Timothy Oconnor, MD
NPI 1881687036 · Cardiovascular Disease Physician · Chicago, IL
Timothy Oconnor, MD is a Cardiovascular Disease Physician provider in Chicago, IL (NPI 1881687036).
Provider details
- NPI number
- 1881687036
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036065174 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,394 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 374 | $134 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 265 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 162 | $82 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 109 | $90 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 104 | $15 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 364 | 128 |
| Metoprolol Succinate | 254 | 80 |
| Levothyroxine Sodium | 181 | 56 |
| Apixabanbrand: Eliquis | 174 | 58 |
| Rosuvastatin Calcium | 172 | 54 |
| Furosemide | 163 | 63 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-23
- Last updated
- 2016-05-25
Frequently asked questions
- What is Timothy Oconnor's NPI number?
- Timothy Oconnor's National Provider Identifier (NPI) is 1881687036, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Oconnor's specialty?
- Timothy Oconnor is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Oconnor located?
- Timothy Oconnor's practice location on file with NPPES is 7447 W Talcott Ave, Chicago, IL 60631-3745.
- What is Timothy Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Timothy Oconnor is (773) 775-1900.
- Is Timothy Oconnor's NPI active?
- Yes — Timothy Oconnor's NPI (1881687036) is active in the NPPES registry as of the last update on 2016-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.