Quick answers
- Where does John T. Maher see patients?
- Medicare's clinician data lists 2 practice locations, including Brooklyn, NY. Call before your visit to confirm the address.
- What is John T. Maher's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does John T. Maher accept Medicare assignment?
- Yes. Medicare's clinician data says John T. Maher accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John T. Maher?
- (718) 852-5810, as listed in official Medicare / NPI Registry data.
- What is John T. Maher's NPI number?
- 1437238581. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John T. Maher is enrolled with Medicare (CMS data updated 2026-10-02).
- 110 4th AveBrooklyn, NY 11217 (718) 852‑5810
- 506 6th StBrooklyn, NY 11215 (718) 780‑3000
Group practices
Medicare enrollment lists John T. Maher as a member of this group (CMS data updated 2026-10-02).
- Kings Physician Services PC648 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437238581 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians