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

Mark L Defazio, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1073586343

Mark L Defazio, MD is an Obstetrics/Gynecology in Brooklyn, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 1986, 40 years ago. Practices with De Fazio Obstetrics and Gynecology PC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
40
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2006
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

1301 82nd St
Brooklyn, NY 11228
Phone: (718) 836-3721
Fax: (718) 259-6567
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 178425 (NY)

Record details

NPI number1073586343
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 8, 2006
Last updated in NPPESSeptember 23, 2011

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice De Fazio Obstetrics And Gynecology Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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