Dr Timothy W Tsai, MD - Medicare Emergency Medicine in West Tisbury, MA

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Dr Timothy W Tsai, MD is a medicare enrolled "Emergency Medicine" physician in West Tisbury, Massachusetts. He went to Saint Louis University School Of Medicine and graduated in 1988 and has 38 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Martha's Vineyard Hospital Inc and his current practice location is 65 Music Street, West Tisbury, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 560-2120.

Dr Timothy W Tsai is licensed to practice in Massachusetts (license number 76209) 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 1740387356.

Contact Information

Dr Timothy W Tsai, MD
65 Music Street,
West Tisbury, MA 02575
(508) 560-2120
Not Available

Map and Direction




Physician's Profile

Full NameDr Timothy W Tsai
GenderMale
SpecialityEmergency Medicine
Experience38 Years
Location65 Music Street, West Tisbury, Massachusetts
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 Timothy W Tsai attended and graduated from Saint Louis University School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1740387356
  • Provider Enumeration Date: 09/19/2006
  • Last Update Date: 10/15/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 7719978576
  • Enrollment ID: I20040520000492

Medical Identifiers

Medical identifiers for Dr Timothy W Tsai such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740387356NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 76209 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Martha's Vineyard Hospital IncOak bluffs, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Martha's Vineyard Hospital Inc9931166113150

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 Timothy W Tsai allows following entities to bill medicare on his behalf.
Entity NameInternal Medical Associates-ebnhc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558481879
PECOS PAC ID: 6103814371
Enrollment ID: O20040505000853
Entity NameMartha's Vineyard Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194866210
PECOS PAC ID: 9931166113
Enrollment ID: O20041220000589
Entity NameNantucket Cottage Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447214622
PECOS PAC ID: 1759357601
Enrollment ID: O20050104000928
Entity NameEast Boston Neighborhood Health Center Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316994411
PECOS PAC ID: 9032356050
Enrollment ID: O20130513000045
Entity NameMartha's Vineyard Hospital Inc
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1134206386
PECOS PAC ID: 9931166113
Enrollment ID: O20210819001040

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 Timothy W Tsai 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 Timothy W Tsai, MD
Po Box 1332,
West Tisbury, MA 02575-1332

Ph: (508) 560-2120		Dr Timothy W Tsai, MD
65 Music Street,
West Tisbury, MA 02575

Ph: (508) 560-2120

Reviews and Comments



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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.