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Thoracic Surgery

Michael C. O'Connor Jr., MD

Works at hospitals in Boston, MA · Brighton, MA · Brockton, MA … · Massachusetts

Summary

Michael C. O'Connor Jr., MD (Thoracic Surgery) is listed by Medicare at 4 hospitals in Boston, MA, Brighton, MA and Brockton, MA and other places. NPI 1851812218. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michael C. O'Connor Jr., joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Thoracic SurgeryPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
9Years since medical school (graduated 2017)
MaleGender (as listed)
BMC Affiliated Physicians, Inc.Group practice (+1 more)

Quick answers

Which hospitals does Michael C. O'Connor Jr. work at?
Medicare's official clinician data lists Michael C. O'Connor Jr. at 4 hospitals: Boston Medical Center, Boston Medical Center-Brighton, Good Samaritan Medical Center and Holy Family Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael C. O'Connor Jr. see patients?
Medicare's clinician data lists 7 practice locations, including Boston, MA, Brighton, MA and Brockton, MA. Call before your visit to confirm the address.
What is Michael C. O'Connor Jr.'s specialty?
Medicare lists Thoracic Surgery as the primary specialty.
Does Michael C. O'Connor Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Michael C. O'Connor Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Michael C. O'Connor Jr. offer telehealth?
Medicare's clinician data says Michael C. O'Connor Jr. offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Michael C. O'Connor Jr.?
(617) 638-8605, as listed in official Medicare / NPI Registry data.
What is Michael C. O'Connor Jr.'s NPI number?
1851812218. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael C. O'Connor Jr. works

Medicare's Facility Affiliation Data lists Michael C. O'Connor Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michael C. O'Connor Jr. is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Michael C. O'Connor Jr. as a member of these groups (CMS data updated 2026-10-02).

  • BMC Affiliated Physicians, Inc.564 clinicians in the group
  • Boston University General Surgical Associates, Inc.84 clinicians in the group

Specialties

Find other Thoracic Surgery doctors in Massachusetts →

Other thoracic surgeons in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

All thoracic surgeons in Boston →

Clinician information

CredentialMD
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851812218
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians