Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Krystyna De Jacq, NP

Psychiatric/Mental Health Nurse Practitioner in Mamaroneck, NY · enumerated 2009 · practices at Mamaroneck Np in Psychiatry Pllc.

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

National Provider Identifier

1568790152

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Registry record

Entity type Individual (Type 1)

Name Krystyna De Jacq

Credential NP

Sex Female

Practice address 709 Palmer Ct Apt 2e, Mamaroneck, NY, 10543

Phone (917) 513-0273

Enumeration date Nov 20, 2009

Last updated in NPPES Apr 13, 2023

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 401238 (NY) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 401238 (NY) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Krystyna De Jacq?

Krystyna De Jacq is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. 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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Mamaroneck Np in Psychiatry Pllc Adult Mental Health Clinic/Center · Mamaroneck, NY NPI 1376362590

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-13.