Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC - Medicare Nurse Practitioner in Saint Louis, MO

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Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC is a medicare enrolled "Nurse Practitioner - Acute Care" physician in Saint Louis, Missouri. She graduated from medical school in 2025 and has 1 years of diverse experience with area of expertise as Nurse Practitioner. Her current practice location is 1201 S Grand Blvd, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 607-8156.

Marissa Elizabeth Shearer is licensed to practice in Missouri (license number 2026007462) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1447194782.

Contact Information

Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC
1201 S Grand Blvd,
Saint Louis, MO 63104-1016
(314) 607-8156
Not Available

Map and Direction




Physician's Profile

Full NameMarissa Elizabeth Shearer
GenderFemale
SpecialityNurse Practitioner
Experience1 Years
Location1201 S Grand Blvd, Saint Louis, Missouri
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marissa Elizabeth Shearer graduated from medical school in 2025
  NPI Data:
  • NPI Number: 1447194782
  • Provider Enumeration Date: 04/16/2026
  • Last Update Date: 04/17/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 1658849252
  • Enrollment ID: I20260501001141

Medical Identifiers

Medical identifiers for Marissa Elizabeth Shearer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447194782NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 2026007462 (Missouri)Secondary
363LA2100XNurse Practitioner - Acute Care 2026007462 (Missouri)Primary

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. Marissa Elizabeth Shearer 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
Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC
10711 Saint Matthew Ln,
Saint Ann, MO 63074-2616

Ph: (314) 607-8156		Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC
1201 S Grand Blvd,
Saint Louis, MO 63104-1016

Ph: (314) 607-8156

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.