Ewa Niemierko M.D.
About this NPIWhat this record shows.
NPI 1447233549 is registered to Ewa Niemierko M.D., a Hematology & Oncology practising at 131 Ornac, John Cumming Bldg #200 in Concord, Massachusetts. Hematology & Oncology is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ewa Niemierko M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- J22840MA· Issued by BLUE CROSS BLUE SHIELD
- 14512MA· Issued by HARVARD PILGRIM
- 2554249MA· Issued by AETNA US HEALTH
- B20992701MA· Issued by CIGNA
- 408304MA· Issued by TUFTS HEALTH CARE
Medicaid
- 0121746MA
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment 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
- I20100928001285Hematology/OncologyMA
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 Ewa Niemierko M.D. accepts. To confirm in-network status with your specific health plan, contact Ewa Niemierko M.D. directly at (978) 287-3436.
Frequently asked
Yes. NPI 1447233549 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hematology & Oncology 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 (978) 287-3436.
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. Ewa Niemierko M.D. is a Type-1 individual NPI.