Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Diana Brown
Social Worker in New York, NY · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427712991
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Registry record
Entity type Individual (Type 1)
Name Ms. Diana Brown
Sex Female
Practice address Harlem Hospital Center, 506 Lenox Avenue, Suite 6111, Social Work Department, 6th Floor, New York, NY, 10037
Phone (212) 939-3330
Fax (212) 939-4609
Enumeration date Oct 29, 2021
Last updated in NPPES Oct 29, 2021
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1427712991 active?
Yes, as of the latest NPPES snapshot, NPI 1427712991 is active (record last updated 2021-10-29).
How do I verify Diana Brown's NPI record?
Cross-check NPI 1427712991 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Jacob Eyul Student in an Organized Health Care Education/Training Program · Harlem, NY NPI 1538743612 Aaryanna Brown-Martin Student in an Organized Health Care Education/Training Program · New York, NY NPI 1508792946 Ashok Kumar Student in an Organized Health Care Education/Training Program · Manhattan, NY NPI 1528986247
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-29.