FRANCIS XAVIER OCONNOR (MD) – Surgery Physician, NPI 1306819867

FRANCIS XAVIER OCONNOR (MD) is a healthcare provider. based in Nantucket, Massachusetts. specializing in GENERAL SURGERY. They hold the professional credentials MD. They hold a License No. 70941 (MA). The NPI Number for FRANCIS XAVIER OCONNOR (MD) is 1306819867

Main info

Male
Sole Proprietor
39 Years Of Experience
Accepts Medicare Assignment
Name
FRANCIS XAVIER OCONNOR (MD)
NPI
1306819867
Phone
(508) 825-8100
Address
57 PROSPECT ST
Enumeration Date
7 February 2006
Last Update Date
1 September 2023

Doctor Profile

Medical School Name
TUFTS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
5088258100
Graduation Year
1987 (39 years ago)
PAC ID
7618158742
Group Practice PAC ID
6608065438
Professional Enrollment ID
I20171214002577
Address ID
MA025542799NA57XXXSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,028 GENERAL SURGERY in MA

Provider Addresses for FRANCIS XAVIER OCONNOR (MD)

  • 57 PROSPECT ST

    NANTUCKET, MA 025542799

    Phone: (508) 825-8100

    Type: Mailing

  • Naval Hospital Camp Lejeune, 100, Brewster Boulevard, Marine Corps Base Camp Lejeune, Onslow County, North Carolina, 28547, United States

    CAMP LEJEUNE NAVAL HOSPITAL

    CAMP LEJEUNE, NC 285472538

    Phone: (910) 449-2527

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2017-12-14

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20171214002577IGeneral SurgeryMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
45380Biopsy of large bowel using a flexible endoscope5757$0
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope1414$0
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare1313$0
View full utilization report →

Insurance plans in this area (ZIP 02554)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6608065438View full group profile
NameSpecialtyState
O B S T E T R I C S/ G Y N E C O L O G YMA
-CT
Family PracticeMA
D E R M A T O L O G YMA
U R O L O G YMA
U R O L O G YNH
Physician AssistantMA
A N E S T H E S I O L O G YMA

Reviews

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Frequently asked questions

Is FRANCIS XAVIER OCONNOR (MD) listed with a National Provider Identifier?
Yes — FRANCIS XAVIER OCONNOR (MD) has NPI 1306819867 on file in the registry.
Would FRANCIS XAVIER OCONNOR (MD) appear as active to a payer?
You can treat FRANCIS XAVIER OCONNOR (MD) as active for directory purposes; confirm clinical privileges separately.
What kind of doctor is FRANCIS XAVIER OCONNOR (MD)?
FRANCIS XAVIER OCONNOR (MD) is associated with Surgery Physician in the directory — Clinical services aligned with this taxonomy classification.
Is FRANCIS XAVIER OCONNOR (MD) associated with Nantucket?
Public fields place FRANCIS XAVIER OCONNOR (MD) around Nantucket, Massachusetts. Always confirm the exact site before visiting.
Does FRANCIS XAVIER OCONNOR (MD) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

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