THE PORTLAND CLINIC LLP
NPI 1558379099
Internal Medicine in Portland, OR
About The Portland Clinic Llp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THE PORTLAND CLINIC LLP (NPI 1558379099) is a healthcare organization registered as an internal medicine in Portland, Oregon and active in the NPI registry since August 2006. The organization lists Amy L Mulcaster, Cmo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 15
Other Names 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
The Portland Clinic Llp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
105Medicare enrollment records show 105 clinicians reassign Medicare billing to The Portland Clinic LLP, which bills Medicare for the services they deliver. Of these, 16 practice at this address and 71 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 24
Nearest to this location (20)
See all 105Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Portland Clinic's NPI number?
The NPI number for Portland Clinic is 1558379099. It was assigned to this organization in the NPPES registry on August 3, 2006. The provider is also known as The Portland Clinic LLP.
Where is Portland Clinic located?
Portland Clinic is located at 800 SW 13th Ave, Portland, OR 97205. The listed phone number is (503) 221-0161.
What is Portland Clinic's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Portland Clinic enrolled in Medicare?
Yes. Portland Clinic is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Portland Clinic?
According to the CMS Revalidation Reassignment List (October 2026 release), 105 clinicians in 24 Medicare specialties reassign their Medicare billing to Portland Clinic. A 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 the clinician's services. The largest specialties are Diagnostic Radiology (23), Internal Medicine (21) and Family Practice (10). Of these, 16 practice at this address and 71 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Portland Clinic accept?
Health plans from Anthem Blue Cross and Blue Shield, BlueCross BlueShield of Tennessee, BridgeSpan Health Company, Moda Health Plan, Inc. and PacificSource Health Plans and 2 other insurers list Portland Clinic 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 Portland Clinic was last updated on April 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# The Portland Clinic Llp · NPI 1558379099
Internal Medicine organization in Portland, Oregon. Organization record, active in the CMS NPPES registry since August 3, 2006.
## Identity
- **NPI:** 1558379099 (Entity type: Organization)
- **Enumerated:** August 3, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Legal business name:** Portland Clinic
- **Organization subpart:** No
- **Authorized official:** Amy Mulcaster, CMO
## Practice location
- **Address:** 800 SW 13TH AVE, Portland, OR 97205
- **Phone:** (503) 221-0161 · **Fax:** (503) 221-4451
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 105 clinicians in 24 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Diagnostic Radiology (23), Internal Medicine (21), Family Practice (10); 16 practice at this address and 71 within 10 miles; [full list](https://npiprofile.com/npi/1558379099/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 30, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1558379099) · Data from the CMS NPPES public registry.