Dr William Morgan Cassidy, MD - Medicare Internal Medicine in Baton Rouge, LA

Dr William Morgan Cassidy, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Baton Rouge, Louisiana. His current practice location is Lsu Healthcare Network, 3401 North Blvd, Suite 400, Baton Rouge, Louisiana. You can reach out to his office (for appointments etc.) via phone at (225) 381-2755.

Dr William Morgan Cassidy is licensed to practice in Louisiana (license number 17234) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1194748038.

Contact Information

Dr William Morgan Cassidy, MD
Lsu Healthcare Network, 3401 North Blvd, Suite 400,
Baton Rouge, LA 70806
(225) 381-2755
Not Available

Map and Direction




Physician's Profile

Full NameDr William Morgan Cassidy
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
LocationLsu Healthcare Network, Baton Rouge, Louisiana
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1194748038
  • Provider Enumeration Date: 07/25/2006
  • Last Update Date: 12/17/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 9739268806
  • Enrollment ID: I20080501000263

Medical Identifiers

Medical identifiers for Dr William Morgan Cassidy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194748038NPI-NPPES
1903159MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 17234 (Louisiana)Primary

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 Morgan Cassidy allows following entities to bill medicare on his behalf.
Entity NameLsuhn Billing Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992975775
PECOS PAC ID: 0446337802
Enrollment ID: O20080409000372

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 Morgan Cassidy 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 Morgan Cassidy, MD
1340 Poydras St,
New Orleans, LA 70112-1221

Ph: (504) 412-1860
Dr William Morgan Cassidy, MD
Lsu Healthcare Network, 3401 North Blvd, Suite 400,
Baton Rouge, LA 70806

Ph: (225) 381-2755

Reviews and Comments


Internal Medicine Doctors in Baton Rouge, LA

Dr. Jennifer L Rippon, D.O.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 7777 Hennessy Blvd Ste 409, Baton Rouge, LA 70808
Phone: 225-765-5864    Fax: 225-765-2013
Gregory Fusilier, M.D.
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Medicare: Medicare Enrolled
Practice Location: 9103 Jefferson Hwy, Baton Rouge, LA 70809
Phone: 225-927-1190    Fax: 225-927-0988
Dr. Yolanda Maria O'rourke,
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Practice Location: 7968 Essen Park, Baton Rouge, LA 70809
Phone: 225-761-6700    Fax: 225-761-6760
Patricia D. Whatley, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 7373 Perkins Rd, Attn: Dee / Administration, Baton Rouge, LA 70808
Phone: 225-769-4044    
Frederick Cerise,
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 3810 W Lakeshore Dr, Baton Rouge, LA 70808
Phone: 225-578-8886    
Nicholas Kyle Baldwin,
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 9103 Jefferson Hwy, Baton Rouge, LA 70809
Phone: 225-927-1190    
Dr. Jon Richard Jackson, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 5000 Hennessy Blvd, Baton Rouge, LA 70808
Phone: 225-765-4050    Fax: 225-765-4046

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.