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Patricia Sitnitsky PC

Internal Medicine Physician in Los Altos, CA · enumerated 2023 · authorized official Patricia Sitnitsky, Chief Executive Officer.

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

National Provider Identifier

1265121669

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Registry record

Entity type Organization (Type 2)
Legal business name Patricia Sitnitsky PC
Other name <Unavail>
Practice address 827 Altos Oaks Dr Ste 4, Los Altos, CA, 94024
Phone (408) 495-5770
Fax (650) 912-1129
Enumeration date May 2, 2023
Last updated in NPPES Apr 9, 2025

Taxonomy & classification

133V00000X Registered Dietitian Dietary & Nutritional Service Providers Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary
207RB0002X Obesity Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Patricia Sitnitsky
Title Chief Executive Officer
Phone (408) 495-5770

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

Who is the authorized official for Patricia Sitnitsky PC?
NPPES lists Patricia Sitnitsky (Chief Executive Officer) as the authorized official for this organization.
What is the NPI number for Patricia Sitnitsky PC?
The NPI for Patricia Sitnitsky PC is 1265121669, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-09.