Marilyn Rivas, LCSW - Medicare Clinical Social Worker in Whittier, CA

Marilyn Rivas, LCSW is a medicare enrolled "Social Worker - Clinical" provider in Whittier, California. Her current practice location is 6737 Bright Ave Ste B9, Whittier, California. You can reach out to her office (for appointments etc.) via phone at (657) 799-1844.

Marilyn Rivas is licensed to practice in California (license number 81992) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1043715949.

Contact Information

Marilyn Rivas, LCSW
6737 Bright Ave Ste B9,
Whittier, CA 90601-4315
(657) 799-1844
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameMarilyn Rivas
GenderFemale
SpecialitySocial Worker - Clinical
Location6737 Bright Ave Ste B9, Whittier, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1043715949
  • Provider Enumeration Date: 03/24/2018
  • Last Update Date: 07/27/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1254675507
  • Enrollment ID: I20181128000479

Medical Identifiers

Medical identifiers for Marilyn Rivas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043715949NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 81992 (California)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. Marilyn Rivas allows following entities to bill medicare on her behalf.
Entity NameMidwest Post-acute Care Of California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326490871
PECOS PAC ID: 4183905490
Enrollment ID: O20161228001832
Entity NameMpac Smh Of California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821660960
PECOS PAC ID: 6002206380
Enrollment ID: O20211130001905

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. Marilyn Rivas 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
Marilyn Rivas, LCSW
6737 Bright Ave Ste B9,
Whittier, CA 90601-4315

Ph: (657) 799-1844
Marilyn Rivas, LCSW
6737 Bright Ave Ste B9,
Whittier, CA 90601-4315

Ph: (657) 799-1844

Reviews and Comments


Social Worker in Whittier, CA

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Phone: 562-698-6647    Fax: 562-698-6072
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Medicare: Not Enrolled in Medicare
Practice Location: 10155 Colima Rd, Whittier, CA 90603
Phone: 562-692-0383    Fax: 562-692-0380

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.