DR. JEFFERSON TIU LOA M.D.
NPI 1336304773
Internal Medicine in Corvallis, OR
About Dr. Jefferson Tiu Loa M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFERSON TIU LOA M.D. (NPI 1336304773) is an individual internal medicine provider in Corvallis, Oregon, licensed in Oregon (MD176888) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Regional Medical Center, and maintains a secondary practice location in Salem.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Jefferson Tiu Loa M.d. 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 Reassignments
9Medicare enrollment records show Jefferson Loa reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Corvallis, OR 97330
- Reassigned Medicare billing, Oregon enrollment
- 522 clinicians in this Medicare group
Corvallis, OR 97333
- Reassigned Medicare billing, Oregon enrollment
- Also billed through NPI 1508122763 (Oregon)
- 416 clinicians in this Medicare group
Albany, OR 97321
- Reassigned Medicare billing, Oregon enrollment
- 432 clinicians in this Medicare group
Salem, OR 97317
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1871848457 (Washington)
- 3,207 clinicians in this Medicare group
Salem, OR 97301
- Reassigned Medicare billing, Oregon enrollment
- 625 clinicians in this Medicare group
Toledo, OR 97391
- Reassigned Medicare billing, Oregon enrollment
- 332 clinicians in this Medicare group
Lincoln City, OR 97367
- Reassigned Medicare billing, Oregon enrollment
- 277 clinicians in this Medicare group
Portland, OR 97220
- Reassigned Medicare billing, Oregon enrollment
- 48 clinicians in this Medicare group
Lanham, MD 20706
- Reassigned Medicare billing, Oregon enrollment
- 43 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Regional Medical Center
Acute Care Hospitals · Corvallis, ORSalem Hospital
Acute Care Hospitals · Salem, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97330 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
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 Jefferson Loa's NPI number?
The NPI number for Jefferson Loa is 1336304773. It was assigned to this individual provider in the NPPES registry on July 24, 2008.
Where is Jefferson Loa located?
Jefferson Loa practices at 3600 NW Samaritan Dr, Corvallis, OR 97330. The listed phone number is (541) 768-5111.
What is Jefferson Loa's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jefferson Loa enrolled in Medicare?
Yes. Jefferson Loa 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 organizations bill Medicare for Jefferson Loa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jefferson Loa reassigns Medicare benefits to 9 organizations: Good Samaritan Hospital Corvallis (Corvallis, OR), Mid-Valley Healthcare, Inc. (Corvallis, OR), Albany General Hospital (Albany, OR), South Salem Rehabilitation, LLC (Salem, OR), Salem Health (Salem, OR) and 4 more organizations, listed in the Medicare section above. 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 Jefferson Loa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jefferson Loa accept?
Health plans from Moda Health Plan, Inc. list Jefferson Loa 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 Jefferson Loa affiliated with any hospitals?
According to CMS data, Jefferson Loa is affiliated with Good Samaritan Regional Medical Center and Salem Hospital.
When was this NPI record last updated?
The NPPES record for Jefferson Loa was last updated on May 17, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Jefferson Tiu Loa, M.D. · NPI 1336304773
Internal Medicine physician in Corvallis, Oregon. Individual provider, active in the CMS NPPES registry since July 24, 2008.
## Identity
- **NPI:** 1336304773 (Entity type: Individual)
- **Enumerated:** July 24, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD176888 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3600 NW SAMARITAN DR, Corvallis, OR 97330-5472
- **Phone:** (541) 768-5111
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Good Samaritan Hospital Corvallis (NPI 1962453134, Corvallis, OR); Mid-Valley Healthcare, Inc. (NPI 1164942611, Corvallis, OR); Albany General Hospital (NPI 1306679816, Albany, OR); South Salem Rehabilitation, LLC (NPI 1215071998, Salem, OR); Salem Health (NPI 1265431829, Salem, OR); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** May 17, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1336304773) · Data from the CMS NPPES public registry.