Individual provider Active NPI

Harish Shanthanu Seethapathy

  • Nephrology Physician
  • Boston, MA
National Provider Identifier
1013320209
Registry record updated Oct 1, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
281971 Issued in MA
Practice address
165 Cambridge St Ste 302
Boston, MA 02114-2752
Phone
(617) 726-5050
NPI assigned
Jun 5, 2014
Last updated
Oct 1, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 1, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 281971 MA Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

165 Cambridge St Ste 302
Boston, MA 02114-2752

Mailing address

101 Merrimac St
Boston, MA 02114-4724

Other practice location 1

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

Other practice location 2

101 Merrimac St
Boston, MA 02114-4724
Phone (617) 726-4132

Other practice location 3

55 Fruit St
Boston, MA 02114-2621
Phone (617) 726-5050

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
I20200828000650 MA Practitioner - NephrologyPractitioner - Internal Medicine 6901223460 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Other, 2012
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
John L Niles MD PLLCGroup PAC ID 2567786197, 5 clinicians

Practice addresses (Care Compare)

100 Everett Ave
Chelsea, MA 02150-2309
Phone (617) 887-4600

101 Merrimac St
FL 1
Boston, MA 02114-4724
Phone (617) 726-4132

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

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
281971MAMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The General Hospital Corporation CurrentSince Jul 15, 2020 Accepting new patients
Brigham & Womens Physicians Organization Inc CurrentSince Dec 8, 2025 Accepting new patients
John L. Niles MD, PLLC CurrentSince Sep 15, 2024 Accepting new patients
General Hospital Corp Current Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince Jul 15, 2020 Accepting new patients

Locations

101 Merrimac St
Boston, MA 02114
Phone (617) 726-1344

101 Merrimac St
Fl 1
Boston, MA 02114
Phone (617) 726-4132

101 Merrimac St
Ste 250
Boston, MA 02114
Phone (617) 643-6481

165 Cambridge St
Ste 302
Boston, MA 02114
Phone (617) 724-1501

55 Fruit St
Boston, MA 02114

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

75 Francis St
Boston, MA 02115

100 Everett Ave
Chelsea, MA 02150
Phone (617) 884-7297

1153 Centre St
Jamaica Plain, MA 02130
Phone (617) 983-7000

Interoperability endpoints

  • Direct secure messaging: seethapathy.harishshanthanu.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 7

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": "1401926400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759276800000",
    "number": "1013320209",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 MERRIMAC ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021144724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "165 CAMBRIDGE ST STE 302",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142752",
            "telephone_number": "617-726-5050"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "101 Merrimac St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021144724",
            "country_code": "US",
            "telephone_number": "617-726-4132",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Fruit St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142621",
            "country_code": "US",
            "telephone_number": "617-726-5050",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SEETHAPATHY",
        "first_name": "HARISH SHANTHANU",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-06-05",
        "last_updated": "2025-10-01",
        "certification_date": "2025-10-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MA",
            "license": "281971",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.