Theresa Marie Brennan, MD
Cardiovascular Disease Physician · Iowa City, IA
Theresa Marie Brennan, MD is a cardiovascular disease physician with a practice address in Iowa City, Iowa, and NPI 1063400620, issued on Oct 7, 2005. Check the license (Iowa 30434, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Theresa Marie Brennan
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 30434 IA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-1607
- Enumerated
- Oct 7, 2005
- Record last updated
- Jan 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (319) 356-4552
- Medicaid ID
- 0130765 IA
- Medicare enrollment
- Enrolled (PECOS I20070301000000); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1992
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 169 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Helena Aaberg, MDAnesthesiology Physician1689301558
- Abdullah Abbasi, MDGastroenterology Physician1932944204
- Mary Jo Abbott, RPHPharmacist1841325875
- Francois Abboud, MDCardiovascular Disease Physician1598753113
- Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
- Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160
Verify Theresa Marie Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 30434Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,013 Medicare Part D claims for 119 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium108 claims
- Lisinopril83 claims
- Furosemide69 claims
- Rosuvastatin Calcium69 claims
- Metoprolol Succinate68 claims
- Losartan Potassium57 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- State University OF IowaIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa Marie Brennan among 169 cardiovascular disease physician records in Iowa
Theresa Marie Brennan, MD is one of 169 cardiovascular disease physician records with a practice address in Iowa. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 73% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1992 · median 2000 among the 119 with a school on file
- Record last updated2019 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Iowa
There are 169 cardiovascular disease physician records in Iowa.
All 169 in Iowa → Every provider in Iowa City → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Francois Abboud, MDIowa City, IA 522421598753113
- Christopher Benson, MD FACPIowa City, IA 522421225026859
- Catherine Bird, DOIowa City, IA 522421194713750
- Donald Brown, MDIowa City, IA 522421093702953
- John Chase, MDIowa City, IA 522421487642013
- Robert Felder, MDIowa City, IA 522421760470397
- Ellen Gordon, MDIowa City, IA 522421407844343
- Donald Heistad, MDIowa City, IA 522421982692505
Common questions
What is Theresa Marie Brennan, MD's NPI number?
Theresa Marie Brennan, MD's National Provider Identifier (NPI) is 1063400620, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Marie Brennan, MD located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-1607. Providers update this record themselves, so call before visiting.
How can I verify Theresa Marie Brennan, MD's license?
NPPES lists Iowa license number 30434, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Theresa Marie Brennan, MD prescribe under Medicare Part D?
In 2024, Theresa Marie Brennan, MD had 1,013 Medicare Part D claims for 119 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.