DoctorsProofNPPES directory · verify at state boards

Hematology & Oncology in Concord, MA

3 verified hematology & oncology doctors in Concord.

Hematologist-oncologists treat blood disorders and cancers, coordinating chemotherapy and blood-related care.

NPPES tenure ≠ clinical experience. "Years on NPPES" is time since the physician first registered a National Provider Identifier, not time practicing medicine. Verify current license status with the state medical board.

Verify a license at the Massachusetts Board of Registration in Medicine

Dr. Jon Dubois, MD

Hematology & Oncology

21 yrs NPPES
NPI 1922080241
131 ORNAC, JOHN CUMMING BLDG #200, Concord, MA 01742(978) 287-3436
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Ewa Niemierko, MD

Hematology & Oncology

21 yrs NPPES
NPI 1447233549
131 ORNAC, JOHN CUMMING BLDG #200, Concord, MA 01742(978) 287-3436
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Susan Sajer, MD

Hematology & Oncology

21 yrs NPPES
NPI 1154304251
131 ORNAC, JOHN CUMMING BLDG #200, Concord, MA 01742(978) 287-3436
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Hematology & Oncology in Concord, MA — Verified | DoctorsProof | DoctorsProof