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MAEVE O'SULLIVAN
NPI 1962363556
Nurse Practitioner - Adult Health in New York, NY

Active since November 21, 2025PECOS Enrolled
1275 YORK AVE, NEW YORK, NY 10065(212) 639-2000 Get Directions Write a Review

NPPES record last updated: February 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 2, 2026, Nov 21, 2025 (2 updates tracked since 2025).

About Maeve O'sullivan NPPES

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

MAEVE O'SULLIVAN (NPI 1962363556) is an individual adult health provider in New York, New York, licensed in New York (312544) and active in the NPI registry since November 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1962363556
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMAEVE O'SULLIVAN
Location Address1275 YORK AVENew York, NY 10065-6007
Mailing Address1275 York AveNew York, NY 10065-6007
Phone(212) 639-2000
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateNovember 21, 2025
Last NPPES UpdateFebruary 2, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 2, 2026
✔ NPI 1962363556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in NY · 312544
1275 YORK AVE, New York, NY 10065
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maeve O'sullivan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8820571284
PECOS Enrollment IDI20260313000709
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.

Medicare Billing Reassignment

Medicare enrollment records show Maeve O'sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Memorial Solid Tumor Group
Internal Medicine
1275 YORK AVE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 514 clinicians in this Medicare group
NPI 1699746172 (646) 227-3813

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

MRS. ZANA CORREA NP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (646) 422-4450
MS. NICOLE NOELLE REYNOLDS NP
Nurse Practitioner (Acute Care)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 682-7326
MRS. SHARLENE SEECHARRAN RN, NP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-2203
CHRISTINA MADINABEITIA DURNEY
Nurse Practitioner (Pediatrics)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-5164
ALISON GAIL MASSEY ANP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-2000
MICHAEL SCORDO
Internal Medicine (Hematology & Oncology)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-2000
AMPARO G CAMACHO NP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (646) 422-4417
DR. INES NIKOLOVSKI MBBS
Special Hospital
1275 YORK AVE, MEMORIAL SLOAN KETTERING CANCER CENTRE
NEW YORK, NY 10065
New York County (212) 639-2000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maeve O'sullivan's NPI number?

The NPI number for Maeve O'sullivan is 1962363556. It was assigned to this individual provider in the NPPES registry on November 21, 2025.

Where is Maeve O'sullivan located?

Maeve O'sullivan practices at 1275 York Ave, New York, NY 10065. The listed phone number is (212) 639-2000.

What is Maeve O'sullivan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Maeve O'sullivan enrolled in Medicare?

Yes. Maeve O'sullivan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maeve O'sullivan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maeve O'sullivan reassigns Medicare benefits to Memorial Solid Tumor Group (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maeve O'sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Maeve O'sullivan was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.