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MRS. CLARE MARIE O'CONNOR RN, CPNP-AC
NPI 1780918292
Nurse Practitioner - Pediatrics in Boston, MA

Active since September 30, 2009PECOS Enrolled
300 LONGWOOD AVE, 8 EAST - CV SURGERY, BOSTON, MA 02115(617) 355-8083(617) 734-1034 Get Directions Write a Review

NPPES record last updated: September 30, 2009. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Mrs. Clare Marie O'connor Rn, Cpnp-ac NPPES

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

MRS. CLARE MARIE O'CONNOR RN, CPNP-AC (NPI 1780918292) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (209082) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS and is a graduate of Other (1998).

NPPES Registry Identity

NPI1780918292
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMRS. CLARE MARIE O'CONNORCredential: RN, CPNP-AC
Location Address300 LONGWOOD AVE, 8 EAST - CV SURGERYBoston, MA 02115-5724
Mailing Address300 Longwood Ave, 8 East - Cv SurgeryBoston, MA 02115-5724 · (617) 355-8083 · Fax (617) 734-1034
Phone(617) 355-8083
Fax(617) 734-1034
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateSeptember 30, 2009
✔ NPI 1780918292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MA · 209082
300 LONGWOOD AVE, Boston, MA 02115
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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)

Mrs. Clare Marie O'connor Rn, Cpnp-ac is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8426548389
PECOS Enrollment IDI20251107003672
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 Clare O'connor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chmc Cardiovascular Surgical Foundation Inc
Same address
Thoracic Surgery (Cardiothoracic Vascular Surgery)
300 LONGWOOD AVE, BADER 273
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 24 clinicians in this Medicare group
NPI 1073622544 (617) 355-7899

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 02115 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MRS. LAUREN ASHLEY SHARIS P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

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 Clare O'connor's NPI number?

The NPI number for Clare O'connor is 1780918292. It was assigned to this individual provider in the NPPES registry on September 30, 2009.

Where is Clare O'connor located?

Clare O'connor practices at 300 Longwood Ave 8 East - Cv Surgery, Boston, MA 02115. The listed phone number is (617) 355-8083.

What is Clare O'connor's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Clare O'connor enrolled in Medicare?

Yes. Clare O'connor is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Clare O'connor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clare O'connor reassigns Medicare benefits to Chmc Cardiovascular Surgical Foundation Inc (Boston, MA). 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 Clare O'connor'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 Clare O'connor was last updated on September 30, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.