Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Maryann Danielle Pappas, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1104791706

MS. Maryann Danielle Pappas, ACNP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2025, 1 year ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
1
Licensed in
MO
In the registry since
2025
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1 Barnes Jewish Hospital Plz Dept Anesthesiology
Saint Louis, MO 63110-1003
Phone: (800) 862-9980
Fax: (314) 362-1185
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 2025037502 (MO)

Record details

NPI number1104791706
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedOctober 6, 2025
Last updated in NPPESJanuary 5, 2026
Certification dateDecember 16, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Washington University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2986 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis