MARY KATHERINE O'SULLIVAN DNP, ARNP
NPI 1699389494
Nurse Practitioner - Acute Care in New York, NY

Q: What is Mary O'sullivan's NPI number?

The NPI number for Mary O'sullivan is 1699389494. It was assigned to this individual provider in the NPPES registry on August 31, 2020.

Q: What is Mary O'sullivan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Q: When was this NPI record last updated?

The NPPES record for Mary O'sullivan was last updated on May 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 31, 2020PECOS Enrolled

1275 YORK AVE, NEW YORK, NY 10065(347) 798-9213 Get Directions Write a Review

NPPES record last updated: May 5, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 5, 2025, Mar 28, 2025, Jun 8, 2023 and 1 more (4 updates tracked since 2020).

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About Mary Katherine O'sullivan Dnp, Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY KATHERINE O'SULLIVAN DNP, ARNP (NPI 1699389494) is an individual acute care provider in New York, New York, licensed in New York (3290436) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699389494

Entity TypeIndividualFemale

Primary Taxonomy363LA2100X

Provider Legal NameMARY KATHERINE O'SULLIVANCredential: DNP, ARNP

Location Address1275 YORK AVENew York, NY 10065-6007

Mailing Address1275 York AveNew York, NY 10065-6007

Phone(347) 798-9213

Sole ProprietorNo

Enumeration DateAugust 31, 2020

Last NPPES UpdateMay 5, 20254 updates tracked since enumeration

NPPES CertifiedMay 5, 2025

✔ NPI 1699389494 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LA2100X

Licenses✔ Licensed in NY · 3290436✔ Licensed in WA · AP61441998

1275 YORK AVE, New York, NY 10065

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Katherine O'sullivan Dnp, Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10065 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$102.04 typical visit price

range $65.69 – $198.19

Typical copayment $25.51 (range $16.42 – $49.54)

Most-billed visit code 99203

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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