William M Tang, MD - Medicare Ophthalmology in Natick, MA

William M Tang, MD is a medicare enrolled "Ophthalmology" physician in Natick, Massachusetts. He went to Johns Hopkins University School Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Ophthalmology. His current practice location is 182 W Central St Ste 102, Retina Eye Care, P.c., Natick, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 903-0003.

William M Tang is licensed to practice in Massachusetts (license number 153637) 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 1972540177.

Contact Information

William M Tang, MD
182 W Central St Ste 102, Retina Eye Care, P.c.,
Natick, MA 01760-3756
(508) 903-0003
Not Available

Map and Direction




Physician's Profile

Full NameWilliam M Tang
GenderMale
SpecialityOphthalmology
Experience31 Years
Location182 W Central St Ste 102, Natick, 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:
  • William M Tang attended and graduated from Johns Hopkins University School Of Medicine in 1993
  NPI Data:
  • NPI Number: 1972540177
  • Provider Enumeration Date: 05/31/2006
  • Last Update Date: 11/21/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9638341555
  • Enrollment ID: I20111020000119

Medical Identifiers

Medical identifiers for William M Tang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972540177NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 153637 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Metrowest Medical CenterFramingham, MAHospital

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. William M Tang allows following entities to bill medicare on his behalf.
Entity NameRetina Eye Care P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639236714
PECOS PAC ID: 2961445192
Enrollment ID: O20050608000292

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. William M Tang 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
William M Tang, MD
182 W Central St, Suite 102,
Natick, MA 01760-3756

Ph: (508) 903-0003
William M Tang, MD
182 W Central St Ste 102, Retina Eye Care, P.c.,
Natick, MA 01760-3756

Ph: (508) 903-0003

Reviews and Comments


Ophthalmology Doctors in Natick, MA

Dr. Bruce Joel Gillers, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 67 Union St, Suite 408, Natick, MA 01760
Phone: 508-651-3601    Fax: 508-650-0569
Stephen James Belmonte, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 67 Union St, #405, Natick, MA 01760
Phone: 508-655-5810    

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.