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One Oak Medical Group, LLC

Obstetrics & Gynecology Physician in Montclair, NJ · enumerated 2020 · authorized official Faisal Mahmood, MD/Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1366055303

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Registry record

Entity type Organization (Type 2)
Legal business name One Oak Medical Group, LLC
Practice address 109 Valley Rd, Montclair, NJ, 07042
Phone (973) 870-0777
Enumeration date Aug 28, 2020
Last updated in NPPES Feb 26, 2021

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Faisal Mahmood
Title MD/Owner
Phone (973) 870-0777

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for One Oak Medical Group, LLC?
NPPES lists Faisal Mahmood (MD/Owner) as the authorized official for this organization.
What is the NPI number for One Oak Medical Group, LLC?
The NPI for One Oak Medical Group, LLC is 1366055303, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-26.