KARLYN STOLTMAN MESSER MD
NPI 1659878775
Radiology - Diagnostic Radiology in St Louis Park, MN
About Karlyn Stoltman Messer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARLYN STOLTMAN MESSER MD (NPI 1659878775) is an individual diagnostic radiology provider in St Louis Park, Minnesota, licensed in Minnesota (66853) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Park Nicollet Methodist Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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
Karlyn Stoltman Messer Md 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 Karlyn Messer reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
St Louis Park, MN 55416
- Reassigned Medicare billing, Minnesota enrollment
- Medicare enrollment name: Park Nicollet Clinic
- 2,527 clinicians in this Medicare group
Minneapolis, MN 55416
- Reassigned Medicare billing, Minnesota enrollment
- 2,302 clinicians in this Medicare group
St Louis Park, MN 55416
- Reassigned Medicare billing, Minnesota enrollment
- 1,453 clinicians in this Medicare group
Edina, MN 55435
- Reassigned Medicare billing, Minnesota enrollment
- 3,633 clinicians in this Medicare group
Bloomington, MN 55431
- Reassigned Medicare billing, Minnesota enrollment
- 693 clinicians in this Medicare group
Minneapolis, MN 55454
- Reassigned Medicare billing, Minnesota enrollment
- 2,373 clinicians in this Medicare group
Minneapolis, MN 55455
- Reassigned Medicare billing, Minnesota enrollment
- 1,662 clinicians in this Medicare group
Saint Paul, MN 55104
- Reassigned Medicare billing, Minnesota enrollment
- 2,361 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 14
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Park Nicollet Methodist Hospital
Acute Care Hospitals · Saint Louis Park, MNHutchinson Health
Acute Care Hospitals · Hutchinson, MNOlivia Hospital & Clinic
Critical Access Hospitals · Olivia, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55426 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.
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.
ST LOUIS PARK, MN 55426
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 Karlyn Messer's NPI number?
The NPI number for Karlyn Messer is 1659878775. It was assigned to this individual provider in the NPPES registry on April 6, 2018. The provider is also known as Karlyn Therese Stoltman MD.
Where is Karlyn Messer located?
Karlyn Messer practices at 6500 Excelsior Blvd, St Louis Park, MN 55426. The listed phone number is (952) 993-3123.
What is Karlyn Messer's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Karlyn Messer enrolled in Medicare?
Yes. Karlyn Messer 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 Karlyn Messer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karlyn Messer reassigns Medicare benefits to 8 organizations: Park Nicollet Methodist Hospital (St Louis Park, MN), Fairview Clinics (Minneapolis, MN), University Of Minnesota Physicians (St Louis Park, MN), Fairview Express Care (Edina, MN), Tria Orthopaedic Center LLC (Bloomington, 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 Karlyn Messer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Karlyn Messer affiliated with any hospitals?
According to CMS data, Karlyn Messer is affiliated with Park Nicollet Methodist Hospital, Hutchinson Health and Olivia Hospital & Clinic.
When was this NPI record last updated?
The NPPES record for Karlyn Messer was last updated on July 23, 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.
# Karlyn Stoltman Messer, MD · NPI 1659878775
Diagnostic Radiology physician in St Louis Park, Minnesota. Individual provider, active in the CMS NPPES registry since April 6, 2018.
## Identity
- **NPI:** 1659878775 (Entity type: Individual)
- **Enumerated:** April 6, 2018
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 66853 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 6500 EXCELSIOR BLVD, St Louis Park, MN 55426-4702
- **Phone:** (952) 993-3123
## 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): Park Nicollet Methodist Hospital (NPI 1194113217, St Louis Park, MN); Fairview Clinics (NPI 1447442132, Minneapolis, MN); University Of Minnesota Physicians (NPI 1144368531, St Louis Park, MN); Fairview Express Care (NPI 1538542204, Edina, MN); Tria Orthopaedic Center LLC (NPI 1346624384, Bloomington, MN); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** July 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1659878775) · Data from the CMS NPPES public registry.