Denisa Hagau, M.D.
Cardiovascular Disease Physician · Mason City, IA
Denisa Hagau, M.D. is a cardiovascular disease physician with a practice address in Mason City, Iowa, and NPI 1861703910, issued on Jun 23, 2010. Check the license (Iowa MD-43219, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Denisa Hagau
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- MD-43219 IA
43219 IA
ME167219 FL
LP01915 RI
Self-reported in NPPES; status is on the state search - Practice location
- 250 S Crescent Dr, Mason City, IA 50401
- Phone
- (641) 494-5300
- Enumerated
- Jun 23, 2010
- Record last updated
- Jun 16, 2026
- Fax
- (641) 494-5321
- Medicare enrollment
- Enrolled (PECOS I20250310003066); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 250 S Crescent Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Adams, M.D.Urology Physician1336301563
- Andrea Anderson, PMHNPPsychiatric/Mental Health Nurse Practitioner1760065023
- Byron Beasley, MDCardiovascular Disease Physician1053398180
- Donald Beitzel, P.A.Physician Assistant1518939982
- Gregory Blank, PAPhysician Assistant1831161736
- Chad Boyer, PA-CPhysician Assistant1265638829
Verify Denisa Hagau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-43219Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
6,344 Medicare Part D claims for 1,031 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Metoprolol Succinate841 claims
- Atorvastatin Calcium510 claims
- Losartan Potassium509 claims
- Eliquis384 claims
- Torsemide379 claims
- Rosuvastatin Calcium348 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.
Industry payments in 2024: $355.87
14 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North Iowa Mercy ClinicsMason City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
9 cardiovascular disease physician records list a practice address in Mason City
They are 9 of the 866 NPPES records with a practice address in Mason City, and 169 cardiovascular disease physician records in Iowa.
All 9 in Mason City → All 169 in Iowa → Every provider in Mason City →
Other cardiovascular disease physician records in Iowa
- Deepika Reddy Abbadi, M.DDes Moines, IA1205191210
- Francois Abboud, MDIowa City, IA1598753113
- Ola AbdelkarimIowa City, IA1780378588
- Mostafa Abohelwa, MDIowa City, IA1821605395
- Shakuntala Advani, M.D.West Des Moines, IA1861473316
- Ferhaan Ahmad, M.D.Iowa City, IA1699747881
- Tauseef Akhtar, MDMason City, IA1508218009
- Fahed Al Darazi, MDCedar Rapids, IA1497063200
- Ali Albaghdadi, M.D.Clinton, IA1063479319
- Saadi Albaghdadi, M.D.Clinton, IA1184681637
Common questions
What is Denisa Hagau, M.D.'s NPI number?
Denisa Hagau, M.D.'s National Provider Identifier (NPI) is 1861703910, issued on Jun 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Denisa Hagau, M.D. located?
The NPPES record lists a practice address at 250 S Crescent Dr, Mason City, IA, 50401. Phone: (641) 494-5300. Providers update this record themselves, so call before visiting.
How can I verify Denisa Hagau, M.D.'s license?
NPPES lists Iowa license number MD-43219, 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 Denisa Hagau, M.D. prescribe under Medicare Part D?
In 2024, Denisa Hagau, M.D. had 6,344 Medicare Part D claims for 1,031 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.