James C Tsai, MD - Medicare Ophthalmology in New Haven, CT

James C Tsai, MD is a medicare enrolled "Ophthalmology" physician in New Haven, Connecticut. He went to Stanford University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Icahn School Of Medicine At Mount Sinai and his current practice location is 800 Howard Ave, Yale Physicians Bldg, New Haven, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 785-2140.

James C Tsai is licensed to practice in Connecticut (license number 044828) 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 1336226588.

Contact Information

James C Tsai, MD
800 Howard Ave, Yale Physicians Bldg,
New Haven, CT 06519-1369
(203) 785-2140
(203) 785-6414

Map and Direction




Physician's Profile

Full NameJames C Tsai
GenderMale
SpecialityOphthalmology
Experience35 Years
Location800 Howard Ave, New Haven, Connecticut
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:
  • James C Tsai attended and graduated from Stanford University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1336226588
  • Provider Enumeration Date: 11/01/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3870405046
  • Enrollment ID: I20031105000322

Medical Identifiers

Medical identifiers for James C Tsai such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336226588NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 044828 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mount Sinai HospitalNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Icahn School Of Medicine At Mount Sinai22646910702339

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. James C Tsai allows following entities to bill medicare on his behalf.
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437421252
PECOS PAC ID: 2264691070
Enrollment ID: O20120806000195
Entity NameIcahn School Of Medicine At Mount Sinai Nyee Faculty Practice
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760932974
PECOS PAC ID: 7214211895
Enrollment ID: O20170227001149

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. James C 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
James C Tsai, MD
Po Box 9805, 300 George St 6th Flr,
New Haven, CT 06536-0805

Ph: (203) 785-7998
James C Tsai, MD
800 Howard Ave, Yale Physicians Bldg,
New Haven, CT 06519-1369

Ph: (203) 785-2140

Reviews and Comments


Ophthalmology Doctors in New Haven, CT

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Dr. David Silverstone, M.D.
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Practice Location: 40 Temple St, Suite 5b, New Haven, CT 06510
Phone: 203-789-2020    Fax: 203-562-6028

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.