Dr Masami Hattori, MD - Medicare Anesthesiology in San Francisco, CA

Dr Masami Hattori, MD is a medicare enrolled "Anesthesiology - Pain Medicine" physician in San Francisco, California. He went to University Of California, San Francisco School Of Medicine and graduated in 1995 and has 29 years of diverse experience with area of expertise as Anesthesiology. His current practice location is 2250 Hayes St Ste 501, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 292-9756.

Dr Masami Hattori is licensed to practice in California (license number A61067) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1306938055.

Contact Information

Dr Masami Hattori, MD
2250 Hayes St Ste 501,
San Francisco, CA 94117-1078
(415) 292-9756
(415) 292-3481

Map and Direction




Physician's Profile

Full NameDr Masami Hattori
GenderMale
SpecialityAnesthesiology
Experience29 Years
Location2250 Hayes St Ste 501, San Francisco, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Masami Hattori attended and graduated from University Of California, San Francisco School Of Medicine in 1995
  NPI Data:
  • NPI Number: 1306938055
  • Provider Enumeration Date: 09/29/2006
  • Last Update Date: 05/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9335043660
  • Enrollment ID: I20031125000689

Medical Identifiers

Medical identifiers for Dr Masami Hattori such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306938055NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology A61067 (California)Secondary
207LP2900XAnesthesiology - Pain Medicine A61067 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Mary's Medical CenterSan francisco, CAHospital
California Pacific Medical Ctr-davies Campus HospSan francisco, CAHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Masami Hattori allows following entities to bill medicare on his behalf.
Entity NameMasami Hattori Md Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962635680
PECOS PAC ID: 4789598590
Enrollment ID: O20031120000359

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Masami Hattori is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Masami Hattori, MD
2250 Hayes St Ste 501,
San Francisco, CA 94117-1078

Ph: (415) 292-9756
Dr Masami Hattori, MD
2250 Hayes St Ste 501,
San Francisco, CA 94117-1078

Ph: (415) 292-9756

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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