Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

MS. Mary Ann Patricia O'Connor, FNP

Individual provider Family Nurse Practitioner · NPI 1982863320

MS. Mary Ann Patricia O'Connor, FNP is a Family Nurse Practitioner in New York, New York. Licensed in New York. Registered with an NPI since 2008.

Licensed in
NY
In the registry since
2008
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

160 E 53rd St
New York, NY 10022-5243 Not confirmed with CMS for 18 years — call before visiting
Phone: (212) 610-0488
Fax: (212) 588-1363
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 33 335053 (NY)

Record details

NPI number1982863320
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedJune 2, 2008
Last updated in NPPESJune 2, 2008

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients114
Services billed 159 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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