NPPES file of Aug 9, 2026

Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC

Acute Care Nurse Practitioner · Saint Louis, MO

Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC is an acute care nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1447194782, issued on Apr 16, 2026. Check the license (Missouri 2026007462, as entered in NPPES) with the Missouri board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1447194782
Name
Marissa Elizabeth Shearer
Credential
MSN, APRN, ACNP-BC
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
2026007462 MO
Self-reported in NPPES; status is on the state search
Practice location
1201 S Grand Blvd, Saint Louis, MO 63104
Phone
(314) 607-8156
Enumerated
Apr 16, 2026
Record last updated
Apr 17, 2026
Medicare enrollment
Enrolled (PECOS I20260501001141); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest acute care nurse practitioner records → All 441 in Missouri → Look up another NPI →

Also registered at 1201 S Grand Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daniel Aaronson, M.D.Neurological Surgery Physician1679937908
  2. Brian Abboud, MDStudent in an Organized Health Care Education/Training Program1134821879
  3. Catherine Aber, MDStudent in an Organized Health Care Education/Training Program1215878293
  4. Krystel Abi KaramStudent in an Organized Health Care Education/Training Program1912708124
  5. Timothy Adrian, APRNAcute Care Nurse Practitioner1578437182
  6. Baris Afsar, M.D.Student in an Organized Health Care Education/Training Program1235976143

Verify Marissa Elizabeth Shearer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2026007462    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Missouri license search

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Marissa Elizabeth Shearer among 441 acute care nurse practitioner records in Missouri

Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC is one of 441 acute care nurse practitioner records with a practice address in Missouri. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2026, is newer than 95% of them.

  • NPI issued2026 · 95% of these records are older, 0% newer
  • In a Medicare fileNo · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2025 · median 2019 among the 324 with a school on file
  • Record last updated2026 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Missouri

There are 441 acute care nurse practitioner records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 441 in Missouri → Every provider in Saint Louis → Acute Care Nurse Practitioner nationwide →

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Timothy Adrian, APRNSaint Louis, MO 631041578437182
  2. Zachary Ballek, AGACNP-BCSaint Louis, MO 631041437878071
  3. Larisa Kovaleva, NPSaint Louis, MO 631041194455204
  4. Doug Longo, APRNSaint Louis, MO 631041003276866
  5. Maria MartinSt Louis, MO 631041417670449
  6. Branden Schweiss, NPSaint Louis, MO 631041265179592
  7. Angela Struemph, ACNPSaint Louis, MO 631041679107734
  8. Mary Cunningham, APN CRNFASaint Louis, MO 631061659432094

Common questions

What is Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC's NPI number?

Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC's National Provider Identifier (NPI) is 1447194782, issued on Apr 16, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC located?

The NPPES record lists a practice address at 1201 S Grand Blvd, Saint Louis, MO, 63104. Phone: (314) 607-8156. Providers update this record themselves, so call before visiting.

How can I verify Marissa Elizabeth Shearer, MSN, APRN, ACNP-BC's license?

NPPES lists Missouri license number 2026007462, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.