Antonios Katsigiannis, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

035140 Issued in CT

Practice address

90 Morgan St
Suite 101
Stamford, CT 06905-5466

Phone

(203) 323-8437

Fax

(203) 327-4628

NPI assigned

Nov 3, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CT

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

Specialty

Internal Medicine

Education

New York Medical College, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Greenwich Hospital Association - Hospital, Greenwich, CT, CCN 070018
• Stamford Hospital Hospital, Stamford, CT, CCN 070006
• St Vincent'S Medical Center Hospital, Bridgeport, CT, CCN 070028

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: akatsigiannis6452@direct.ynhh.org
• Direct secure messaging: antonios.katsigiannis.1@15435.direct.athenahealth.com

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.

• Connecticut Health Care Consultants, PC

  • Internal Medicine Physician
  • Stamford, CT
  • NPI 1700034535
  Medicare reassignment NPD Authorized official

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

• Greenwich Hospital

  • General Acute Care Hospital
  • Greenwich, CT
  • NPI 1609846088
  Care Compare affiliation
• Stamford Hospital

  • General Acute Care Hospital
  • Stamford, CT
  • NPI 1356331425
  Care Compare affiliation
• SVMC Holdings, Inc

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1942224696
  Care Compare affiliation

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

{
    "created_epoch": "1162512000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1571616000000",
    "number": "1629157276",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "90 MORGAN ST",
            "address_2": "STE 101-102",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069055466",
            "telephone_number": "203-323-8437",
            "fax_number": "203-327-4628"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "90 MORGAN ST",
            "address_2": "SUITE 101",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069055466",
            "telephone_number": "203-323-8437",
            "fax_number": "203-327-4628"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KATSIGIANNIS",
        "first_name": "ANTONIOS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-03",
        "last_updated": "2019-10-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "035140",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "035140",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Carolyn M Kasov, NP
• Cassandra Paige Kassel, BCBA
• Katelyn Lieb ND LLC
• Nasreen Kathrada, MBCHB
• Maria Katsetos
• Jenna Katt, FNP-C
• Debbie Katz, MSW, LCSW
• Isabel M. Katz, M.A.P.T.
• Mariel Jana Katz, MD
• Milana Katz, DDS

• Internal Medicine Physician in Stamford, CT
• Providers in Stamford, CT by specialty
• Internal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 21, 2019; 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.