DR. STEVE FLINKENSTEIN D.O.
NPI 1821209255
Internal Medicine - Rheumatology in Bemidji, MN
About Dr. Steve Flinkenstein D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVE FLINKENSTEIN D.O. (NPI 1821209255) is an individual rheumatology provider in Bemidji, Minnesota, licensed in Florida (OS18600) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Hendricks Regional Health, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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. Steve Flinkenstein D.o. 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
3Medicare enrollment records show Steve Flinkenstein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bemidji, MN 56601
- Reassigned Medicare billing, Minnesota enrollment
- 607 clinicians in this Medicare group
Princeton, MN 55371
- Reassigned Medicare billing, Minnesota enrollment
- 3,633 clinicians in this Medicare group
Vadnais Heights, MN 55127
- 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 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hendricks Regional Health
Acute Care Hospitals · Danville, INEssentia Health St Joseph's Medical Center
Acute Care Hospitals · Brainerd, MNSanford Bemidji Medical Center
Acute Care Hospitals · Bemidji, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 56601 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.
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 Steve Flinkenstein's NPI number?
The NPI number for Steve Flinkenstein is 1821209255. It was assigned to this individual provider in the NPPES registry on May 25, 2007.
Where is Steve Flinkenstein located?
Steve Flinkenstein practices at 1233 34th St NW, Bemidji, MN 56601. The listed phone number is (218) 333-5000.
What is Steve Flinkenstein's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Steve Flinkenstein enrolled in Medicare?
Yes. Steve Flinkenstein 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 Steve Flinkenstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steve Flinkenstein reassigns Medicare benefits to 3 organizations: Sanford Health Of Northern Minnesota (Bemidji, MN), Fairview Express Care (Princeton, MN) and Healtheast Medical Research Institute (Vadnais Heights, MN). 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 Steve Flinkenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steve Flinkenstein accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, CareSource and Cigna HealthCare of Florida, Inc. and 3 other insurers list Steve Flinkenstein 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 Steve Flinkenstein affiliated with any hospitals?
According to CMS data, Steve Flinkenstein is affiliated with Hendricks Regional Health, Essentia Health St Joseph's Medical Center and Sanford Bemidji Medical Center.
When was this NPI record last updated?
The NPPES record for Steve Flinkenstein was last updated on May 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Steve Flinkenstein, D.O. · NPI 1821209255
Rheumatology physician in Bemidji, Minnesota. Individual provider, active in the CMS NPPES registry since May 25, 2007.
## Identity
- **NPI:** 1821209255 (Entity type: Individual)
- **Enumerated:** May 25, 2007
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** OS18600 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 1233 34TH ST NW, Bemidji, MN 56601-5112
- **Phone:** (218) 333-5000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Sanford Health Of Northern Minnesota (NPI 1780628149, Bemidji, MN); Fairview Express Care (NPI 1841673647, Princeton, MN); Healtheast Medical Research Institute (NPI 1639125503, Vadnais Heights, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** May 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821209255) · Data from the CMS NPPES public registry.