NPIMap

Individual provider Active NPI

Hossein Sadrzadeh, M.D.

  • Hematology (Internal Medicine) Physician
  • Burlington, MA
National Provider Identifier
1508278169
Registry record updated Oct 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology (Internal Medicine) PhysicianTaxonomy code 207RH0000X
License
274907 Issued in MA
Practice address
41 Mall Rd
Burlington, MA 01805-0001
Phone
(781) 744-8000
NPI assigned
May 29, 2014
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 24, 2025

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 274907 MA
Hematology (Internal Medicine) Physician 207RH0000X 274907 MA Primary

Addresses

Primary practice location

41 Mall Rd
Burlington, MA 01805-0001

Mailing address

720 Harrison Ave
Boston, MA 02118-2371

Other practice location 1

830 Harrison Avenue
Moakley, 3rd Floor
Boston, MA 02118
Phone (617) 638-6428

Other practice location 2

UMass Memorial Medical Group, Inc
119 Belmont Street
Worcester, MA 01605-2903
Phone (508) 334-8515

Other practice location 3

UMass Memorial Medical Group, Inc
157 Union Street
Marlborough, MA 01752-1228
Phone (508) 486-5678

Other practice location 4

UMass Memorial Medical Group, Inc
55 Lake Avenue North
Worcester, MA 01655
Phone (508) 334-8515

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address hsadrazdeh275909@UmassMemorial.direct-ci.com
FHIR URL https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, MT2 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
I20190326000931 MA Practitioner - Internal Medicine 5395015622 Reassigns benefits to 6 organizations
I20251104003838 MT Practitioner - Hematology/Oncology 5395015622 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Lahey Clinic IncGroup PAC ID 2264336528, shared by 3 NPIs, 1,381 clinicians
Billings ClinicGroup PAC ID 6002993516, 814 clinicians

Practice addresses (Care Compare)

1 Essex Ctr Dr
Peabody, MA 01960-2901
Phone (978) 538-4000

29 Mall Rd
Burlington, MA 01805-0001

330 Mount Auburn St
Cambridge, MA 02138-5502
Phone (781) 983-9088

41 Mall Rd
Burlington, MA 01805-0001

801 N 29TH St
Billings, MT 59101-0905
Phone (406) 238-2500

Hospital & facility affiliations

  • Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086
  • Lahey Hospital & Medical Center, Burlington Hospital, Burlington, MA, CCN 220171
  • Billings Clinic Hospital Hospital, Billings, MT, CCN 270004
  • Winchester Hospital Hospital, Winchester, MA, CCN 220105
  • Anna Jaques Hospital Hospital, Newburyport, MA, CCN 220029

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Lahey Clinic, Inc Internal Medicine CurrentSince Oct 1, 2025 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc CurrentSince Jul 31, 2025 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc Internal Medicine Current Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jul 1, 2023 Accepting new patients
Lahey Clinic, Inc. Internal Medicine CurrentSince Oct 1, 2025 Accepting new patients
Sound Physicians of Massachusetts Inc Internal Medicine Current Accepting new patients
Sound Physicians of Massachusetts Inc Internal Medicine CurrentSince Jan 16, 2019 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc CurrentSince Jul 31, 2025 Accepting new patients
Sound Physicians of Massachusetts, Inc Internal Medicine CurrentSince Jan 16, 2019 Accepting new patients
Evans Medical Foundation, Inc. Internal Medicine CurrentSince Nov 1, 2019 Accepting new patients
Umass Memorial Medical Group Inc Internal Medicine CurrentSince Aug 9, 2019 Accepting new patients
Billings Clinic Current Accepting new patients
Umass Memorial Medical Group, Inc. CurrentSince Aug 9, 2019 Accepting new patients
Billings Clinic Internal Medicine CurrentSince Oct 21, 2025 Accepting new patients
Billings Clinic Internal Medicine CurrentSince Oct 21, 2025 Accepting new patients
Beth Israel Deaconess Medical Center, Inc. Past Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc Past Accepting new patients
Medical Care of Boston Management Corporation Internal Medicine Past Accepting new patients

Locations

88 Newton St
Boston, MA 02118
Phone (617) 638-7350

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

330 Brookline Ave
Boston, MA 02215
Phone (617) 667-2000

330 Brookline Ave
#9
Boston, MA 02215
Phone (617) 667-2100

720 Harrison Ave
Boston, MA 02118
Phone (617) 638-7460

41 Mall Rd
Burlington, MA 01805
Phone (781) 744-8400

330 Mount Auburn St
Cambridge, MA 02138
Phone (617) 499-5054

115 Lincoln St
Framingham, MA 01702
Phone (508) 383-1000

157 Union St
Marlborough, MA 01752
Phone (508) 481-5000

720 Harrison Ave
#503
Roxbury, MA 02118
Phone 6174145404 ext. 2

55 Lake Ave N
Worcester, MA 01655
Phone 508334100048862

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

119 Belmont St
Worcester, MA 01605
Phone (508) 334-6345

801 N 29th St
Billings, MT 59101
Phone (406) 238-2210

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

Interoperability endpoints

  • Direct secure messaging: hsadrazdeh275909@umassmemorial.direct-ci.com

Organizations & group practices 18

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.

View all 18

Hospital & facility affiliations 12

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": "1401321600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1508278169",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "720 HARRISON AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182371"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "41 MALL RD",
            "city": "BURLINGTON",
            "state": "MA",
            "postal_code": "018050001",
            "telephone_number": "781-744-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "830 Harrison Avenue",
            "address_2": "Moakley, 3rd Floor",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "02118",
            "country_code": "US",
            "telephone_number": "617-638-6428",
            "fax_number": "617-638-5756",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "UMass Memorial Medical Group, Inc",
            "address_2": "119 Belmont Street",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "016052903",
            "country_code": "US",
            "telephone_number": "508-334-8515",
            "fax_number": "508-334-6490",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "UMass Memorial Medical Group, Inc",
            "address_2": "157 Union Street",
            "address_purpose": "LOCATION",
            "city": "Marlborough",
            "state": "MA",
            "postal_code": "017521228",
            "country_code": "US",
            "telephone_number": "508-486-5678",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "UMass Memorial Medical Group, Inc",
            "address_2": "55 Lake Avenue North",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "01655",
            "country_code": "US",
            "telephone_number": "508-334-8515",
            "fax_number": "508-334-6490",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SADRZADEH",
        "first_name": "HOSSEIN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-05-29",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "274907",
            "primary": false
        },
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "MA",
            "license": "274907",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hsadrazdeh275909@UmassMemorial.direct-ci.com",
            "affiliation": "N",
            "address_1": "UMass Memorial Medical Group, Inc",
            "address_2": "55 Lake Avenue North",
            "city": "Worcester",
            "state": "MA",
            "country_code": "US",
            "postal_code": "01655",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "UMass Memorial Medical Group, Inc",
            "address_2": "55 Lake Avenue North",
            "city": "Worcester",
            "state": "MA",
            "country_code": "US",
            "postal_code": "01655",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Burlington, MA

Sources for this page

Verify at the official NPI Registry.