Konstantinos Siontis, MD

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

58218 Issued in MN

Practice address

200 1St St SW
Rochester, MN 55905

Phone

(507) 284-2511

NPI assigned

Jun 29, 2012

Last updated

Oct 3, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MN, IA2 enrollments

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 2

Specialty

Cardiovascular Disease (Cardiology)Also: Cardiac Electrophysiology

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mayo Clinic Health System-Southeast Minnesota RegionGroup PAC ID 4385556703, shared by 9 NPIs, 550 clinicians

Mayo Clinic Health System-Southwest Minnesota RegionGroup PAC ID 4688585771, shared by 6 NPIs, 658 clinicians

Mayo Clinic Health System-St JamesGroup PAC ID 9537170352, shared by 3 NPIs, 77 clinicians

Winneshiek Medical CenterGroup PAC ID 4688582935, shared by 9 NPIs, 99 clinicians

Mayo Clinic Health System-Southwest Wisconsin Region IncGroup PAC ID 0345152443, 539 clinicians

Mayo Clinic Health System-Northwest Wisconsin Region IncGroup PAC ID 4385553627, 797 clinicians

Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Mayo Clinic Health System-Lake CityGroup PAC ID 1951213487, shared by 4 NPIs, 70 clinicians

Mayo Clinic Health System-FairmontGroup PAC ID 4981694981, 156 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Hospital Rochester Hospital, Rochester, MN, CCN 240010
• Mayo Clinic Health System - Mankato Hospital, Mankato, MN, CCN 240093
• Mayo Clinic Health System - Albert Lea and Austin Hospital, Albert Lea, MN, CCN 240043
• Mayo Clinic Health System in Red Wing Hospital, Red Wing, MN, CCN 240018
• Mayo Clinic Health System - Fairmont Hospital, Fairmont, MN, CCN 240166

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ksiontis267160@ehrdirect.mayoclinicmsg.org

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

• Mayo Clinic Health System-Fairmont

  • Multi-Specialty Clinic/Center
  • Fairmont, MN
  • NPI 1366410862
  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System in Eau Claire

  • Multi-Specialty Clinic/Center
  • Eau Claire, WI
  • NPI 1235588831

  MN

  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System - La Crosse

  • Multi-Specialty Clinic/Center
  • La Crosse, WI
  • NPI 1629056049

  MN

  Medicare reassignment Care Compare group NPD
• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1922074434
  Medicare reassignment Care Compare group
• Mayo Clinic Health System-Lake City

  • Multi-Specialty Clinic/Center
  • Lake City, MN
  • NPI 1164463659
  Medicare reassignment NPD
• Mayo Clinic Health System-Lake City

  • Critical Access Hospital
  • Lake City, MN
  • NPI 1538113022
  Medicare reassignment NPD
• Mayo Clinic Health System-Southeast Minnesota Region

  dba Mayo Clinic Health System-Cannon Falls

  • Critical Access Hospital
  • Cannon Falls, MN
  • NPI 1063435410
  Medicare reassignment NPD
• Mayo Clinic Health System-Southeast Minnesota Region

  dba Mayo Clinic Health System-Albert Lea and Austin

  • Multi-Specialty Clinic/Center
  • Albert Lea, MN
  • NPI 1891701637
  Medicare reassignment NPD
• Mayo Clinic Health System-Southwest Minnesota Region

  dba Mayo Clinic Health System-New Prague

  • Critical Access Hospital
  • New Prague, MN
  • NPI 1124035282
  Medicare reassignment NPD
• Mayo Clinic Health System-Southwest Minnesota Region

  dba Mayo Clinic Health System - Mankato

  • Multi-Specialty Clinic/Center
  • Mankato, MN
  • NPI 1578545422
  Medicare reassignment NPD
• Mayo Clinic Health System-Southwest Minnesota Region

  dba Mayo Clinic Health System-Waseca

  • Critical Access Hospital
  • Waseca, MN
  • NPI 1740256668
  Medicare reassignment NPD
• Mayo Clinic Health System-St James

  • Multi-Specialty Clinic/Center
  • Saint James, MN
  • NPI 1023177730
  Medicare reassignment NPD

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

• Mayo Clinic Health System-Southeast Minnesota Region

  dba Mayo Clinic Health System-Red Wing

  • General Acute Care Hospital
  • Red Wing, MN
  • NPI 1164400024
  Care Compare affiliation Name & address match
• Mayo Clinic Health System-Fairmont

  • General Acute Care Hospital
  • Fairmont, MN
  • NPI 1821066499
  Care Compare affiliation
• Mayo Clinic Health System-Southeast Minnesota Region

  dba Mayo Clinic Health System-Albert Lea and Austin

  • General Acute Care Hospital
  • Albert Lea, MN
  • NPI 1346258100
  Care Compare affiliation
• Mayo Clinic Health System-Southwest Minnesota Region

  dba Mayo Clinic Health System - Mankato

  • General Acute Care Hospital
  • Mankato, MN
  • NPI 1154302487
  Care Compare affiliation
• Mayo Clinic Hospital-Rochester

  • General Acute Care Hospital
  • Rochester, MN
  • NPI 1841266194
  Care Compare affiliation

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

{
    "created_epoch": "1340928000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759449600000",
    "number": "1457615999",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 1ST ST SW",
            "city": "ROCHESTER",
            "state": "MN",
            "postal_code": "55905",
            "telephone_number": "507-284-2511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1400 Bellinger Street",
            "address_purpose": "LOCATION",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "547035222",
            "country_code": "US",
            "telephone_number": "715-838-5222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIONTIS",
        "first_name": "KONSTANTINOS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-06-29",
        "last_updated": "2025-10-03",
        "certification_date": "2025-10-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MN",
            "license": "58218",
            "primary": true
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "MN",
            "license": "58218",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ksiontis267160@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "200 1st St SW",
            "city": "Rochester",
            "state": "MN",
            "country_code": "US",
            "postal_code": "55905",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Frank A Sinicrope, M.D.
• Grace Ellen Sinkule, OTR/L
• Nicole Sintler, L.I.C.S.W.
• Kayla Marie Siok
• Brittany Siontis, M.D.
• Abdulhaleem Mohammed Sioty
• Gloria Maachuma Sipakati, OT
• Cristina M Sisneros, OT
• Blake Thomas Sisson, PA-C, ATC
• Arthur J Sit, M.D.

• Cardiovascular Disease Physician in Rochester, MN
• Providers in Rochester, MN by specialty
• Cardiovascular Disease Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 3, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.