David J. Kosiorek, PA C
Physician Assistant · Port Richey, FL
David J. Kosiorek, PA C is a physician assistant with a practice address in Port Richey, Florida, and NPI 1083604144, issued on Oct 28, 2005. Check the license (Florida PA9101567, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- David J. Kosiorek
- Credential
- PA C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA9101567 FL
Self-reported in NPPES; status is on the state search - Practice location
- 8220 US 19 North, Port Richey, FL 34668
- Phone
- (727) 841-8505
- Enumerated
- Oct 28, 2005
- Record last updated
- Aug 29, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (727) 846-0561
- Medicare enrollment
- Enrolled (PECOS I20100108000228); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,257 in Florida → Look up another NPI →
Also registered at 8220 US 19 North
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jaimie Bryan, PA CDermatology Physician1710959697
- Karen Rosochowicz, MPH PACPhysician Assistant1245374677
- Jason Swerdloff, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1255367371
- Cynthia Weston, ARNPDermatology Physician1063684991
Verify David J. Kosiorek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license PA9101567Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average physician assistant in 2024
517 Medicare Part D claims for 301 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Betamethasone Valerate126 claims
- Doxycycline Hyclate113 claims
- Ciclopirox43 claims
- Fluocinonide42 claims
- Mupirocin39 claims
- Clobetasol Propionate30 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $100.39
6 payments; by number, the most common kind was food and beverage; the largest payer was ConvaTec Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Lumen Dermatology LLCOcala, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David J. Kosiorek among 10,257 physician assistant records in Florida
David J. Kosiorek, PA C is one of 10,257 physician assistant records with a practice address in Florida. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1998 · median 2018 among the 5,867 with a school on file
- Record last updated2011 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 physician assistant records list a practice address in Port Richey
They are 5 of the 396 NPPES records with a practice address in Port Richey, and 10,257 physician assistant records in Florida.
All 10,257 in Florida → Every provider in Port Richey → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kameron FaulkenberryPort Richey, FL 346681477353019
- Neko Gude, PAPort Richey, FL 346681003420308
- Karen Rosochowicz, MPH PACPort Richey, FL 346681245374677
- Cayla Rummens, PA-CPort Richey, FL 346681952013187
- Marc Alessandroni, PA-CHudson, FL 346691508819897
- Kevin BassHudson, FL 346671831587849
- Rebekah BelkinHudson, FL 346671730049453
- Erika Brazis, PAHudson, FL 346691578032009
Common questions
What is David J. Kosiorek, PA C's NPI number?
David J. Kosiorek, PA C's National Provider Identifier (NPI) is 1083604144, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David J. Kosiorek, PA C located?
The NPPES record lists a practice address at 8220 US 19 North, Port Richey, FL, 34668. Phone: (727) 841-8505. Providers update this record themselves, so call before visiting.
How can I verify David J. Kosiorek, PA C's license?
NPPES lists Florida license number PA9101567, 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 David J. Kosiorek, PA C prescribe under Medicare Part D?
In 2024, David J. Kosiorek, PA C had 517 Medicare Part D claims for 301 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is David J. Kosiorek, PA C's MIPS final score?
The 2023 MIPS final score is 88.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.