Physician Profile
Unclaimed ProfileAbout O'CONNOR
Based in Phoenix, AZ, Ayrn D O'Connor, M.D. is listed in the NPI registry under medical toxicology. Ayrn graduated from Indiana University School of Medicine in 2000. Ayrn is also listed as specializing in internal medicine and emergency medicine. Medicare claims data shows Ayrn provided 36 services to 36 patients.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (602) 839-2391
- Email not available
Practice Locations
1012 E WILLETTA ST FL 2
Phoenix, AZ 85006
Procedures Most Often Billed to Medicare
36 services · 36 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
36 |
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.
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.
Class of 2000 at Indiana University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. O'Connor?
Dr. O'Connor is a medical toxicology in Phoenix, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “MEDICAL TOXICOLOGY”.
NPI registry
What is Dr. O'Connor's address?
Dr. O'Connor is listed at 1012 E WILLETTA ST FL 2, Phoenix, AZ 85006. 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 (602) 839-2391. 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 1194785063. 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 Indiana University School of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. O'Connor have?
Dr. O'Connor has 26 years experience. Calculated from a graduation year of 2000, 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 the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.