AMERICAN ARTHRITIS & RHEUMATOLOGY ASSOCIATES -OR LLC
NPI 1467235952
Internal Medicine - Rheumatology in Portland, OR

Q: What is American Arthritis & Rheumatology Associates -Or LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Active since August 17, 2023

1585 SW MARLOW AVE, PORTLAND, OR 97225(971) 384-5722(971) 384-5723 Get Directions Write a Review

NPPES record last updated: August 17, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About American Arthritis & Rheumatology Associates -or Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AMERICAN ARTHRITIS & RHEUMATOLOGY ASSOCIATES -OR LLC (NPI 1467235952) is a healthcare organization registered as a rheumatology in Portland, Oregon and active in the NPI registry since August 2023. The organization lists Kathryn N Garrett, Evp, as its authorized official.

NPPES Registry Identity

NPI1467235952

Entity TypeOrganization

Primary Taxonomy207RR0500X

Legal Business NameAMERICAN ARTHRITIS & RHEUMATOLOGY ASSOCIATES -OR LLC

Location Address1585 SW MARLOW AVEPortland, OR 97225-5176

Mailing Address2255 Glades Rd Ste 228wBoca Raton, FL 33431-7391 · (561) 699-7101 · Fax (561) 658-6142

Phone(971) 384-5722

Fax(971) 384-5723

Organization SubpartNo

Authorized OfficialKathryn N GarrettEvp · (561) 699-7101

Enumeration DateAugust 17, 2023

NPPES CertifiedAugust 17, 2023

✔ NPI 1467235952 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

1585 SW MARLOW AVE, Portland, OR 97225

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Regence BlueCross BlueShield of Oregon.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)

American Arthritis & Rheumatology Associates -or Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to American Arthritis & Rheumatology Associates -Or LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Kelly Portnoff, M.D.

Rheumatology

NPI 1255422481

800 SW 13TH AVE
Portland, OR 97205

(503) 221-0161

✔ PECOS✔ Accepts Medicare4.9 mi

Source: 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 American Arthritis & Rheumatology Associates -Or LLC's NPI number?

The NPI number for American Arthritis & Rheumatology Associates -Or LLC is 1467235952. It was assigned to this organization in the NPPES registry on August 17, 2023.

Where is American Arthritis & Rheumatology Associates -Or LLC located?

American Arthritis & Rheumatology Associates -Or LLC is located at 1585 SW Marlow Ave, Portland, OR 97225. The listed phone number is (971) 384-5722.

What is American Arthritis & Rheumatology Associates -Or LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is American Arthritis & Rheumatology Associates -Or LLC enrolled in Medicare?

Yes. American Arthritis & Rheumatology Associates -Or LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through American Arthritis & Rheumatology Associates -Or LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Rheumatology) reassigns their Medicare billing to American Arthritis & Rheumatology Associates -Or LLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does American Arthritis & Rheumatology Associates -Or LLC accept?

Health plans from BridgeSpan Health Company and Regence BlueCross BlueShield of Oregon list American Arthritis & Rheumatology Associates -Or LLC 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 American Arthritis & Rheumatology Associates -Or LLC was last updated on August 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.