Dr William Douglas Farmer, MD - Medicare Family Practice in Hamden, CT

Dr William Douglas Farmer, MD is a medicare enrolled "Internal Medicine" physician in Hamden, Connecticut. He went to Loma Linda University School Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Family Practice. His current practice location is 2447 Whitney Ave, Suite 2a, Hamden, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 230-5888.

Dr William Douglas Farmer is licensed to practice in Connecticut (license number 038805) 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 1689660771.

Contact Information

Dr William Douglas Farmer, MD
2447 Whitney Ave, Suite 2a,
Hamden, CT 06518-3211
(203) 230-5888
(203) 230-5889

Map and Direction




Physician's Profile

Full NameDr William Douglas Farmer
GenderMale
SpecialityFamily Practice
Experience28 Years
Location2447 Whitney Ave, Hamden, 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:
  • Dr William Douglas Farmer attended and graduated from Loma Linda University School Of Medicine in 1996
  NPI Data:
  • NPI Number: 1689660771
  • Provider Enumeration Date: 09/23/2005
  • Last Update Date: 10/02/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 5890686711
  • Enrollment ID: I20040322000861

Medical Identifiers

Medical identifiers for Dr William Douglas Farmer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689660771NPI-NPPES
9800001901OtherCTMEDICARE ID

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 038805 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Yale-new Haven HospitalNew haven, CTHospital

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 Douglas Farmer allows following entities to bill medicare on his behalf.
Entity NameInternal Medicine And Family Practice, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114250370
PECOS PAC ID: 1355487059
Enrollment ID: O20091012000055

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 Douglas Farmer 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 Douglas Farmer, MD
2447 Whitney Ave, Suite 2a,
Hamden, CT 06518-3211

Ph: (203) 230-5888
Dr William Douglas Farmer, MD
2447 Whitney Ave, Suite 2a,
Hamden, CT 06518-3211

Ph: (203) 230-5888

Reviews and Comments


Internal Medicine Doctors in Hamden, CT

Ricardo F Cordido, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2200 Whitney Ave, Suite 180, Hamden, CT 06518
Phone: 203-407-2500    Fax: 203-407-5812
Jennifer Su Thompson, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2200 Whitney Ave, Suite 360, Hamden, CT 06518
Phone: 203-281-4463    
Mr. Marian E Vulpe, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2200 Whitney Ave, Ste 180, Hamden, CT 06518
Phone: 203-407-2500    Fax: 203-407-5812
Dr. Leonard E Grauer, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1952 Whitney Ave, Hamden, CT 06517
Phone: 203-773-3055    Fax: 203-281-5796
Dr. Louis A. Telesford, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2337 Whitney Ave, Hamden, CT 06518
Phone: 203-248-8142    Fax: 203-248-7764
Dr. Stephen E Possick, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9 Washington Ave, Hamden, CT 06518
Phone: 203-281-6881    Fax: 203-287-9904
Dr. Prem George Thomas, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 75 Augur St, Hamden, CT 06517
Phone: 203-776-2012    

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.