Dariusz J. Nasiek, M.D.
Anesthesiology Physician · Passaic, NJ
Dariusz J. Nasiek, M.D. is an anesthesiology physician with a practice address in Passaic, New Jersey, and NPI 1285636852, issued on Aug 12, 2005. Check the license (New Jersey 25MA06262500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Dariusz J. Nasiek
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 25MA06262500 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 350 Boulevard, Passaic, NJ 07055
- Phone
- (973) 365-4300
- Enumerated
- Aug 12, 2005
- Record last updated
- Jul 13, 2026
- Medicaid ID
- 0040932 NJ
- Medicare enrollment
- Enrolled (PECOS I20040813000049); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,714 in New Jersey → Look up another NPI →
Also registered at 350 Boulevard
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronald Aboody, MDSpecialist1235109976
- Arvin Adler, D.O.Radiation Oncology Physician1265430433
- Mildred Agres, MDAnesthesiology Physician1598795577
- Mina Aknouk, MDInternal Medicine Physician1073133013
- Kershina Alexander, MDStudent in an Organized Health Care Education/Training Program1427997691
- Maxine Amadi, MDStudent in an Organized Health Care Education/Training Program1952240368
Verify Dariusz J. Nasiek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA06262500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average anesthesiology physician in 2024
142 Medicare Part D claims for 39 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Tramadol Hcl20 claims
- Cyclobenzaprine Hcl19 claims
- Ibuprofen14 claims
- Naproxen13 claims
- Alprazolam11 claims
- Gabapentin11 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: $22.36
1 payment: food and beverage; the largest payer was Saluda Medical Americas, Inc. The 17,774 providers of this specialty with any payment received $669.59 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
- Anesthesiology And Pain Professional Practice LLCEnglewood, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dariusz J. Nasiek among 1,714 anesthesiology physician records in New Jersey
Dariusz J. Nasiek, M.D. is one of 1,714 anesthesiology physician records with a practice address in New Jersey. 76% 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, 84% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1989 · median 2002 among the 1,178 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 anesthesiology physician records list a practice address in Passaic
They are 25 of the 665 NPPES records with a practice address in Passaic, and 1,714 anesthesiology physician records in New Jersey.
All 1,714 in New Jersey → Every provider in Passaic → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Gurmeet Chhabra, M.D.Passaic, NJ 070551861486292
- Carlos Frias, M.D.Passaic, NJ 070551235132440
- Benjamin George, M.D.,Passaic, NJ 070551396702593
- Kevin Jones, MDPassaic, NJ 070551851365217
- Christo Klele, M.D.Passaic, NJ 070551992708184
- Christos Koutentis, MDPassaic, NJ 070551952379265
- Janet Odondi, MDPassaic, NJ 070551730164302
- Young Park, M.D.Passaic, NJ 070551982645453
Common questions
What is Dariusz J. Nasiek, M.D.'s NPI number?
Dariusz J. Nasiek, M.D.'s National Provider Identifier (NPI) is 1285636852, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Dariusz J. Nasiek, M.D. located?
The NPPES record lists a practice address at 350 Boulevard, Passaic, NJ, 07055. Phone: (973) 365-4300. Providers update this record themselves, so call before visiting.
How can I verify Dariusz J. Nasiek, M.D.'s license?
NPPES lists New Jersey license number 25MA06262500, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dariusz J. Nasiek, M.D. prescribe under Medicare Part D?
In 2024, Dariusz J. Nasiek, M.D. had 142 Medicare Part D claims for 39 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.