Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SYDNEY C THEOBALD LCSW
NPI 1659079127
Social Worker - Clinical in Watertown, NY

Active since February 23, 2023
595 W MAIN ST, WATERTOWN, NY 13601(888) 585-2228 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 3, 2026, Aug 21, 2023, Feb 23, 2023 (3 updates tracked since 2023).

About Sydney C Theobald Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYDNEY C THEOBALD LCSW (NPI 1659079127) is an individual clinical provider in Watertown, New York, licensed in New York (103761) and active in the NPI registry since February 2023.

NPPES Registry Identity

NPI1659079127
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSYDNEY C THEOBALDCredential: LCSW
Location Address595 W MAIN STWatertown, NY 13601-1335
Mailing Address611 W Main StWatertown, NY 13601-1337
Sole ProprietorNo
Enumeration DateFebruary 23, 2023
Last NPPES UpdateSeptember 3, 20263 updates tracked since enumeration
NPPES CertifiedAugust 21, 2023
✔ NPI 1659079127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · 103761
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedSocial WorkerTaxonomy 104100000X · License P120209 (NY), 119210 (NY)
595 W MAIN ST, Watertown, NY 13601

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Addiction (Substance Use Disorder))
595 W MAIN ST
WATERTOWN, NY 13601
Marriage & Family Therapist
595 W MAIN ST
WATERTOWN, NY 13601
Licensed Practical Nurse
595 W MAIN ST
WATERTOWN, NY 13601
Social Worker
595 W MAIN ST
WATERTOWN, NY 13601
Counselor (Addiction (Substance Use Disorder))
595 W MAIN ST
WATERTOWN, NY 13601
Registered Nurse
595 W MAIN ST
WATERTOWN, NY 13601
Licensed Practical Nurse
595 W MAIN ST
WATERTOWN, NY 13601
Counselor (Addiction (Substance Use Disorder))
595 W MAIN ST
WATERTOWN, NY 13601

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 Sydney Theobald's NPI number?

The NPI number for Sydney Theobald is 1659079127. It was assigned to this individual provider in the NPPES registry on February 23, 2023.

Where is Sydney Theobald located?

Sydney Theobald practices at 595 W Main St, Watertown, NY 13601. The listed phone number is (888) 585-2228.

What is Sydney Theobald's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Sydney Theobald was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days 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.