NPIMap

Individual provider Active NPI

Shihab Ahmed, MBBS

  • Pain Medicine (Anesthesiology) Physician
  • Boston, MA
National Provider Identifier
1821088451
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pain Medicine (Anesthesiology) PhysicianTaxonomy code 207LP2900X
License
150818 Issued in MA
Practice address
55 Fruit St
CLN 309 Anesthesia Associates
Boston, MA 02114-2621
Phone
(617) 726-3030
Fax
(617) 724-8500
NPI assigned
Oct 25, 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 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pain Medicine (Anesthesiology) Physician 207LP2900X 150818 MA Primary

Addresses

Primary practice location

55 Fruit St
CLN 309 Anesthesia Associates
Boston, MA 02114-2621

Mailing address

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

Other identifiers 3

IdentifierTypeStateIssuer
150818OtherMATUFTS HEALTH PLAN
3165841MedicaidMA
J17631OtherMABCBS MA

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040819000929 MA Practitioner - Interventional Pain ManagementPractitioner - Anesthesiology 7214900901 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Interventional Pain ManagementAlso: Anesthesiology
Education
Other, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The General Hospital Corporation 1,275 clinicians
Massachusetts General Physicians Organization Inc 3,494 clinicians
Nantucket Cottage Hospital 91 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

57 Prospect St
Nantucket, MA 02554-2799
Phone (508) 825-8100

Hospital & facility affiliations

  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
  • Nantucket Cottage Hospital Hospital, Nantucket, MA, CCN 220177
  • Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110
  • Spaulding Rehabilitation Hospital Inpatient rehabilitation facility, Charlestown, MA, CCN 223034

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
General Hospital Corp Current Accepting new patients
Nantucket Cottage Hospital CurrentSince Feb 2, 2024 Accepting new patients
Nantucket Cottage Hospital CurrentSince Feb 2, 2024 Accepting new patients
The General Hospital Corporation CurrentSince May 21, 1997 Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince May 21, 1997 Accepting new patients
Nantucket Physicians Organization CurrentSince Feb 2, 2024 Accepting new patients

Locations

55 Fruit St
#309
Boston, MA 02114
Phone (617) 724-0341

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

55 Fruit St
Boston, MA 02114

55 Fruit St
#444
Boston, MA 02114
Phone (617) 319-3940

15 Parkman St
#332
Boston, MA 02114
Phone (617) 726-8810

133 Ornac
Concord, MA 01742
Phone (978) 287-3000

57 Prospect St
Nantucket, MA 02554
Phone (508) 228-1200

Interoperability endpoints

  • Direct secure messaging: ahmed.shihab.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 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": "1130198400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1821088451",
    "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": "CLN 309 ANESTHESIA ASSOCIATES",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-726-3030",
            "fax_number": "617-724-8500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AHMED",
        "first_name": "SHIHAB",
        "name_prefix": "Dr.",
        "credential": "MBBS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-25",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207LP2900X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pain Medicine",
            "state": "MA",
            "license": "150818",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS HEALTH PLAN",
            "identifier": "150818",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3165841",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS MA",
            "identifier": "J17631",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.