Physician Profile
Unclaimed ProfileAbout O'CONNOR
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Areas of Expertise
Common questions
What kind of doctor is Dr. O'Connor?
Dr. O'Connor is a surgical critical care in Baltimore, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Surgical Critical Care”.
NPI registry
What is Dr. O'Connor's address?
Dr. O'Connor is listed at 22 S GREENE ST, Baltimore, MD 21201. 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 (410) 328-6704. 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 1619904455. 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
How much experience does Dr. O'Connor have?
Dr. O'Connor has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
What procedures does Dr. O'Connor perform?
According to Medicare billing data, Dr. O'Connor provides treatments such as dialysis procedure including 1 evaluation, 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
- (410) 328-6704
- Email not available
Practice Locations
22 S GREENE ST
Baltimore, MD 21201
Procedures Most Often Billed to Medicare
138 services · 58 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis procedure including 1 evaluation | Treatment | 90945 |
65 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
39 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
34 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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.
Also performs Dialysis procedure including 1 evaluation 8
Providers in MD 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.