NPIMap

Individual provider Active NPI

Katie Ann Dunleavy, MB BCH BAO

  • Gastroenterology Physician
  • Boston, MA
National Provider Identifier
1083118343
Registry record updated Jan 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
1022159 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2696
Phone
(507) 284-2511
NPI assigned
Mar 21, 2018
Last updated
Jan 30, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 30, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 84447 WI
Gastroenterology Physician 207RG0100X 1022159 MA Primary
Gastroenterology Physician 207RG0100X 69006 MN

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2696

Mailing address

55 Fruit St
Boston, MA 02114-2696
Phone (507) 284-2511

Other practice location 1

800 West Avenue S
La Crosse, WI 54601-8806
Phone (608) 785-0940

Other practice location 2

1 Gustave L Levy Pl # 1118
New York, NY 10029-6504
Phone (201) 370-9983

Other practice location 3

200 1st St SW
Rochester, MN 55905-0001
Phone (507) 284-2511

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, MA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20250212000371 WI Practitioner - Gastroenterology 7911243951 Reassigns benefits to 1 organization
I20250529000736 MA Practitioner - Gastroenterology 7911243951 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The General Hospital CorporationGroup PAC ID 6507803806, 1,275 clinicians

Practice addresses (Care Compare)

55 Fruit St
Boston, MA 02114-2621
Phone (617) 726-2000

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-0287

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy18
Upper gastrointestinal (GI) endoscopy for acid reflux1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The General Hospital Corporation CurrentSince Apr 20, 2025 Accepting new patients
Mayo Clinic CurrentSince Jul 1, 2021 Accepting new patients
Mayo Clinic CurrentSince Jul 1, 2021 Accepting new patients
General Hospital Corp Current Accepting new patients
Mayo Clinic Health System-Southwest Minnesota Region CurrentSince Mar 31, 2025 Accepting new patients
Mayo Clinic Health System-Southwest Minnesota Region Current Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Dec 6, 2024 Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince Apr 20, 2025 Accepting new patients
Mayo Clinic Gastroenterology Current Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Dec 6, 2024 Accepting new patients
Floyd County Memorial Hospital Commission Past Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

62 13th St
Charlestown, MA 02129
Phone (617) 724-3874

1025 Marsh St
Mankato, MN 56001
Phone (507) 345-2623

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

800 West Ave S
La Crosse, WI 54601
Phone (608) 372-5951

800 E Blackhawk Ave
Prairie du Chien, WI 53821
Phone (608) 326-0808

Interoperability endpoints

  • Direct secure messaging: dunleavy.katie.mgh@direct.partners.masshiway.net

Organizations & group practices 11

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.

Hospital & facility affiliations 4

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

NPI Registry JSON

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

{
    "created_epoch": "1521590400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1083118343",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "507-284-2511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "800 West Avenue S",
            "address_purpose": "LOCATION",
            "city": "La Crosse",
            "state": "WI",
            "postal_code": "546018806",
            "country_code": "US",
            "telephone_number": "608-785-0940",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Gustave L Levy Pl # 1118",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100296504",
            "country_code": "US",
            "telephone_number": "201-370-9983",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559050001",
            "country_code": "US",
            "telephone_number": "507-284-2511",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DUNLEAVY",
        "first_name": "KATIE",
        "middle_name": "ANN",
        "name_prefix": "Dr.",
        "credential": "MB BCH BAO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-03-21",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "84447",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MA",
            "license": "1022159",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MN",
            "license": "69006",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.