Claudia Istrate, MD
NPI 1184135949 · Internal Medicine Physician · Wausau, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claudia Istrate, MD is a Internal Medicine Physician provider in Wausau, WI (NPI 1184135949).
Provider details
- NPI number
- 1184135949
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 68089-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 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
57 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 29 | $100 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 17 | $169 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 11 | $122 |
Typical Medicare-allowed amounts for these services range $100–$169 (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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 176 | — |
| Amlodipine Besylate | 155 | — |
| Furosemide | 148 | — |
| Metoprolol Succinate | 138 | — |
| Metoprolol Tartrate | 118 | — |
| Atorvastatin Calcium | 101 | 11 |
| Apixabanbrand: Eliquis |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$102 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
Registry dates
- Enumerated
- 2017-10-19
- Last updated
- 2023-11-06
- Certified
- 2023-11-06
Frequently asked questions
- What is Claudia Istrate's NPI number?
- Claudia Istrate's National Provider Identifier (NPI) is 1184135949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudia Istrate's specialty?
- Claudia Istrate is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claudia Istrate located?
- Claudia Istrate's practice location on file with NPPES is 2727 Plaza Dr, Wausau, WI 54401-4129.
- What is Claudia Istrate's phone number?
- The practice phone number listed in the NPPES registry for Claudia Istrate is (715) 847-3000.
- Does Claudia Istrate accept Medicare?
- Claudia Istrate is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claudia Istrate's NPI active?
- Yes — Claudia Istrate's NPI (1184135949) is active in the NPPES registry as of the last update on 2023-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.