Mariela Herrera Rojas, MD - Medicare in Billings, MT

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Mariela Herrera Rojas, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" provider in Billings, Montana. She graduated from medical school in 2002 and has 24 years of diverse experience with area of expertise as Psychiatry. She is a member of the group practice Billings Clinic and her current practice location is 1020 N 27th St, Billings, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 238-2500.

Mariela Herrera Rojas is licensed to practice in Ohio (license number 57.017664) 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 1922318096.

Contact Information

Mariela Herrera Rojas, MD
1020 N 27th St,
Billings, MT 59101
(406) 238-2500
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameMariela Herrera Rojas
GenderFemale
SpecialityPsychiatry
Experience24 Years
Location1020 N 27th St, Billings, 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:
  • Mariela Herrera Rojas graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1922318096
  • Provider Enumeration Date: 10/07/2010
  • Last Update Date: 02/23/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0648583419
  • Enrollment ID: I20150722005508

Medical Identifiers

Medical identifiers for Mariela Herrera Rojas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922318096NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103TC2200XPsychologist - Clinical Child & Adolescent MED-PHYS-LIC-33952 (Montana)Secondary
2084P0800XPsychiatry & Neurology - Psychiatry 57.017664 (Ohio)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Billings Clinic6002993516815

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. Mariela Herrera Rojas allows following entities to bill medicare on her behalf.
Entity NameBillings Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326104845
PECOS PAC ID: 6002993516
Enrollment ID: O20080430000212

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. Mariela Herrera Rojas 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
Mariela Herrera Rojas, MD
Po Box 35100,
Billings, MT 59107-5100

Ph: (406) 238-2500		Mariela Herrera Rojas, MD
1020 N 27th St,
Billings, MT 59101

Ph: (406) 238-2500

Reviews and Comments



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.