Larissa Olson, LCSW - Medicare Clinical Social Worker in Missoula, MT

Larissa Olson, LCSW is a medicare enrolled "Social Worker - Clinical" provider in Missoula, Montana. She graduated from medical school in 2016 and has 8 years of diverse experience with area of expertise as Clinical Social Worker. Her current practice location is 2423 Mullan Rd, Missoula, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 499-2472.

Larissa Olson is licensed to practice in Montana (license number 32069) 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 1588138127.

Contact Information

Larissa Olson, LCSW
2423 Mullan Rd,
Missoula, MT 59808-1827
(406) 499-2472
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameLarissa Olson
GenderFemale
SpecialityClinical Social Worker
Experience8 Years
Location2423 Mullan Rd, Missoula, Montana
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:
  • Larissa Olson graduated from medical school in 2016
  NPI Data:
  • NPI Number: 1588138127
  • Provider Enumeration Date: 01/16/2019
  • Last Update Date: 06/03/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1052651122
  • Enrollment ID: I20190327003257

Medical Identifiers

Medical identifiers for Larissa Olson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588138127NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 32069 (Montana)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. Larissa Olson allows following entities to bill medicare on her behalf.
Entity NameRchp Billings - Missoula Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376946913
PECOS PAC ID: 8426370842
Enrollment ID: O20150312000492
Entity NameLarissa Olson, Lcsw Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205390861
PECOS PAC ID: 0143560219
Enrollment ID: O20190327003235

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. Larissa Olson 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
Larissa Olson, LCSW
2423 Mullan Rd,
Missoula, MT 59808-1827

Ph: (406) 499-2472
Larissa Olson, LCSW
2423 Mullan Rd,
Missoula, MT 59808-1827

Ph: (406) 499-2472

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.