NATHANIEL L KARLINS MD
NPI 1295752962
Radiology - Diagnostic Radiology in Duluth, MN
About Nathaniel L Karlins Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHANIEL L KARLINS MD (NPI 1295752962) is an individual diagnostic radiology provider in Duluth, Minnesota, licensed in Minnesota (34402) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Washington University School Of Medicine (1975).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Nathaniel L Karlins 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 Reassignment
Medicare enrollment records show Nathaniel Karlins reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fergus Falls, MN 56537
- Reassigned Medicare billing, Minnesota enrollment
- 183 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 55805 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.
DULUTH, MN 55805
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 Nathaniel Karlins's NPI number?
The NPI number for Nathaniel Karlins is 1295752962. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is Nathaniel Karlins located?
Nathaniel Karlins practices at 420 E 1st St, Duluth, MN 55805. The listed phone number is (218) 786-8364.
What is Nathaniel Karlins's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Nathaniel Karlins enrolled in Medicare?
Yes. Nathaniel Karlins 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 Nathaniel Karlins's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Karlins reassigns Medicare benefits to Lake Region Healthcare Corporation (Fergus Falls, 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 Nathaniel Karlins's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathaniel Karlins accept?
Health plans from Blue Cross Blue Shield of North Dakota list Nathaniel Karlins 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 Nathaniel Karlins was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.
# Nathaniel L Karlins, MD · NPI 1295752962
Diagnostic Radiology physician in Duluth, Minnesota. Individual provider, active in the CMS NPPES registry since July 17, 2006.
## Identity
- **NPI:** 1295752962 (Entity type: Individual)
- **Enumerated:** July 17, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 34402 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 420 E 1ST ST, Duluth, MN 55805-1901
- **Phone:** (218) 786-8364
## 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:** Lake Region Healthcare Corporation (NPI 1568353738, Fergus Falls, MN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Washington University School Of Medicine, class of 1975
## Record status
- **NPPES last updated:** October 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1295752962) · Data from the CMS NPPES public registry.