CORNELIUS J O'CONNOR JR. MD
NPI 1295831766
Anesthesiology in Burlington, MA

Q: What is Cornelius O'connor's NPI number?

The NPI number for Cornelius O'connor is 1295831766. It was assigned to this individual provider in the NPPES registry on September 15, 2006.

Q: What is Cornelius O'connor's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Active since September 15, 2006PECOS Enrolled

41 MALL RD, BURLINGTON, MA 01805(781) 744-8132(781) 744-2273 Get Directions Write a Review

NPPES record last updated: April 7, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Cornelius J O'connor Jr. Md NPPES

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

CORNELIUS J O'CONNOR JR. MD (NPI 1295831766) is an individual anesthesiology provider in Burlington, Massachusetts, licensed in Massachusetts (55429) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1983).

NPPES Registry Identity

NPI1295831766

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameCORNELIUS J O'CONNOR JR.Credential: MD

Location Address41 MALL RDBurlington, MA 01805-0001

Mailing Address41 Mall RdBurlington, MA 01805-0001 · (781) 744-8132 · Fax (781) 744-2273

Phone(781) 744-8132

Fax(781) 744-2273

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 1983

Enumeration DateSeptember 15, 2006

Last NPPES UpdateApril 7, 2011

✔ NPI 1295831766 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in MA · 55429

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

41 MALL RD, Burlington, MA 01805

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Other Identifiers 3

Medicare UPINB98783MA

Medicare PINAX1739MA

Medicaid110045040AMA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health, WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cornelius J O'connor Jr. Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8123075975

PECOS Enrollment IDI20050404000641

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 Reassignments

Medicare enrollment records show Cornelius O'connor reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts General Physicians Organization Inc

11 mi

Dermatology

55 FRUIT ST, BUL 2
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,360 clinicians in this Medicare group

NPI 1801874573 (617) 724-0287

The General Hospital Corporation

11 mi

General Acute Care Hospital

55 FRUIT ST, BULFINCH 360
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,234 clinicians in this Medicare group

NPI 1023049236 (617) 726-2000

Lahey Clinic, Inc

14 mi

Internal Medicine

1 ESSEX CENTER DR
Peabody, MA 01960

Reassigned Medicare billing, Massachusetts enrollment
1,841 clinicians in this Medicare group

NPI 1063447316 (781) 744-8000

Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is

15 mi

Obstetrics & Gynecology

392 CHESTNUT ST
Needham, MA 02492

Reassigned Medicare billing, Massachusetts enrollment
556 clinicians in this Medicare group

NPI 1255818472 (617) 754-1800

Capa Anesthesia LLC

24 mi

Anesthesiology

99 LIBBEY INDUSTRIAL PARK
Weymouth, MA 02189

Reassigned Medicare billing, Massachusetts enrollment
115 clinicians in this Medicare group

NPI 1629723002 (781) 331-0537

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

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142

Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.

193 services178 patients

Anesthesia for other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

35 services35 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

23 services23 patients

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

22 services22 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

18 services18 patients

Anesthesia for other procedure on eye 00140

Anesthesia for an eye procedure involves administering medication to numb your eye and surrounding area, ensuring you feel no pain during the operation. It can be local (only the eye area) or general (whole body). It's safe and helps make the procedure comfortable.

13 services11 patients

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.

SAHOOR KHAN

Internal Medicine (Interventional Cardiology)