1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Physician Assistant
  6. NPI Profile

ROBERT J O'BRIEN III PA-C
NPI 1245654797
Physician Assistant in New York, NY

Active since February 04, 2014
523 E 72ND ST FL 2, NEW YORK, NY 10021(212) 606-1844(212) 746-8744 Get Directions Write a Review

NPPES record last updated: November 7, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 7, 2024, Apr 20, 2021, Apr 13, 2021 (3 updates tracked since 2021).

About Robert J O'brien Iii Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT J O'BRIEN III PA-C (NPI 1245654797) is an individual physician assistant in New York, New York, licensed in New York (019211) and active in the NPI registry since February 2014. He maintains 4 additional practice locations.

NPPES Registry Identity

NPI1245654797
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameROBERT J O'BRIEN IIICredential: PA-C
Location Address523 E 72ND ST FL 2New York, NY 10021-4099
Mailing Address535 E 70th StNew York, NY 10021-4823 · (212) 606-1844 · Fax (212) 746-8744
Phone(212) 606-1844
Fax(212) 746-8744
Sole ProprietorNo
Enumeration DateFebruary 4, 2014
Last NPPES UpdateNovember 7, 20243 updates tracked since enumeration
NPPES CertifiedNovember 7, 2024
✔ NPI 1245654797 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in NY · 019211✔ Licensed in NJ · 25MP00329700
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
523 E 72ND ST FL 2, New York, NY 10021
Open in Google Maps ↗

Secondary Practice Locations 4

Location 1140 E Ridgewood Ave Ste 175SParamus, NJ 07652-3917 · Phone (212) 606-1844 · Fax (212) 746-8744
Location 2535 E 70th StNew York, NY 10021-4823 · Phone (212) 606-1844 · Fax (212) 746-8744
Location 3400 Franklin Tpke Ste 200Mahwah, NJ 07430-3518 · Phone (212) 606-1844 · Fax (212) 746-8744
Location 415 E Midland Ave Ste 1AParamus, NJ 07652-2926 · Phone (212) 606-1844 · Fax (212) 746-8744

Other Identifiers 1

Medicaid04318796NY

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TONY CHEN PA
Physician Assistant
523 E 72ND ST FL 2
NEW YORK, NY 10021
New York County (212) 606-1844
DIFELICE ORTHOPAEDICS PC
Orthopaedic Surgery
523 E 72ND ST FL 2
NEW YORK, NY 10021
New York County (212) 606-1844
KARA MICHELLE HIMELFARB MSN, NP, AGACNP-BC
Nurse Practitioner (Acute Care)
523 E 72ND ST FL 2
NEW YORK, NY 10021
New York County (703) 786-9350

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert O'brien's NPI number?

The NPI number for Robert O'brien is 1245654797. It was assigned to this individual provider in the NPPES registry on February 4, 2014.

Where is Robert O'brien located?

Robert O'brien practices at 523 E 72nd St Fl 2, New York, NY 10021. The listed phone number is (212) 606-1844.

What is Robert O'brien's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Robert O'brien was last updated on November 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.