Denisa Hagau, M.D.
NPI 1861703910 · Cardiovascular Disease Physician · Mason City, IA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denisa Hagau, M.D. is a Cardiovascular Disease Physician provider in Mason City, IA (NPI 1861703910).
Provider details
- NPI number
- 1861703910
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- LP01915 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,937 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 636 | $64 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 290 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 226 | $118 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 144 | $3 |
| Ultrasound of Heart Blood Flow, Valves and Chambers, Follow-Up93321 | 138 | $7 |
| Ultrasound of Heart, Follow-Up |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 841 | 286 |
| Atorvastatin Calcium | 510 | 184 |
| Losartan Potassium | 509 | 186 |
| Apixabanbrand: Eliquis | 384 | 101 |
| Torsemide | 379 | 145 |
| Rosuvastatin Calcium | 348 | 117 |
| Empagliflozin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$356 across 14 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-23
- Last updated
- 2025-02-24
- Certified
- 2025-02-24
Frequently asked questions
- What is Denisa Hagau's NPI number?
- Denisa Hagau's National Provider Identifier (NPI) is 1861703910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denisa Hagau's specialty?
- Denisa Hagau is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Denisa Hagau located?
- Denisa Hagau's practice location on file with NPPES is 250 S Crescent Dr, Mason City, IA 50401-2926.
- What is Denisa Hagau's phone number?
- The practice phone number listed in the NPPES registry for Denisa Hagau is (641) 494-5300.
- Does Denisa Hagau accept Medicare?
- Denisa Hagau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denisa Hagau's NPI active?
- Yes — Denisa Hagau's NPI (1861703910) is active in the NPPES registry as of the last update on 2025-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.