Dr William George Tan, MD - Medicare Internal Medicine in Eldersburg, MD

Dr William George Tan, MD is a medicare enrolled "Internal Medicine" physician in Eldersburg, Maryland. He went to University Of Maryland School Of Medicine and graduated in 1984 and has 41 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Lifebridge Primary Care Of Eldersburg Llc and his current practice location is 1645 Liberty Rd, Eldersburg, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 795-7737.

Dr William George Tan is licensed to practice in Maryland (license number D34849) 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 1386754455.

Contact Information

Dr William George Tan, MD
1645 Liberty Rd,
Eldersburg, MD 21784-6521
(410) 795-7737
(410) 795-2828

Map and Direction




Physician's Profile

Full NameDr William George Tan
GenderMale
SpecialityInternal Medicine
Experience41 Years
Location1645 Liberty Rd, Eldersburg, Maryland
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 George Tan attended and graduated from University Of Maryland School Of Medicine in 1984
  NPI Data:
  • NPI Number: 1386754455
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 1254461924
  • Enrollment ID: I20100608000291

Medical Identifiers

Medical identifiers for Dr William George Tan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386754455NPI-NPPES
232951400MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D34849 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Homecare Maryland, LlcOwings mills, MDHome health agency
Amedisys Home HealthWestminster, MDHome health agency
Carroll Hospice, IncWestminster, MDHospice
FairhavenSykesville, MDNursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Lifebridge Primary Care Of Eldersburg Llc03454656545

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 George Tan allows following entities to bill medicare on his behalf.
Entity NameLifebridge Community Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174815807
PECOS PAC ID: 3678751468
Enrollment ID: O20110627000318
Entity NameLifebridge Primary Care Of Eldersburg Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720404015
PECOS PAC ID: 0345465654
Enrollment ID: O20140630001230

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 George Tan 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 George Tan, MD
1645 Liberty Rd,
Eldersburg, MD 21784-6521

Ph: (410) 795-7737
Dr William George Tan, MD
1645 Liberty Rd,
Eldersburg, MD 21784-6521

Ph: (410) 795-7737

Reviews and Comments


Internal Medicine Doctors in Eldersburg, MD

Ellis Mez, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1645 Liberty Rd, Suite 204, Eldersburg, MD 21784
Phone: 410-795-7737    Fax: 410-795-2828
Florin Ioan Niculescu, M.D. PHD.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6190 Georgetown Blvd, Suite 110, Eldersburg, MD 21784
Phone: 410-795-9700    Fax: 410-795-7500
Dr. Steven Billet, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1137 Liberty Rd, Eldersburg, MD 21784
Phone: 410-795-0929    Fax: 410-795-0149
Teodora M. Niculescu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6190 Georgetown Blvd, Suite 110, Eldersburg, MD 21784
Phone: 410-795-9700    Fax: 410-795-7500
Dr. Eileen S Wiesenberger, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6190 Georgetown Blvd, Eldersburg, MD 21784
Phone: 410-552-5050    
Dr. Robert O'brian, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6190 Georgetown Blvd, Suite 110, Eldersburg, MD 21784
Phone: 410-795-9700    Fax: 410-795-7500

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.