ELLEN KNOLL DIEGO M.D.
NPI 1538553136
Pediatrics in Minneapolis, MN
About Ellen Knoll Diego M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN KNOLL DIEGO M.D. (NPI 1538553136) is an individual pediatrics provider in Minneapolis, Minnesota, licensed in Minnesota (71237) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 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
Ellen Knoll Diego 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
8Medicare enrollment records show Ellen Diego reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Minneapolis, MN 55414
- Reassigned Medicare billing, Minnesota enrollment
- 1,453 clinicians in this Medicare group
Minneapolis, MN 55455
- Reassigned Medicare billing, Minnesota enrollment
- 3,633 clinicians in this Medicare group
Minneapolis, MN 55455
- Reassigned Medicare billing, Minnesota enrollment
- 1,662 clinicians in this Medicare group
Minneapolis, MN 55454
- Reassigned Medicare billing, Minnesota enrollment
- 671 clinicians in this Medicare group
Minneapolis, MN 55454
- Reassigned Medicare billing, Minnesota enrollment
- 4,038 clinicians in this Medicare group
Saint Paul, MN 55104
- Reassigned Medicare billing, Minnesota enrollment
- 2,361 clinicians in this Medicare group
Saint Paul, MN 55104
- Reassigned Medicare billing, Minnesota enrollment
- 1,178 clinicians in this Medicare group
Woodbury, MN 55125
- Reassigned Medicare billing, Minnesota enrollment
- 955 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55414 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MINNEAPOLIS, MN 55414
MINNEAPOLIS, MN 55414
MINNEAPOLIS, MN 55414
MINNEAPOLIS, MN 55414
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 Ellen Diego's NPI number?
The NPI number for Ellen Diego is 1538553136. It was assigned to this individual provider in the NPPES registry on March 23, 2015. The provider is also known as Ellen Patricia Knoll.
Where is Ellen Diego located?
Ellen Diego practices at 720 Washington Ave SE Ste 200, Minneapolis, MN 55414. The listed phone number is (603) 991-9474.
What is Ellen Diego's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ellen Diego enrolled in Medicare?
Yes. Ellen Diego 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 Ellen Diego's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Diego reassigns Medicare benefits to 8 organizations: University Of Minnesota Physicians (Minneapolis, MN), Fairview Express Care (Minneapolis, MN), University Of Minnesota Health Clinics And Surgery Center Inc (Minneapolis, MN), Fairview Bethesda Hospital (Minneapolis, MN), Fairview Health Services (Minneapolis, MN) and 3 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 Ellen Diego's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ellen Diego accept?
Health plans from Sanford Health Plan list Ellen Diego 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 Ellen Diego was last updated on June 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Ellen Knoll Diego, M.D. · NPI 1538553136
Pediatrics physician in Minneapolis, Minnesota. Individual provider, active in the CMS NPPES registry since March 23, 2015.
## Identity
- **NPI:** 1538553136 (Entity type: Individual)
- **Enumerated:** March 23, 2015
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 71237 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 720 WASHINGTON AVE SE STE 200, Minneapolis, MN 55414-2924
- **Phone:** (603) 991-9474
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): University Of Minnesota Physicians (NPI 1477598118, Minneapolis, MN); Fairview Express Care (NPI 1629224258, Minneapolis, MN); University Of Minnesota Health Clinics And Surgery Center Inc (NPI 1003485004, Minneapolis, MN); Fairview Bethesda Hospital (NPI 1275412561, Minneapolis, MN); Fairview Health Services (NPI 1013994359, Minneapolis, MN); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Cincinnati College Of Medicine, class of 2015
## Record status
- **NPPES last updated:** June 16, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1538553136) · Data from the CMS NPPES public registry.