DR. DIEGO JOHN MUILENBURG M.D.
NPI 1295716926
Surgery in Springfield, OR
About Dr. Diego John Muilenburg M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIEGO JOHN MUILENBURG M.D. (NPI 1295716926) is an individual surgery provider in Springfield, Oregon, licensed in Oregon (MD166758) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Sacred Heart Medical Center - Riverbend, and maintains a secondary practice location in Springfield.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 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. Diego John Muilenburg 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
2Medicare enrollment records show Diego Muilenburg reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, OR 97477
- Reassigned Medicare billing, Oregon enrollment
- 278 clinicians in this Medicare group
Springfield, OR 97477
- Reassigned Medicare billing, Oregon enrollment
- 412 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sacred Heart Medical Center - Riverbend
Acute Care Hospitals · Springfield, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97477 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, OR 97477
SPRINGFIELD, OR 97477
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 Diego Muilenburg's NPI number?
The NPI number for Diego Muilenburg is 1295716926. It was assigned to this individual provider in the NPPES registry on November 9, 2005.
Where is Diego Muilenburg located?
Diego Muilenburg practices at Peacehealth Surgical Specialities 3355 Riverbend Dr., Suite 300, Springfield, OR 97477. The listed phone number is (541) 222-8333.
What is Diego Muilenburg's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Diego Muilenburg enrolled in Medicare?
Yes. Diego Muilenburg 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 Diego Muilenburg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diego Muilenburg reassigns Medicare benefits to 2 organizations: Peacehealth (Springfield, OR) and Peacehealth Medical Group (Springfield, 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 Diego Muilenburg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diego Muilenburg accept?
Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list Diego Muilenburg 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 Diego Muilenburg affiliated with any hospitals?
According to CMS data, Diego Muilenburg is affiliated with Sacred Heart Medical Center - Riverbend.
When was this NPI record last updated?
The NPPES record for Diego Muilenburg was last updated on February 28, 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.
# Dr. Diego John Muilenburg, M.D. · NPI 1295716926
Surgery physician in Springfield, Oregon. Individual provider, active in the CMS NPPES registry since November 9, 2005.
## Identity
- **NPI:** 1295716926 (Entity type: Individual)
- **Enumerated:** November 9, 2005
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** MD166758 (Oregon)
- **Sole proprietor:** Yes
## Practice location
- **Address:** PEACEHEALTH SURGICAL SPECIALITIES, 3355 RIVERBEND DR., SUITE 300, Springfield, OR 97477-8800
- **Phone:** (541) 222-8333 · **Fax:** (541) 222-8320
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Peacehealth (NPI 1740223874, Springfield, OR); Peacehealth Medical Group (NPI 1881860856, Springfield, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** February 28, 2024
- **Other identifiers:** Medicaid 500675780 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1295716926) · Data from the CMS NPPES public registry.