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

Mary Brigid Halloran, DO

Individual provider Family Medicine Physician · NPI 1568873701

Mary Brigid Halloran, DO is registered under Family Practice in Brooklyn, New York. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2014, 12 years ago. Practices with Mount Sinai School of Medicine, a 30-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
12
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
NY
In the registry since
2014
Specialties on file
2
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

165 Smith St
Brooklyn, NY 11201-6337
Phone: (888) 663-6331
Fax: (415) 252-7176
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 50 E 168th St # 98, Bronx, NY 10452-7929 — (718) 293-3900
  • 16 E 16th St, New York, NY 10003-3105 — (212) 206-5200
  • 25 Hudson St, New York, NY 10013-3802 — (212) 441-4401

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 288537-1 (NY)
Family Medicine Physician Taxonomy 207Q00000X · Licence 288537 (NY)

Record details

NPI number1568873701
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 9, 2014
Last updated in NPPESMarch 19, 2025
Certification dateMarch 19, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2014 (12 years in practice)
Group practice Mount Sinai School Of Medicine — 30 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Mount Sinai School of Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 30 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn