DR. MARCEL MICHAEL TAM MD, MBA
NPI 1083978472
Student in an Organized Health Care Education/Training Program in Portland, OR
About Dr. Marcel Michael Tam Md, Mba NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARCEL MICHAEL TAM MD, MBA (NPI 1083978472) is an individual student in an organized health care education/training program in Portland, Oregon and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Marcel Michael Tam Md, Mba is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marcel Tam reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97209
- Reassigned Medicare billing, Oregon enrollment
- 3,207 clinicians in this Medicare group
Warm Springs, OR 97761
- Reassigned Medicare billing, Texas enrollment
- 22 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 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 Marcel Tam's NPI number?
The NPI number for Marcel Tam is 1083978472. It was assigned to this individual provider in the NPPES registry on June 29, 2012.
Where is Marcel Tam located?
Marcel Tam practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-8211.
What is Marcel Tam's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Marcel Tam enrolled in Medicare?
Yes. Marcel Tam is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marcel Tam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcel Tam reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of The Northwest (Portland, OR) and Warm Springs Health And Wellness Dhhs Ihs Warm Springs Service Unit (Warm Springs, OR). 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 Marcel Tam'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 Marcel Tam was last updated on May 27, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Marcel Michael Tam, MD, MBA · NPI 1083978472
Student in an Organized Health Care Education/Training Program provider in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 29, 2012.
## Identity
- **NPI:** 1083978472 (Entity type: Individual)
- **Enumerated:** June 29, 2012
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3011
- **Phone:** (503) 494-8211
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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 1649722034, Portland, OR); Warm Springs Health And Wellness Dhhs Ihs Warm Springs Service Unit (NPI 1417084708, Warm Springs, OR) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 27, 2014
---
Source: [NPI Profile](https://npiprofile.com/npi/1083978472) · Data from the CMS NPPES public registry.