Dr. John O'Connor, M.D.
What this data tells you about Dr. O'Connor
Dr. John O'Connor is an anesthesiology specialist in Worcester, MA, with 17 years of NPI registration. Based on federal Medicare data, Dr. O'Connor performed 339 Medicare services in 2023. These records do not provide a deduplicated patient total.
The Data Coverage level for Dr. O'Connor is High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary — 2023
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Anesthesia for forearm, wrist, and hand procedure This code covers the administration of anesthesia for surgical procedures involving the nerves, muscles, tendons, and tissues of the forearm, wrist, and hand. |
58 | $47 | $582 |
| Brachial plexus injection with anesthetic and/or steroid An injection of an anesthetic agent and/or steroid into the brachial plexus nerve bundle in the arm. |
33 | $54 | $840 |
| Anesthesia for knee joint scope Anesthesia administered during an arthroscopic procedure or examination of the knee joint. |
28 | $59 | $735 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
27 | $24 | $281 |
| Anesthesia for skin procedures on arms, legs, or front body This code covers anesthesia services provided for surgical procedures performed on the skin of the arms, legs, or anterior trunk. |
25 | $70 | $794 |
| Femoral nerve injection with anesthetic and/or steroid An injection of an anesthetic agent and/or steroid into the femoral nerve in the thigh. This procedure delivers medication directly to the nerve. |
18 | $50 | $898 |
| Anesthesia for lower abdomen procedure Administration of anesthesia for surgical procedures performed on the lower abdomen. |
17 | $168 | $1,829 |
| Anesthesia for anus and rectum procedure Administration of anesthesia during a surgical or diagnostic procedure involving the anus and rectum. |
17 | $58 | $753 |
| Anesthesia for total hip replacement Administration of anesthesia during a total hip replacement surgery. This code covers the anesthetic services provided for the procedure. |
16 | $158 | $1,789 |
| Anesthesia for total knee replacement Administration of anesthesia during a total knee joint replacement procedure. |
16 | $152 | $1,669 |
| Anesthesia for top of arm bone and shoulder joint procedure Administration of anesthesia for surgical procedures involving the upper arm bone and shoulder joint. |
16 | $100 | $1,195 |
| Anesthesia for upper abdomen procedure Administration of anesthesia for surgical procedures performed on the upper abdomen. |
15 | $162 | $1,852 |
| Anesthesia for urinary system procedure via urethra Administration of anesthesia for a surgical procedure on the urinary system performed through the urethra. |
14 | $52 | $664 |
| Anesthesia for lower leg, ankle, or foot bone procedure Administration of anesthesia during surgical procedures involving the bones of the lower leg, ankle, or foot. |
14 | $72 | $880 |
| Arterial line insertion A tube is inserted into an artery through the skin to allow for blood sampling or infusion. |
13 | $37 | $315 |
| Anesthesia for forearm, wrist, or hand bone procedure Administration of anesthesia during surgical procedures involving the bones of the forearm, wrist, or hand. |
12 | $58 | $750 |
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | — No payments | N/A |
| Disciplinary History | — Not included | N/A |
This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. O'Connor is a mixed practice specialist, with above-average Medicare volume (top 18% in MA), with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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