Individual provider Active NPI

Masami Hattori, M.D.

  • Pain Medicine Physician
  • San Francisco, CA
National Provider Identifier
1306938055
Registry record updated Nov 27, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pain Medicine PhysicianTaxonomy code 208VP0000X
License
A61067 Issued in CA
Practice address
1 Shrader St Ste 600
San Francisco, CA 94117-1018
Phone
(415) 292-9756
Fax
(415) 292-3481
NPI assigned
Sep 29, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 27, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pain Medicine Physician 208VP0000X A61067 CA 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
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
I20031125000689 CA Practitioner - AnesthesiologyPractitioner - Pain Management 9335043660 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
AnesthesiologyAlso: Pain Management
Education
University of California, San Francisco School of Medicine, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

2250 Hayes St
Suite 501
San Francisco, CA 94117-1078
Phone (415) 292-7956

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
74.85 of 100Reported as individual
Quality
53.86
Improvement activities
40
Cost
71.44

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Masami Hattori MD Inc. Anesthesiology CurrentSince Jan 1, 2003 Accepting new patients

Locations

1 Shrader St
Ste 600
San Francisco, CA 94117
Phone (415) 666-3220

1199 Bush St
Ste 300
San Francisco, CA 94109
Phone (415) 353-6400

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

1700 California St
Ste 370
San Francisco, CA 94109
Phone (410) 292-9750

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

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

175 N Redwood Dr
Ste 275
San Rafael, CA 94903
Phone (800) 704-0028

Interoperability endpoints

  • Direct secure messaging: masami.hattori.1@7900.direct.athenahealth.com
  • FHIR API: https://api.platform.athenahealth.com/7900/brand/1/csg/1/fhir/r4

Organizations & group practices 1

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 3

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": "1159488000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764201600000",
    "number": "1306938055",
    "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": "415-292-3481"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HATTORI",
        "first_name": "MASAMI",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-29",
        "last_updated": "2025-11-27",
        "certification_date": "2025-11-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208VP0000X",
            "taxonomy_group": "",
            "desc": "Pain Medicine, Pain Medicine",
            "state": "CA",
            "license": "A61067",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.