NPPES file of Aug 9, 2026

Karen A. Ostrowski, N.P.

Adult Health Nurse Practitioner · Palm Beach Gardens, FL

Karen A. Ostrowski, N.P. is an adult health nurse practitioner with a practice address in Palm Beach Gardens, Florida, and NPI 1558447649, issued on Oct 31, 2006. Check the license (Florida RN2629082, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558447649
Name
Karen A. Ostrowski
Credential
N.P.
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
RN2629082 FL
Self-reported in NPPES; status is on the state search
Practice location
10335 N Military Trl, Palm Beach Gardens, FL 33410
Phone
(561) 622-6976
Enumerated
Oct 31, 2006
Record last updated
Sep 30, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(561) 622-3057
Medicare enrollment
Enrolled (PECOS I20080228000202); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest adult health nurse practitioner records → All 3,214 in Florida → Look up another NPI →

Also registered at 10335 N Military Trl

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jerome Spunberg, M.D.Radiation Oncology Physician1902803356

Verify Karen A. Ostrowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license RN2629082    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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75% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

322 Medicare Part D claims for 181 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Karen Ostrowski322
  2. Specialty average1,280

Most prescribed

  1. Ketoconazole45 claims
  2. Triamcinolone Acetonide41 claims
  3. Clobetasol Propionate34 claims
  4. Hydrocortisone26 claims
  5. Doxycycline Hyclate19 claims
  6. Fluorouracil17 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $425.62

18 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Ostrowski$425.62
  2. Specialty average$946.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dermatology Associates OF The Palm Beaches PLLCPalm Beach Gardens, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Karen A. Ostrowski among 3,214 adult health nurse practitioner records in Florida

Karen A. Ostrowski, N.P. is one of 3,214 adult health nurse practitioner records with a practice address in Florida. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 83% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 49% of these records are
  • Graduated1997 · median 2016 among the 1,584 with a school on file
  • Record last updated2010 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Florida

There are 3,214 adult health nurse practitioner records in Florida.

All 3,214 in Florida → Every provider in Palm Beach Gardens → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Valerie Benvenuto, ARNPPalm Beach Gardens, FL 334101538396320
  2. Shashi Bhandari-Gadson, ARNPRiviera Beach, FL 334101568565448
  3. Tina Brady, AGPCNP-CPalm Beach Gardens, FL 334101386361996
  4. Deidra Brown-Brinson, APRNWest Palm Beach, FL 334101124024203
  5. Olga Fernandez, AGPC-NPPalm Beach Gardens, FL 334101831869338
  6. Rebecca Gerety, APRN (AGACNP-BC)Palm Beach Gardens, FL 334101033783220
  7. Kristin Hennings, ARNPPalm Beach Gardens, FL 334101245538974
  8. Bonnie Mackey, NP,PHDPalm Beach Gardens, FL 334101154634723

Common questions

What is Karen A. Ostrowski, N.P.'s NPI number?

Karen A. Ostrowski, N.P.'s National Provider Identifier (NPI) is 1558447649, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen A. Ostrowski, N.P. located?

The NPPES record lists a practice address at 10335 N Military Trl, Palm Beach Gardens, FL, 33410. Phone: (561) 622-6976. Providers update this record themselves, so call before visiting.

How can I verify Karen A. Ostrowski, N.P.'s license?

NPPES lists Florida license number RN2629082, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Karen A. Ostrowski, N.P. prescribe under Medicare Part D?

In 2024, Karen A. Ostrowski, N.P. had 322 Medicare Part D claims for 181 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.