Nicholas Dariusz Chajec, DO
Emergency Medicine Physician · Brandon, FL
Nicholas Dariusz Chajec, DO is an emergency medicine physician with a practice address in Brandon, Florida, and NPI 1528700507, issued on Apr 11, 2022. Check the license (Florida OS22134, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Nicholas Dariusz Chajec
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OS22134 FL
Self-reported in NPPES; status is on the state search - Practice location
- 119 Oakfield Dr, Brandon, FL 33511
- Phone
- (813) 997-2308
- Enumerated
- Apr 11, 2022
- Record last updated
- May 21, 2025
- Medicare enrollment
- Enrolled (PECOS I20250514000793); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,034 in Florida → Look up another NPI →
Also registered at 119 Oakfield Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Moayad Abualhaija, M.D.Student in an Organized Health Care Education/Training Program1699519173
- Jorge Acosta, M.D.Anesthesiology Physician1730164377
- Diana Aibar, AAAnesthesiologist Assistant1730438235
- Olivia Akker, MDStudent in an Organized Health Care Education/Training Program1891323242
- Fatima Alam, MBBSStudent in an Organized Health Care Education/Training Program1477354504
- Omar Alchatti, MDStudent in an Organized Health Care Education/Training Program1215875463
Verify Nicholas Dariusz Chajec in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS22134Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average emergency medicine physician in 2024
50 Medicare Part D claims for 37 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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: $193.64
1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Emergency Medicine Services OF FL LLCBrandon, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Dariusz Chajec among 4,034 emergency medicine physician records in Florida
Nicholas Dariusz Chajec, DO is one of 4,034 emergency medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2022 · median 2013 among the 2,199 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 emergency medicine physician records list a practice address in Brandon
They are 63 of the 3,634 NPPES records with a practice address in Brandon, and 4,034 emergency medicine physician records in Florida.
All 4,034 in Florida → Every provider in Brandon → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Timothy Balling, M.D.Brandon, FL 335111902861966
- Matthew Carman, M.D.Brandon, FL 335111013117779
- Warren Crooks, M.D.Brandon, FL 335111841235579
- William Davison, M.D.Brandon, FL 335111962427237
- Carlie Finan, M.D.Brandon, FL 335111275614257
- Marifel Juarbe, MDBrandon, FL 335111083668198
- Roentgen Lee, D.O.Brandon, FL 335111245267871
- Ingrid Legall, MDBrandon, FL 335111679525513
Common questions
What is Nicholas Dariusz Chajec, DO's NPI number?
Nicholas Dariusz Chajec, DO's National Provider Identifier (NPI) is 1528700507, issued on Apr 11, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Dariusz Chajec, DO located?
The NPPES record lists a practice address at 119 Oakfield Dr, Brandon, FL, 33511. Phone: (813) 997-2308. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Dariusz Chajec, DO's license?
NPPES lists Florida license number OS22134, 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 Nicholas Dariusz Chajec, DO prescribe under Medicare Part D?
In 2024, Nicholas Dariusz Chajec, DO had 50 Medicare Part D claims for 37 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.
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.