TIMOTHY JAMES ZERWIC OTD
NPI 1538699376
Occupational Therapist - Hand in Portland, OR
About Timothy James Zerwic Otd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMOTHY JAMES ZERWIC OTD (NPI 1538699376) is an individual hand provider in Portland, Oregon, licensed in Oregon (379770) and active in the NPI registry since June 2017. He maintains a secondary practice location in Keesler Afb.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Timothy James Zerwic Otd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Timothy Zerwic reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97227
- Reassigned Medicare billing, Oregon enrollment
- 3,207 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.
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 97227
PORTLAND, OR 97227
PORTLAND, OR 97227
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 Timothy Zerwic's NPI number?
The NPI number for Timothy Zerwic is 1538699376. It was assigned to this individual provider in the NPPES registry on June 14, 2017.
Where is Timothy Zerwic located?
Timothy Zerwic practices at 3550 N Interstate Ave, Portland, OR 97227. The listed phone number is (800) 813-2000.
What is Timothy Zerwic's specialty?
The primary specialty registered for this NPI is Occupational Therapist, specializing in Hand, with taxonomy code 225XH1200X.
Is Timothy Zerwic enrolled in Medicare?
Yes. Timothy Zerwic is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Timothy Zerwic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Zerwic reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Portland, OR). 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 Timothy Zerwic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Timothy Zerwic was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Timothy James Zerwic, OTD · NPI 1538699376
Hand provider in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 14, 2017.
## Identity
- **NPI:** 1538699376 (Entity type: Individual)
- **Enumerated:** June 14, 2017
- **Primary specialty:** Occupational Therapist - Hand · taxonomy 225XH1200X
- **State license:** 379770 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3550 N INTERSTATE AVE, Portland, OR 97227-1196
- **Phone:** (800) 813-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Kaiser Foundation Health Plan Of The Northwest (NPI 1093043424, Portland, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1538699376) · Data from the CMS NPPES public registry.