Organization Active NPI

Masami Hattori MD Inc.

  • Pain Medicine Physician
  • San Francisco, CA
National Provider Identifier
1962635680
Registry record updated Dec 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pain Medicine PhysicianTaxonomy code 208VP0000X
Legal business name
MASAMI HATTORI MD INC.
Practice address
1 Shrader St Ste 600
San Francisco, CA 94117-1018
Phone
(415) 292-9756
Fax
(412) 292-3481
NPI assigned
Aug 27, 2009
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Dec 18, 2025

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

Authorized official

Name
Dr. Masami Hattori, M.D.NPI 1306938055
Title
Owner
Phone
(415) 292-9756

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pain Medicine PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 208VP0000X Primary

Addresses

Primary practice location

1 Shrader St Ste 600
San Francisco, CA 94117-1018

Mailing address

1 Shrader St Ste 600
San Francisco, CA 94117-1018
Phone (415) 292-9756

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20031120000359 CA Part B Supplier - Clinic/Group Practice 4789598590 Receives reassigned benefits from 2 practitioners
Practice locations: San Francisco, CA

National Provider Directory

National Provider Directory

Locations

900 Hyde St
San Francisco, CA 94109
Phone (415) 353-6000

2250 Hayes St
Ste 501
San Francisco, CA 94117
Phone (415) 292-7956

1700 California St
Ste 340
San Francisco, CA 94109
Phone (415) 673-4500

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/7900/brand/1/csg/1/fhir/r4

Practitioners & affiliated clinicians

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1251331200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1766016000000",
    "number": "1962635680",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 SHRADER ST STE 600",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941171018",
            "telephone_number": "415-292-9756",
            "fax_number": "415-292-3481"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 SHRADER ST STE 600",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941171018",
            "telephone_number": "415-292-9756",
            "fax_number": "412-292-3481"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MASAMI HATTORI MD INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2009-08-27",
        "last_updated": "2025-12-18",
        "certification_date": "2025-12-18",
        "status": "A",
        "authorized_official_last_name": "HATTORI",
        "authorized_official_first_name": "MASAMI",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "415-292-9756",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "208VP0000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Pain Medicine, Pain Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.