwest (NPI 1174851505, Clackamas, OR); Rush Oak Park ER Physicians Group (NPI 1447260880, Oak Park, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 2015
## Record status
- **NPPES last updated:** December 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1528446523) · Data from the CMS NPPES public registry.