Karen Ostrowski, N.P.
NPI 1558447649 · Adult Health Nurse Practitioner · Palm Beach Gardens, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Ostrowski, N.P. is a Adult Health Nurse Practitioner provider in Palm Beach Gardens, FL (NPI 1558447649).
Provider details
- NPI number
- 1558447649
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- RN2629082 (FL)
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
19 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
1,533 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 680 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 333 | $78 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 212 | $50 |
| Biopsy of Related Skin Growth, First Growth11102 | 120 | $83 |
| Destruction of Cancer Skin Growth of Trunk, Arms, Or Legs, 1.1-2.0 Cm17262 | 55 | $128 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 45 | 32 |
| Triamcinolone Acetonide | 41 | 34 |
| Clobetasol Propionate | 34 | 25 |
| Hydrocortisone | 26 | 20 |
| Doxycycline Hyclate | 19 | 17 |
| Fluorouracil | 17 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$426 across 18 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
- 2006-10-31
- Last updated
- 2010-09-30
Frequently asked questions
- What is Karen Ostrowski's NPI number?
- Karen Ostrowski's National Provider Identifier (NPI) is 1558447649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Ostrowski's specialty?
- Karen Ostrowski is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Ostrowski located?
- Karen Ostrowski's practice location on file with NPPES is 10335 N Military Trl, Palm Beach Gardens, FL 33410-4634.
- What is Karen Ostrowski's phone number?
- The practice phone number listed in the NPPES registry for Karen Ostrowski is (561) 622-6976.
- Does Karen Ostrowski accept Medicare?
- Karen Ostrowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Ostrowski's NPI active?
- Yes — Karen Ostrowski's NPI (1558447649) is active in the NPPES registry as of the last update on 2010-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.