Physician Profile
Unclaimed ProfileAbout OCONNOR
Timothy W Oconnor, MD practices cardiovascular disease in Chicago, IL. According to Medicare claims data, Timothy cared for 973 Medicare patients across 1,394 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (773) 775-1900
- Email not available
Practice Locations
7447 W TALCOTT AVE STE 262
Chicago, IL 60631
Procedures Most Often Billed to Medicare
1,394 services · 973 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
265 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
104 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
64 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | Treatment | 93296 |
31 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
31 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system | Treatment | 93288 |
17 |
| Ultrasound of heart during rest, exercise and/or drug-induced stress with report | Treatment | 93350 |
12 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
374 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
162 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
109 |
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.
Other cardiologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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.
More connections — 16 related providers in 2 groups
Other cardiologists in Chicago 8
Same specialty, same city.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Dr. Oconnor's specialty?
Dr. Oconnor is a cardiologist in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Cardiovascular Disease”.
NPI registry
Where can I find Dr. Oconnor?
Dr. Oconnor is listed at 7447 W TALCOTT AVE STE 262, Chicago, IL 60631. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Oconnor?
The number on file is (773) 775-1900. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Oconnor's NPI number?
Dr. Oconnor's National Provider Identifier is 1881687036. 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 long has Dr. Oconnor been practicing?
Dr. Oconnor has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Oconnor known for?
According to Medicare billing data, Dr. Oconnor provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Oconnor confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oconnor. 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.