DANIELLE MARIE WILLIAMSON PMHNP-BC
NPI 1821707233
Nurse Practitioner - Psychiatric/Mental Health in Hauppauge, NY
About Danielle Marie Williamson Pmhnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DANIELLE MARIE WILLIAMSON PMHNP-BC (NPI 1821707233) is an individual psychiatric/mental health provider in Hauppauge, New York, licensed in New York (F404327-01) and active in the NPI registry since November 2022.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HAUPPAUGE, NY 11788
HAUPPAUGE, NY 11788
HAUPPAUGE, NY 11788
HAUPPAUGE, NY 11788
HAUPPAUGE, NY 11788
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 Danielle Williamson's NPI number?
The NPI number for Danielle Williamson is 1821707233. It was assigned to this individual provider in the NPPES registry on November 15, 2022. The provider is also known as Ms. Danielle Marie Ciancarelli Pmhnp-Bc.
Where is Danielle Williamson located?
Danielle Williamson practices at 150 Motor Pkwy Ste 401, Hauppauge, NY 11788. The listed phone number is (631) 885-1929.
What is Danielle Williamson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
When was this NPI record last updated?
The NPPES record for Danielle Williamson was last updated on January 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Danielle Marie Williamson, PMHNP-BC · NPI 1821707233
Psychiatric/Mental Health physician in Hauppauge, New York. Individual provider, active in the CMS NPPES registry since November 15, 2022.
## Identity
- **NPI:** 1821707233 (Entity type: Individual)
- **Enumerated:** November 15, 2022
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** F404327-01 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 150 MOTOR PKWY STE 401, Hauppauge, NY 11788-5108
- **Phone:** (631) 885-1929
## Record status
- **NPPES last updated:** January 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821707233) · Data from the CMS NPPES public registry.