AILEEN SIEKMAN
NPI 1275519563
Internal Medicine in St Louis Park, MN
About Aileen Siekman NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AILEEN SIEKMAN (NPI 1275519563) is an individual internal medicine provider in St Louis Park, Minnesota, licensed in Minnesota (25696) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (1979).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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
Aileen Siekman 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 Aileen Siekman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
St Louis Park, MN 55416
- Reassigned Medicare billing, Minnesota enrollment
- 2,527 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 55416 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS PARK, MN 55416
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 Aileen Siekman's NPI number?
The NPI number for Aileen Siekman is 1275519563. It was assigned to this individual provider in the NPPES registry on December 19, 2005. The provider is also known as Deborah Mangham.
Where is Aileen Siekman located?
Aileen Siekman practices at 3525 Monterey Dr, St Louis Park, MN 55416. The listed phone number is (952) 993-6200.
What is Aileen Siekman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Aileen Siekman enrolled in Medicare?
Yes. Aileen Siekman 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 Aileen Siekman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aileen Siekman reassigns Medicare benefits to Park Nicollet Clinic (St Louis Park, MN). 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 Aileen Siekman'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 Aileen Siekman was last updated on March 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Aileen Siekman · NPI 1275519563
Internal Medicine physician in St Louis Park, Minnesota. Individual provider, active in the CMS NPPES registry since December 19, 2005.
## Identity
- **NPI:** 1275519563 (Entity type: Individual)
- **Enumerated:** December 19, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 25696 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 3525 MONTEREY DR, St Louis Park, MN 55416-5275
- **Phone:** (952) 993-6200
## 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:** Park Nicollet Clinic (NPI 1063897593, St Louis Park, MN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 1979
## Record status
- **NPPES last updated:** March 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1275519563) · Data from the CMS NPPES public registry.