Physician Profile
Unclaimed ProfileAbout O'CONNOR
Michael O'Connor practises anesthesiology in Chicago, IL. Michael is a 1987 graduate of University of Chicago, Pritzker School of Medicine. Michael is also listed as specialising in anesthesiology — critical care.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. O'Connor?
Dr. O'Connor is an anesthesiology in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
What is Dr. O'Connor's address?
Dr. O'Connor is listed at 5841 S MARYLAND AVE, Chicago, IL 60637. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. O'Connor?
The number on file is (888) 824-0200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. O'Connor?
Dr. O'Connor's National Provider Identifier is 1083731327. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. O'Connor train?
Dr. O'Connor attended University of Chicago, Pritzker School of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. O'Connor have?
Dr. O'Connor has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. O'Connor perform?
According to Medicare billing data, Dr. O'Connor provides treatments such as anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope and anesthesia for other procedure on large bowel using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. O'Connor's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Connor. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (888) 824-0200
- Email not available
Practice Locations
5841 S MARYLAND AVE
Chicago, IL 60637
Procedures Most Often Billed to Medicare
234 services · 122 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | Anaesthesia | 00731 |
23 |
| Anesthesia for other procedure on large bowel using an endoscope | Anaesthesia | 00811 |
12 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
138 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
61 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other anesthesiology specialists in Chicago 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Chicago, Pritzker School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at University of Chicago, Pritzker School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 8
Providers in IL who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.