Marie Louies Lamsen, MD - Medicare Internal Medicine in Danbury, CT

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Marie Louies Lamsen, MD is a medicare enrolled "Internal Medicine" physician in Danbury, Connecticut. She went to Saint Louis University School Of Medicine and graduated in 2009 and has 16 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice North Shore-lij Medical Pc, East Post Road Medical Services Pc, Nuvance Health Medical Practice Ct Inc and her current practice location is 24 Hospital Ave, Danbury, Connecticut. You can reach out to her office (for appointments etc.) via phone at (203) 739-6959.

Marie Louies Lamsen is licensed to practice in Connecticut (license number 70095) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1982975710.

Contact Information

Marie Louies Lamsen, MD
24 Hospital Ave,
Danbury, CT 06810-6077
(203) 739-6959
Not Available

Map and Direction




Physician's Profile

Full NameMarie Louies Lamsen
GenderFemale
SpecialityInternal Medicine
Experience16 Years
Location24 Hospital Ave, Danbury, Connecticut
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marie Louies Lamsen attended and graduated from Saint Louis University School Of Medicine in 2009
  NPI Data:
  • NPI Number: 1982975710
  • Provider Enumeration Date: 01/25/2012
  • Last Update Date: 01/31/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4880907955
  • Enrollment ID: I20150717001971

Medical Identifiers

Medical identifiers for Marie Louies Lamsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982975710NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 274350 (New York)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207R00000XInternal Medicine 70095 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Danbury HospitalDanbury, CTHospital
White Plains Hospital CenterWhite plains, NYHospital
Northern Westchester HospitalMount kisco, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Shore-lij Medical Pc33757015685625
East Post Road Medical Services Pc6406198506327
Nuvance Health Medical Practice Ct Inc4789597691694

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. Marie Louies Lamsen allows following entities to bill medicare on her behalf.
Entity NameNorth Shore-lij Medical Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053688572
PECOS PAC ID: 3375701568
Enrollment ID: O20120220000262
Entity NameMontefiore New Rochelle Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295163244
PECOS PAC ID: 0345474706
Enrollment ID: O20150310001611
Entity NameEast Post Road Medical Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841767274
PECOS PAC ID: 6406198506
Enrollment ID: O20190419000178

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. Marie Louies Lamsen 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
Marie Louies Lamsen, MD
24 Hospital Ave,
Danbury, CT 06810-6077

Ph: (203) 739-6959		Marie Louies Lamsen, MD
24 Hospital Ave,
Danbury, CT 06810-6077

Ph: (203) 739-6959

Reviews and Comments


Internal Medicine Doctors in Danbury, CT

Dr. David Louisia, MD
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Dr. Shivayogi V Magavi, MD
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Andrew Keller, M.D.
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Mary E. Blackman, M.D.
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Practice Location: 79 Sand Pit Road, 102, Danbury, CT 06810
Phone: 203-749-5700    
Nirmalamma S Magavi, MD
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Medicare: May Accept Medicare Assignments
Practice Location: 57 North St, Suite 103, Danbury, CT 06810
Phone: 203-744-7007    
Dr. Michael Spiegel, M.D.
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Medicare: May Accept Medicare Assignments
Practice Location: 33 Germantown Rd, 1st Floor, Danbury, CT 06810
Phone: 203-794-5600    Fax: 203-794-5611
Michael Cohenuram, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 24 Hospital Ave, Danbury, CT 06810
Phone: 203-797-7742    Fax: 203-830-2090

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.