Individual provider Active NPI

Michael E Aronoff, MD

  • Internal Medicine Physician
  • Boston, MA
National Provider Identifier
1508857012
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
152935 Issued in MA
Practice address
55 Fruit St
GRJ 504 Infectious Disease Associates
Boston, MA 02114-2696
Phone
(617) 726-3812
NPI assigned
Nov 3, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 152935 MA Primary
Infectious Disease Physician 207RI0200X 152935 MA

Addresses

Primary practice location

55 Fruit St
GRJ 504 Infectious Disease Associates
Boston, MA 02114-2696

Mailing address

PO Box 9142
Mass General Physician Organization
Charlestown, MA 02129-9142
Phone (617) 724-0287

Other identifiers 3

IdentifierTypeStateIssuer
J21555OtherMABCBS MA
152935OtherMATUFTS HEALTH PLAN
3199291MedicaidMA

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
I20040504000411 MA Practitioner - Infectious DiseasePractitioner - Internal Medicine 5799773289 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Infectious DiseaseAlso: Internal Medicine
Education
Other, 1991
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
New England Baptist Medical Associates, Inc.Group PAC ID 2365439783, 77 clinicians
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

125 Parker Hill Ave
Boston, MA 02120-2847
Phone (617) 754-5800

300 1St Ave
Charlestown, MA 02129-3109
Phone (617) 952-5000

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

Hospital & facility affiliations

  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
  • New England Baptist Hospital Hospital, Boston, MA, CCN 220088
  • Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110
  • Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
152935MAMDInfectious Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mass General Brigham Medical Group Northern Massachusetts Inc Internal Medicine CurrentSince Jul 23, 2023 Accepting new patients
The General Hospital Corporation CurrentSince Sep 2, 1999 Accepting new patients
New England Baptist Medical Associates, Inc. Internal Medicine CurrentSince Mar 22, 2025 Accepting new patients
Massachusetts General Physicians Organization Inc Internal Medicine CurrentSince Oct 21, 2010 Accepting new patients
General Hospital Corp Current Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

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

15 Parkman St
Fl 6
Boston, MA 02114
Phone (617) 726-3456

55 Fruit St
#504
Boston, MA 02114
Phone (617) 724-7511

300 1st Ave
Charlestown, MA 02129
Phone (617) 952-5000

1 Hutchinson Dr
Danvers, MA 01923
Phone (978) 739-6950

300 Ocean Ave
Revere, MA 02151
Phone (781) 485-6000

125 Parker Hill Ave
Roxbury Xing, MA 02120
Phone (617) 264-1100

81 Highland Ave
Salem, MA 01970
Phone (978) 354-4009

Interoperability endpoints

  • Direct secure messaging: maronoff488795@direct.bilh.masshiway.net
  • Direct secure messaging: aronoff.michael.mgh@direct.partners.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 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": "1130976000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1508857012",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9142",
            "address_2": "MASS GENERAL PHYSICIAN ORGANIZATION",
            "city": "CHARLESTOWN",
            "state": "MA",
            "postal_code": "021299142",
            "telephone_number": "617-724-0287",
            "fax_number": "617-726-2894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "address_2": "GRJ 504 INFECTIOUS DISEASE ASSOCIATES",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-726-3812"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ARONOFF",
        "first_name": "MICHAEL",
        "middle_name": "E",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "152935",
            "primary": true
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "MA",
            "license": "152935",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS MA",
            "identifier": "J21555",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS HEALTH PLAN",
            "identifier": "152935",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3199291",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.