William Keith Lagasse, LCSW - Medicare Clinical Social Worker in Lewiston, ME

William Keith Lagasse, LCSW is a medicare enrolled "Social Worker - Clinical" provider in Lewiston, Maine. He graduated from medical school in 2005 and has 19 years of diverse experience with area of expertise as Clinical Social Worker. He is a member of the group practice Mainehealth and his current practice location is 105 Middle St Ste 2, Lewiston, Maine. You can reach out to his office (for appointments etc.) via phone at (207) 576-9645.

William Keith Lagasse is licensed to practice in Maine (license number LC11562) 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 1871716522.

Contact Information

William Keith Lagasse, LCSW
105 Middle St Ste 2,
Lewiston, ME 04240-7037
(207) 576-9645
(207) 784-6021

Map and Direction




Healthcare Provider's Profile

Full NameWilliam Keith Lagasse
GenderMale
SpecialityClinical Social Worker
Experience19 Years
Location105 Middle St Ste 2, Lewiston, Maine
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 Keith Lagasse graduated from medical school in 2005
  NPI Data:
  • NPI Number: 1871716522
  • Provider Enumeration Date: 04/11/2007
  • Last Update Date: 05/08/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 9537232491
  • Enrollment ID: I20080725000108

Medical Identifiers

Medical identifiers for William Keith Lagasse such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871716522NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical LC11562 (Maine)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mainehealth75178605882109

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 Keith Lagasse allows following entities to bill medicare on his behalf.
Entity NameMainehealth
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790265502
PECOS PAC ID: 7517860588
Enrollment ID: O20040701000166
Entity NameHealth Affiliates Maine, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932413556
PECOS PAC ID: 1951594076
Enrollment ID: O20101021000912

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 Keith Lagasse 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 Keith Lagasse, LCSW
105 Middle St Ste 2,
Lewiston, ME 04240-7037

Ph: (207) 576-9645
William Keith Lagasse, LCSW
105 Middle St Ste 2,
Lewiston, ME 04240-7037

Ph: (207) 576-9645

Reviews and Comments


Social Worker in Lewiston, ME

Cynthia K Bailey,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 230 Bartlett St, Lewiston, ME 04240
Phone: 207-783-9141    
Deanne M Jones, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 75 Central Ave, Lewiston, ME 04240
Phone: 207-795-4180    Fax: 207-753-6419
Jill Chatburn, LMSW-CC
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1155 Lisbon St, Lewiston, ME 04240
Phone: 207-783-9141    
Jane W Hersey, LCSW
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 100 Campus Ave Ste A&b, Lewiston, ME 04240
Phone: 207-755-3434    Fax: 207-755-3474
James W Davis, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1155 Lisbon St, Lewiston, ME 04240
Phone: 207-783-9141    
Nathan Miller,
Clinical Social Worker
Medicare: Medicare Enrolled
Practice Location: 331 Pine St, Lewiston, ME 04240
Phone: 207-689-5362    
Shane Sullivan Simpson, LCSW
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 230 Bartlett St, Lewiston, ME 04240
Phone: 207-783-4695    

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.