William Farrer, MD - Medicare Infectious Disease in Elizabeth, NJ

William Farrer, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Elizabeth, New Jersey. He went to Harvard Medical School and graduated in 1975 and has 49 years of diverse experience with area of expertise as Infectious Disease. He is a member of the group practice Union County Infectious Diseases Group and his current practice location is 240 Williamson St Ste 401, Elizabeth, New Jersey. You can reach out to his office (for appointments etc.) via phone at (908) 282-0500.

William Farrer is licensed to practice in New Jersey (license number MA37417) 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 1114997012.

Contact Information

William Farrer, MD
240 Williamson St Ste 401,
Elizabeth, NJ 07202-3672
(908) 282-0500
(908) 282-1482

Map and Direction




Physician's Profile

Full NameWilliam Farrer
GenderMale
SpecialityInfectious Disease
Experience49 Years
Location240 Williamson St Ste 401, Elizabeth, New Jersey
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 Farrer attended and graduated from Harvard Medical School in 1975
  NPI Data:
  • NPI Number: 1114997012
  • Provider Enumeration Date: 01/24/2006
  • Last Update Date: 12/23/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 7517154891
  • Enrollment ID: I20101214000713

Medical Identifiers

Medical identifiers for William Farrer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114997012NPI-NPPES
1332201MedicaidNJ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease MA37417 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Trinitas Regional Medical CenterElizabeth, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Union County Infectious Diseases Group50929023793

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 Farrer allows following entities to bill medicare on his behalf.
Entity NameUnion County Infectious Diseases Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235109158
PECOS PAC ID: 5092902379
Enrollment ID: O20110125000007

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 Farrer 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 Farrer, MD
240 Williamson St Ste 401,
Elizabeth, NJ 07202-3672

Ph: (908) 282-0500
William Farrer, MD
240 Williamson St Ste 401,
Elizabeth, NJ 07202-3672

Ph: (908) 282-0500

Reviews and Comments


Internal Medicine Doctors in Elizabeth, NJ

Matthew George Cholankeril, M.D.
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Practice Location: 100 Grove St, Elizabeth, NJ 07202
Phone: 908-352-1738    
Dr. Guillermo Munoz,
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Practice Location: 824 Elizabeth Ave, Elizabeth, NJ 07201
Phone: 908-352-9556    Fax: 908-352-9134
Sima Suresh Pandey, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 725 N Broad St, Elizabeth, NJ 07208
Phone: 908-351-8989    Fax: 908-351-8879
Barry Simpson Levinson, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 225 Williamson St, Elizabeth, NJ 07202
Phone: 908-994-8772    Fax: 908-994-8748
Dr. Anshu Goyal Garg, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 240 Williamson St, Suite 300, Elizabeth, NJ 07202
Phone: 908-994-8880    Fax: 908-994-8882
Jung San Shen, MD
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Medicare: Medicare Enrolled
Practice Location: 219 S Broad St, Elizabeth, NJ 07202
Phone: 908-352-5927    Fax: 908-352-6181
Dr. Manish S Patel, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 520 Westfield Ave, Suite 306, Elizabeth, NJ 07208
Phone: 908-994-1044    

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.