Irina Ionova, MD
NPI 1174817621 · Internal Medicine Physician · Menomonee Falls, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irina Ionova, MD is a Internal Medicine Physician provider in Menomonee Falls, WI (NPI 1174817621).
Provider details
- NPI number
- 1174817621
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- R82841 (AZ)
Specialties & taxonomies
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
363 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 165 | $90 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 118 | $129 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 80 | $122 |
Typical Medicare-allowed amounts for these services range $90–$129 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 116 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 418 | 102 |
| Rosuvastatin Calcium | 289 | 83 |
| Amlodipine Besylate | 265 | 71 |
| Omeprazole | 259 | 56 |
| Levothyroxine Sodium | 253 | 60 |
| Losartan Potassium | 243 | 54 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$104 across 1 record (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
Additional practice locations (1)
- 420 E Division StFond Du Lac, WI 54935-4560Phone: (920) 926-8420Fax: (920) 926-8913
Registry dates
- Enumerated
- 2011-06-01
- Last updated
- 2021-03-03
- Certified
- 2021-03-03
Frequently asked questions
- What is Irina Ionova's NPI number?
- Irina Ionova's National Provider Identifier (NPI) is 1174817621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irina Ionova's specialty?
- Irina Ionova is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Irina Ionova located?
- Irina Ionova's practice location on file with NPPES is W180n8085 Town Hall Rd, Menomonee Falls, WI 53051-3518.
- What is Irina Ionova's phone number?
- The practice phone number listed in the NPPES registry for Irina Ionova is (262) 251-1000.
- Does Irina Ionova accept Medicare?
- Irina Ionova is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irina Ionova's NPI active?
- Yes — Irina Ionova's NPI (1174817621) is active in the NPPES registry as of the last update on 2021-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.