Doctor profile · Federal record
Dr. Clare O'Connor, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Endocrinology, Diabetes & Metabolism Physician · Madison, WI
- NPI 1992123178
- Accepts Medicare
- 12 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5249 E Terrace Dr
Madison, WI 537188339
(608) 265-7406
fax (608) 265-7519 - Mailing address
-
7974 Uw Health CT
Middleton, WI 535625531
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- January 22, 2021
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (2)
- Wisconsin #65508-20 · Illinois #036143104
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1992123178. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
430
Distinct HCPCS
10
Medicare allowed
$26,384
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
36415 |
Insertion of needle into vein for collection of blood sample | 100 | 74 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 81 | 74 | $91 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 69 | 67 | $62 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 50 | 39 | $33 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $125 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 28 | 28 | $77 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 25 | 12 | $74 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 20 | 20 | $92 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 13 | 13 | $62 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 12 | 12 | $135 |
In context: peer comparison
Among 15 peers in this city , average services per provider: 77. This provider delivers 5.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
822
Patients
220
Total drug cost
$423,564
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 126 | 40 | $2,746 |
| Alendronate Sodium | Generic | 117 | 35 | $1,365 |
| Metformin Hcl | Generic | 64 | 20 | $877 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 62 | 27 | $42,819 |
| Hydrocortisone | Generic | 55 | 14 | $3,988 |
| Ozempic (Semaglutide) | Brand | 53 | 13 | $76,990 |
| Novolog Flexpen (Insulin Aspart) | Brand | 51 | 19 | $74,846 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 50 | 16 | $1,345 |
| Trulicity (Dulaglutide) | Brand | 45 | 0 | $56,421 |
| Mounjaro (Tirzepatide) | Brand | 44 | 0 | $52,977 |
Hospital affiliations
Frequently asked questions
What is Dr. Clare O'Connor's medical specialty?
Dr. Clare O'Connor practices Endocrinology, Diabetes & Metabolism Physician in Madison, WI.
Where does Dr. Clare O'Connor practice?
Dr. Clare O'Connor practices at 5249 E Terrace Dr, Madison, WI 537188339. Office phone: 6082657406.
What is Dr. Clare O'Connor's NPI?
Dr. Clare O'Connor's National Provider Identifier (NPI) is 1992123178, issued by NPPES.
Does Dr. Clare O'Connor accept Medicare assignment?
Yes. Dr. Clare O'Connor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clare O'Connor commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.