Theresa Brennan, MD
NPI 1063400620 · Cardiovascular Disease Physician · Iowa City, IA
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Brennan, MD is a Cardiovascular Disease Physician provider in Iowa City, IA (NPI 1063400620).
Provider details
- NPI number
- 1063400620
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 30434 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
259 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 | 86 | $89 |
| Critical Care, First 30-74 Minutes99291 | 63 | $194 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 51 | $72 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 16 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 16 | $133 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 108 | 39 |
| Lisinopril | 83 | 28 |
| Rosuvastatin Calcium | 69 | 22 |
| Furosemide | 69 | 22 |
| Metoprolol Succinate | 68 | 23 |
| Losartan Potassium | 57 | 21 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-07
- Last updated
- 2019-01-18
Frequently asked questions
- What is Theresa Brennan's NPI number?
- Theresa Brennan's National Provider Identifier (NPI) is 1063400620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Brennan's specialty?
- Theresa Brennan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Theresa Brennan located?
- Theresa Brennan's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Theresa Brennan's phone number?
- The practice phone number listed in the NPPES registry for Theresa Brennan is (319) 356-1607.
- Does Theresa Brennan accept Medicare?
- Theresa Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Brennan's NPI active?
- Yes — Theresa Brennan's NPI (1063400620) is active in the NPPES registry as of the last update on 2019-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.