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

MS. Mary Schaeffer, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1396984787

MS. Mary Schaeffer, NP is a Nurse Practitioner in New York, New York. Qualified in 2018, 8 years ago. Practices with Physician Affiliate Group of New York PC, a 1,224-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
8
Licensed in
NY
In the registry since
2009
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

423 E 23rd St Patient Services
New York, NY 10010-5011
Phone: (212) 686-7500
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

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence F-401179 (NY)

Record details

NPI number1396984787
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedFebruary 10, 2009
Last updated in NPPESMay 22, 2013

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Physician Affiliate Group Of New York Pc — 1224 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in New York