Dr Alexandre Lacasse, MD, MSC - Medicare Internal Medicine in Saint Louis, MO

Dr Alexandre Lacasse, MD, MSC is a medicare enrolled "Internal Medicine" physician in Saint Louis, Missouri. He graduated from medical school in 2003 and has 21 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ssm Health Care St Louis and his current practice location is 6420 Clayton Rd, Medicine Outpatient Clinic, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 768-8373.

Dr Alexandre Lacasse is licensed to practice in Tennessee (license number MD0000042236) 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 1972723765.

Contact Information

Dr Alexandre Lacasse, MD, MSC
6420 Clayton Rd, Medicine Outpatient Clinic,
Saint Louis, MO 63117-1811
(314) 768-8373
Not Available

Map and Direction




Physician's Profile

Full NameDr Alexandre Lacasse
GenderMale
SpecialityInternal Medicine
Experience21 Years
Location6420 Clayton Rd, Saint Louis, Missouri
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 Alexandre Lacasse graduated from medical school in 2003
  NPI Data:
  • NPI Number: 1972723765
  • Provider Enumeration Date: 04/26/2007
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1052441672
  • Enrollment ID: I20100608000941

Medical Identifiers

Medical identifiers for Dr Alexandre Lacasse such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972723765NPI-NPPES
MD0000042236OtherTNPHYSICIAN LICENSE
2006028227OtherMOPHYSICIAN LICENSE
302710825OtherMOBNDD NUMBER

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 2006028227 (Missouri)Secondary
207R00000XInternal Medicine MD0000042236 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ssm Health St Mary's Hospital - St LouisRichmond heights, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ssm Health Care St Louis7810800737143

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 Alexandre Lacasse allows following entities to bill medicare on his behalf.
Entity NameSsm Health Care St Louis
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275586174
PECOS PAC ID: 7810800737
Enrollment ID: O20031118000393

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 Alexandre Lacasse 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 Alexandre Lacasse, MD, MSC
6420 Clayton Rd, Department Of Internal Medicine,
Saint Louis, MO 63117-1811

Ph: (314) 768-8778
Dr Alexandre Lacasse, MD, MSC
6420 Clayton Rd, Medicine Outpatient Clinic,
Saint Louis, MO 63117-1811

Ph: (314) 768-8373

Reviews and Comments


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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).

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