npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › Missouri › 363LA2100X

Marissa Shearer, MSN, APRN, ACNP-BC

NPI 1447194782 · on the registry since 2026

Practice

Address
1201 S Grand Blvd
Saint Louis, MO 63104
Phone
(314) 607-8156
Organisation at this address
Ssm-Sluh Inc
Ssm-Sluh Inc
St Louis University
St Louis University
St Louis University
Inferred from a shared address, not stated in the registry.
Clinicians at this address
456

Additional practice sites

  • 12303 De Paul Dr, Bridgeton, MO

Registry record

Primary taxonomy
363LA2100X
363LA2100X
Also registered as
207R00000X
Licence states on file
MO
From the registry's licence fields, which are often incomplete.
Sex
Female
Record last updated
2026-04-17

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Missouri