Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mark Chaitowitz, MD

Individual provider Hematology & Oncology Physician · NPI 1922215680

Dr. Mark Chaitowitz, MD is a Hematology/Oncology in Bronx, New York. Qualified in 1997, 29 years ago. Practices with Montefiore Medical Center, a 2,796-clinician group and offers telehealth. Licensed in New York.

Years since qualifying
29
Licensed in
NY
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3411 Wayne Ave 1st Fl
Bronx, NY 10467-2509
Phone: (718) 920-4137
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 253878-1 (NY)

Record details

NPI number1922215680
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 16, 2007
Last updated in NPPESApril 14, 2017
Mailing address3411 Wayne Ave, 1st Floor, Bronx, NY 10467-2509

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Montefiore Medical Center — 2796 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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