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

Dr. John Thomas Maher, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1437238581

Dr. John Thomas Maher, MD is an Obstetrics/Gynecology in Brooklyn, New York. Graduated from Rutgers New Jersey Medical School in 1989, 37 years ago. Accepts Medicare assignment. Licensed in New York.

Years since qualifying
37
Trained at
Rutgers New Jersey Medical School
Licensed in
NY
In the registry since
2006
Specialties on file
2
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

110 4th Ave # Levelc
Brooklyn, NY 11217-2787
Phone: (712) 238-4535
Fax: (718) 921-3448
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 184820 (NY)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 184820 (NY)

Record details

NPI number1437238581
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESMarch 19, 2024
Certification dateOctober 3, 2023

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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