Dr Marian Louis, MD - Medicare Psychiatry in Sacramento, CA

Dr Marian Louis, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Sacramento, California. She went to New York Medical College and graduated in 1978 and has 46 years of diverse experience with area of expertise as Psychiatry. She is a member of the group practice County Of Sacramento and her current practice location is 650 Howe Ave Bldg 400-b, Sacramento, California. You can reach out to her office (for appointments etc.) via phone at (916) 993-4131.

Dr Marian Louis is licensed to practice in California (license number G140111) 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 1457491144.

Contact Information

Dr Marian Louis, MD
650 Howe Ave Bldg 400-b,
Sacramento, CA 95825-4731
(916) 993-4131
Not Available

Map and Direction




Physician's Profile

Full NameDr Marian Louis
GenderFemale
SpecialityPsychiatry
Experience46 Years
Location650 Howe Ave Bldg 400-b, Sacramento, California
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:
  • Dr Marian Louis attended and graduated from New York Medical College in 1978
  NPI Data:
  • NPI Number: 1457491144
  • Provider Enumeration Date: 02/08/2007
  • Last Update Date: 06/02/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3072783232
  • Enrollment ID: I20180910003057

Medical Identifiers

Medical identifiers for Dr Marian Louis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457491144NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 155532 (New York)Secondary
2084P0800XPsychiatry & Neurology - Psychiatry G140111 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Sacramento034523124742

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 Marian Louis allows following entities to bill medicare on her behalf.
Entity NameYolo County Health And Human Services Agency
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053443135
PECOS PAC ID: 2668370214
Enrollment ID: O20031222000165
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699885079
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000784
Entity NameCounty Of Sacramento
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043386659
PECOS PAC ID: 0345231247
Enrollment ID: O20110801000770

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 Marian Louis 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 Marian Louis, MD
650 Howe Ave Bldg 400-b,
Sacramento, CA 95825-4731

Ph: (916) 933-4131
Dr Marian Louis, MD
650 Howe Ave Bldg 400-b,
Sacramento, CA 95825-4731

Ph: (916) 993-4131

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).

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.