Anne Oconnor, MD
NPI 1942245477 · Cardiovascular Disease Physician · Madison, WI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anne Oconnor, MD is a Cardiovascular Disease Physician provider in Madison, WI (NPI 1942245477).
Provider details
- NPI number
- 1942245477
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 61132 (WI)
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
2,367 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 880 | $8 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 454 | $64 |
| Heart Muscle Strain Imaging93356 | 208 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 107 | $99 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 95 | $15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 322 | 114 |
| Rosuvastatin Calcium | 265 | 92 |
| Amlodipine Besylate | 228 | 79 |
| Spironolactone | 212 | 59 |
| Atorvastatin Calcium | 197 | 68 |
| Furosemide | 169 | 51 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-18
- Last updated
- 2021-01-29
- Certified
- 2021-01-29
Frequently asked questions
- What is Anne Oconnor's NPI number?
- Anne Oconnor's National Provider Identifier (NPI) is 1942245477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anne Oconnor's specialty?
- Anne Oconnor is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Anne Oconnor located?
- Anne Oconnor's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0001.
- What is Anne Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Anne Oconnor is (608) 263-1530.
- Does Anne Oconnor accept Medicare?
- Anne Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anne Oconnor's NPI active?
- Yes — Anne Oconnor's NPI (1942245477) is active in the NPPES registry as of the last update on 2021-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.