Krystyna Ostrowski
NPI 1619455607 · Family Nurse Practitioner · Bowler, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Krystyna Ostrowski is a Family Nurse Practitioner provider in Bowler, WI (NPI 1619455607).
Provider details
- NPI number
- 1619455607
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 8541-33 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 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
550 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 116 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 85 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 54 | $102 |
| Hemoglobin A1c Level83036 | 45 | $10 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 43 | $8 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 43 |
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 |
|---|---|---|
| Lisinopril | 67 | 18 |
| Levothyroxine Sodium | 63 | 19 |
| Atorvastatin Calcium | 61 | 21 |
| Dulaglutidebrand: Trulicity | 59 | — |
| Omeprazole | 46 | 14 |
| Losartan Potassium | 42 | 14 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$148 across 2 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
- 2018-08-01
- Last updated
- 2018-10-05
Frequently asked questions
- What is Krystyna Ostrowski's NPI number?
- Krystyna Ostrowski's National Provider Identifier (NPI) is 1619455607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Krystyna Ostrowski's specialty?
- Krystyna Ostrowski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Krystyna Ostrowski located?
- Krystyna Ostrowski's practice location on file with NPPES is W12802 County Road a, Bowler, WI 54416-9551.
- What is Krystyna Ostrowski's phone number?
- The practice phone number listed in the NPPES registry for Krystyna Ostrowski is (715) 793-4144.
- Does Krystyna Ostrowski accept Medicare?
- Krystyna Ostrowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Krystyna Ostrowski's NPI active?
- Yes — Krystyna Ostrowski's NPI (1619455607) is active in the NPPES registry as of the last update on 2018-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.