Dr William J Andreoni, OPHTHALMOLOGIST - Medicare Ophthalmology in Johnston, RI

Dr William J Andreoni, OPHTHALMOLOGIST is a medicare enrolled "Ophthalmology" physician in Johnston, Rhode Island. He graduated from medical school in 1977 and has 47 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Ophthalmic Surgeons, Ltd and his current practice location is 1524 Atwood Ave, Johnston, Rhode Island. You can reach out to his office (for appointments etc.) via phone at (401) 272-2110.

Dr William J Andreoni is licensed to practice in Rhode Island (license number MD05964) 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 1013902816.

Contact Information

Dr William J Andreoni, OPHTHALMOLOGIST
1524 Atwood Ave,
Johnston, RI 02919-3228
(401) 272-2110
(401) 273-6236

Map and Direction




Physician's Profile

Full NameDr William J Andreoni
GenderMale
SpecialityOphthalmology
Experience47 Years
Location1524 Atwood Ave, Johnston, Rhode Island
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 William J Andreoni graduated from medical school in 1977
  NPI Data:
  • NPI Number: 1013902816
  • Provider Enumeration Date: 09/18/2005
  • Last Update Date: 09/26/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 0143264895
  • Enrollment ID: I20070618000417

Medical Identifiers

Medical identifiers for Dr William J Andreoni such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013902816NPI-NPPES
9002209MedicaidRI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology MD05964 (Rhode Island)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Roger Williams Medical CenterProvidence, RIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ophthalmic Surgeons, Ltd95371426174

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 William J Andreoni allows following entities to bill medicare on his behalf.
Entity NameOphthalmic Surgeons, Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518952258
PECOS PAC ID: 9537142617
Enrollment ID: O20040610000090

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 William J Andreoni 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 William J Andreoni, OPHTHALMOLOGIST
1524 Atwood Ave,
Johnston, RI 02919-3228

Ph: (401) 272-2110
Dr William J Andreoni, OPHTHALMOLOGIST
1524 Atwood Ave,
Johnston, RI 02919-3228

Ph: (401) 272-2110

Reviews and Comments


Ophthalmology Doctors in Johnston, RI

Giulio G Diamante, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1277 Hartford Ave, Johnston, RI 02919
Phone: 401-521-3606    Fax: 401-453-3288

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.