Iwona Dziewa D.O.
About this NPIWhat this record shows.
NPI 1083091789 is registered to Iwona Dziewa D.O., a Allergy & Immunology Physician practising at 3680 Hill Blvd in Jefferson Valley, New York. Allergy & Immunology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Iwona Dziewa D.O. has been enumerated in the National Provider Identifier (NPI) registry since 2015.
Your brand here.
Medicare enrollment
This provider holds 2 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20210820002048Allergy/ImmunologyPA
- I20221220001755Allergy/ImmunologyNY
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Iwona Dziewa D.O. accepts. To confirm in-network status with your specific health plan, contact Iwona Dziewa D.O. directly at (914) 245-7700.
Frequently asked
Yes. NPI 1083091789 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Allergy & Immunology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (914) 245-7700.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Iwona Dziewa D.O. is a Type-1 individual NPI.