STEPHAN ARMANDO CASTRO MD
NPI 1144783580
Psychiatry & Neurology - Neuromuscular Medicine in Portland, OR
About Stephan Armando Castro Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHAN ARMANDO CASTRO MD (NPI 1144783580) is an individual neuromuscular medicine provider in Portland, Oregon, licensed in Oregon (MD219687) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and is a graduate of Temple University School Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Stephan Armando Castro Md 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 Reassignment
Medicare enrollment records show Stephan Castro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 2,212 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
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ohsu Hospital And Clinics
Acute Care Hospitals · Portland, ORProvidence Portland Medical Center
Acute Care Hospitals · Portland, ORPeacehealth Southwest Medical Center
Acute Care Hospitals · Vancouver, WAOther 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 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
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 Stephan Castro's NPI number?
The NPI number for Stephan Castro is 1144783580. It was assigned to this individual provider in the NPPES registry on April 11, 2019.
Where is Stephan Castro located?
Stephan Castro practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (502) 494-7772.
What is Stephan Castro's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neuromuscular Medicine, with taxonomy code 2084N0008X.
Is Stephan Castro enrolled in Medicare?
Yes. Stephan Castro 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 organization bills Medicare for Stephan Castro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephan Castro reassigns Medicare benefits to University Professional Services (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 Stephan Castro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephan Castro accept?
Health plans from Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Stephan Castro 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.
Is Stephan Castro affiliated with any hospitals?
According to CMS data, Stephan Castro is affiliated with Ohsu Hospital And Clinics, Providence Portland Medical Center and Peacehealth Southwest Medical Center.
When was this NPI record last updated?
The NPPES record for Stephan Castro was last updated on December 16, 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.
# Stephan Armando Castro, MD · NPI 1144783580
Neuromuscular Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since April 11, 2019.
## Identity
- **NPI:** 1144783580 (Entity type: Individual)
- **Enumerated:** April 11, 2019
- **Primary specialty:** Psychiatry & Neurology - Neuromuscular Medicine · taxonomy 2084N0008X
- **State license:** MD219687 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3011
- **Phone:** (502) 494-7772
## 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:** University Professional Services (NPI 1376709535, Portland, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** December 16, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1144783580) · Data from the CMS NPPES public registry.