Dr Janet M Williams, MD - Medicare Emergency Medicine in Greece, NY

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Dr Janet M Williams, MD is a medicare enrolled "Emergency Medicine" physician in Greece, New York. She went to State University Of New York At Buffalo School Of Medicine and graduated in 1991 and has 34 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Western New York Medical Practice Pc and her current practice location is 2745 W. Ridge Road, Greece, New York. You can reach out to her office (for appointments etc.) via phone at (585) 225-5252.

Dr Janet M Williams is licensed to practice in New York (license number 226659-1) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1144263070.

Contact Information

Dr Janet M Williams, MD
2745 W. Ridge Road,
Greece, NY 14626-3038
(585) 225-5252
(512) 280-1446

Map and Direction




Physician's Profile

Full NameDr Janet M Williams
GenderFemale
SpecialityEmergency Medicine
Experience34 Years
Location2745 W. Ridge Road, Greece, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Janet M Williams attended and graduated from State University Of New York At Buffalo School Of Medicine in 1991
  NPI Data:
  • NPI Number: 1144263070
  • Provider Enumeration Date: 06/14/2006
  • Last Update Date: 03/29/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 7517999659
  • Enrollment ID: I20060117000798

Medical Identifiers

Medical identifiers for Dr Janet M Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144263070NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 226659-1 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Western New York Medical Practice Pc3870767791409

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 Janet M Williams allows following entities to bill medicare on her behalf.
Entity NameRochester General Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356412712
PECOS PAC ID: 0244149474
Enrollment ID: O20031121000644
Entity NameUniversity Of Rochester
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710226824
PECOS PAC ID: 5799699088
Enrollment ID: O20031201000019
Entity NameWestern New York Immediate Medical Care Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316014491
PECOS PAC ID: 9537105283
Enrollment ID: O20050701000872
Entity NameGreater Rochester Immediate Medical Care Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295064103
PECOS PAC ID: 8123158078
Enrollment ID: O20100619000043
Entity NameWestern New York Medical Practice Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063790608
PECOS PAC ID: 3870767791
Enrollment ID: O20111110000598
Entity NameUniversity Of Rochester Urgent Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700260395
PECOS PAC ID: 2567772676
Enrollment ID: O20151102001307

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 Janet M Williams 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 Janet M Williams, MD
2745 Ridge Rd W,
Greece, NY 14625-3038

Ph: (585) 225-5252		Dr Janet M Williams, MD
2745 W. Ridge Road,
Greece, NY 14626-3038

Ph: (585) 225-5252

Reviews and Comments


Emergency Medicine Doctors in Greece, NY


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.