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

Harold N Klestzick, DO

Individual provider Cardiovascular Disease Physician · NPI 1871665976

Harold N Klestzick, DO is a Cardiovascular Disease (Cardiology) in Bronx, New York. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 1990, 36 years ago. Practices with Montefiore Medical Center, a 2,796-clinician group. Licensed in New York.

Years since qualifying
36
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
NY
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2475 Saint Raymonds Ave
Bronx, NY 10461-3124
Phone: (718) 239-5877
Fax: (718) 239-6957
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 195483 (NY)

Record details

NPI number1871665976
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedNovember 14, 2006
Last updated in NPPESJanuary 28, 2010

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 1990 (36 years in practice)
Group practice Montefiore Medical Center — 2796 clinicians
Accepts Medicare assignment Not indicated

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