Individual provider Active NPI

Steven J. Shields, MD

  • Gastroenterology Physician
  • Boston, MA
National Provider Identifier
1336235324
Registry record updated Feb 25, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
60021 Issued in MA
Practice address
133 Brookline Ave
Boston, MA 02215-3904
Phone
(617) 421-1091
Fax
(617) 421-2555
NPI assigned
Oct 5, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 25, 2021

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 60021 MA Primary

Addresses

Primary practice location

133 Brookline Ave
Boston, MA 02215-3904

Mailing address

133 Brookline Ave
Boston, MA 02215-3904
Phone (617) 421-1091

Other identifiers 7

IdentifierTypeStateIssuer
0003077OtherMANEIGHBORHOOD HEALTH PLAN
3044203MedicaidMA
8758456-003OtherMACIGNA
P00074997OtherMAMEDICARE RAILROAD
V020OtherMAHARVARD PILGRIM
766330OtherMATUFTS HEALTH PLAN
J08205OtherMABLUE CROSS

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address sshieldsmd11900@direct.atrius.masshiway.net

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
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
I20051019000976 MA Practitioner - Gastroenterology 3173549011 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Tufts University School of Medicine, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Atrius Health IncGroup PAC ID 4789588641, 1,214 clinicians
Reliant Medical Group IncGroup PAC ID 5597755322, 638 clinicians

Practice addresses (Care Compare)

1 Lyons St
Dedham, MA 02026-5599
Phone (781) 329-1400

100 2ND Ave
Needham, MA 02494-2809
Phone (781) 726-4800

123 Summer St
Worcester, MA 01608-1216
Phone (508) 363-5000

133 Brookline Ave
Boston, MA 02215-3904
Phone (617) 421-1000

21 Bristol Dr
South Easton, MA 02375-1199
Phone (774) 302-5700

291 Independence Dr
Chestnut Hill, MA 02467-3628
Phone (617) 325-2800

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy121
Upper gastrointestinal (GI) endoscopy for acid reflux85

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Atrius Health, Inc. Gastroenterology CurrentSince Jan 6, 1989 Accepting new patients
Reliant Medical Group, Inc Gastroenterology CurrentSince Mar 10, 2025 Accepting new patients
Atrius Health, Inc. Past Accepting new patients
Pratt Medical Group, Inc Past Accepting new patients
Gastroenterology Healthcare Associates PC Gastroenterology PastSince May 30, 1999 Accepting new patients

Locations

4 Brotherton Way
Auburn, MA 01501
Phone (508) 425-5446

77 Herrick St
Ste 101
Beverly, MA 01915
Phone (978) 232-7115

133 Brookline Ave
Fl 9
Boston, MA 02215
Phone (617) 421-1091

133 Brookline Ave
Boston, MA 02215
Phone (617) 421-1000

147 Milk St
Boston, MA 02109
Phone (617) 421-2508

147 Milk St
Fl 9
Boston, MA 02109
Phone (617) 559-8051

230 Worcester St
Wellesley Hills, MA 02481
Phone (781) 431-5200

5 Neponset St
Worcester, MA 01606
Phone (508) 595-2300

123 Summer St
Worcester, MA 01608
Phone (508) 363-6000

Interoperability endpoints

  • Direct secure messaging: sshieldsmd11900@direct.atrius.masshiway.net

Organizations & group practices 5

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.

Hospital & facility affiliations 1

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": "1160006400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1614211200000",
    "number": "1336235324",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "133 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022153904",
            "telephone_number": "617-421-1091",
            "fax_number": "617-421-2555"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "133 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022153904",
            "telephone_number": "617-421-1091",
            "fax_number": "617-421-2555"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SHIELDS",
        "first_name": "STEVEN",
        "middle_name": "J.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-05",
        "last_updated": "2021-02-25",
        "certification_date": "2021-02-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MA",
            "license": "60021",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NEIGHBORHOOD HEALTH PLAN",
            "identifier": "0003077",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3044203",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA",
            "identifier": "8758456-003",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "P00074997",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "HARVARD PILGRIM",
            "identifier": "V020",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS HEALTH PLAN",
            "identifier": "766330",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "J08205",
            "state": "MA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "sshieldsmd11900@direct.atrius.masshiway.net",
            "affiliation": "N",
            "address_1": "133 Brookline Ave Fl 9",
            "city": "Boston",
            "state": "MA",
            "country_code": "US",
            "postal_code": "022153904",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.