Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann Louise Trombly

Social Worker in Princeton, NJ · enumerated 2012.

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

National Provider Identifier

1871854224

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Registry record

Entity type Individual (Type 1)

Name Ann Louise Trombly

Sex Female

Practice address 300 Carnegie Ctr Ste 150, Princeton, NJ, 08540

Phone (609) 807-1582

Fax (609) 874-7105

Enumeration date Jun 1, 2012

Last updated in NPPES Jan 19, 2024

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License C-02959 (MI) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 44SC06179200 (NJ) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801091638 (MI) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers Primary

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

What specialty is Ann Trombly?

Ann Trombly is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Veronica Garnett Registered Dietitian · Princeton, NJ NPI 1407193477 Tiffany Jackson Clinical Social Worker · Princeton, NJ NPI 1639728413 Jennifer Kerr Professional Counselor · Princeton, NJ NPI 1366193617 Dayamed PA General Practice Physician · Princeton, NJ NPI 1942926472 Aspire365 New Jersey LLC Addiction Medicine (Preventive Medicine) Physician · Princeton, NJ NPI 1346958196 Integrative Wellness Nurse Practitioner in Psychiatry LLC Psychiatric/Mental Health Nurse Practitioner · Princeton, NJ NPI 1841014057

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-19.