Individual provider Active NPI

Steve Flinkenstein, D.O.

  • Rheumatology Physician
  • Bemidji, MN
National Provider Identifier
1821209255
Registry record updated May 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
OS18600 Issued in FL
Practice address
1233 34TH St NW
Bemidji, MN 56601-5112
Phone
(218) 333-5000
NPI assigned
May 25, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 15, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Rheumatology Physician 207RR0500X 57210 MN
Rheumatology Physician 207RR0500X OS18600 FL Primary

Addresses

Primary practice location

1233 34TH St NW
Bemidji, MN 56601-5112

Mailing address

PO Box 5074
Sioux Falls, SD 57117-5074

Other practice location 1

4700 Sheridan St Ste C
Hollywood, FL 33021-3416
Phone (954) 961-3252

Other practice location 2

13400 SW 10th St
Pembroke Pines, FL 33027-1833
Phone (954) 961-3252

Other practice location 3

2024 S 6th St
Brainerd, MN 56401-4529
Phone (218) 828-2880

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MN
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20131025000624 MN Practitioner - RheumatologyPractitioner - Internal Medicine 3779678461 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
RheumatologyAlso: Internal Medicine
Education
Other, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Sanford Health of Northern MinnesotaGroup PAC ID 5597725168, shared by 21 NPIs, 349 clinicians

Practice addresses (Care Compare)

1233 34TH St NW
Bemidji, MN 56601-5112
Phone (218) 333-5522

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy, Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Healtheast Medical Research Institute Current Accepting new patients
Healtheast Medical Research Institute CurrentSince Mar 9, 2021 Accepting new patients
Healtheast Medical Research Institute CurrentSince Mar 9, 2021 Accepting new patients
Hendricks County Hospital CurrentSince Oct 28, 2024 Accepting new patients
Healtheast Medical Research Institute Current Accepting new patients
Fairview Express Care CurrentSince Dec 11, 2020 Accepting new patients
St. Joseph'S Medical Center CurrentSince Jan 5, 2026 Accepting new patients
Healtheast Medical Research Institute Current Accepting new patients
Fairview Express Care CurrentSince Dec 11, 2020 Accepting new patients
Fairview Express Care Current Accepting new patients
Healtheast Medical Research Institute Current Accepting new patients
Healtheast Medical Research Institute Current Accepting new patients
Hendricks County Hospital Current Accepting new patients
Hendricks County Hospital Rheumatology CurrentSince Oct 28, 2024 Accepting new patients
St Joseph'S Medical Center CurrentSince Jan 5, 2026 Accepting new patients
Wellstar South Cobb Rheumatology, LLC Rheumatology Past Accepting new patients
Hendricks County Hospital Past Accepting new patients
Hendricks County Hospital Past Accepting new patients

Locations

8244 E US Highway 36
Ste 1340
Avon, IN 46123
Phone (317) 520-5510

8244 E US Highway 36
Ste 1100
Avon, IN 46123
Phone (317) 272-7500

1100 Southfield Dr
Ste 1330
Plainfield, IN 46168
Phone (317) 837-5510

1100 Southfield Dr
Ste 1370
Plainfield, IN 46168
Phone (317) 837-5570

523 N 3rd St
Brainerd, MN 56401
Phone (218) 828-7394

2024 S 6th St
Brainerd, MN 56401
Phone (218) 828-2880

6936 Pine Arbor Dr S
Ste 100
Cottage Grove, MN 55016
Phone (651) 326-5800

2925 Chicago Ave
#10957
Minneapolis, MN 55407
Phone (612) 262-8640

2925 Chicago Ave
Minneapolis, MN 55407
Phone (612) 262-4813

717 Delaware St SE
Ste 340
Minneapolis, MN 55414
Phone (612) 625-3617

2945 Hazelwood St
Ste 100
Saint Paul, MN 55109
Phone (651) 232-7800

1390 University Ave W
Saint Paul, MN 55104
Phone (651) 232-4800

1700 University Ave W
Fl 1
Saint Paul, MN 55104
Phone (651) 232-2002

1099 Helmo Ave N
Ste 100
Saint Paul, MN 55128
Phone (651) 326-5300

1700 University Ave W
Fl 6
Saint Paul, MN 55104
Phone (651) 232-2273

1875 Woodwinds Dr
Woodbury, MN 55125
Phone (651) 232-6700

Interoperability endpoints

  • FHIR API: https://sehproxy.stelizabeth.com/arr-fhir/api/FHIR/R4

Organizations & group practices 18

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

View all 18

Hospital & facility affiliations 14

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 14

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1180051200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778803200000",
    "number": "1821209255",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 5074",
            "city": "SIOUX FALLS",
            "state": "SD",
            "postal_code": "571175074"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1233 34TH ST NW",
            "city": "BEMIDJI",
            "state": "MN",
            "postal_code": "566015112",
            "telephone_number": "218-333-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4700 Sheridan St Ste C",
            "address_purpose": "LOCATION",
            "city": "Hollywood",
            "state": "FL",
            "postal_code": "330213416",
            "country_code": "US",
            "telephone_number": "954-961-3252",
            "fax_number": "954-678-3007",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "13400 SW 10th St",
            "address_purpose": "LOCATION",
            "city": "Pembroke Pines",
            "state": "FL",
            "postal_code": "330271833",
            "country_code": "US",
            "telephone_number": "954-961-3252",
            "fax_number": "954-678-3007",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2024 S 6th St",
            "address_purpose": "LOCATION",
            "city": "Brainerd",
            "state": "MN",
            "postal_code": "564014529",
            "country_code": "US",
            "telephone_number": "218-828-2880",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLINKENSTEIN",
        "first_name": "STEVE",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-25",
        "last_updated": "2026-05-15",
        "certification_date": "2026-05-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "MN",
            "license": "57210",
            "primary": false
        },
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "FL",
            "license": "OS18600",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bemidji, MN

Sources for this page

Verify at the official NPI Registry.