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PATRICIA SITNITSKY PC
NPI 1265121669
Internal Medicine in Los Altos, CA

Active since May 02, 2023CLIA 05D2328050 · Waiver
827 ALTOS OAKS DR STE 4, LOS ALTOS, CA 94024(408) 495-5770(650) 912-1129 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 9, 2025, Jul 15, 2023, May 12, 2023 and 1 more (4 updates tracked since 2023).

About Patricia Sitnitsky Pc NPPES

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

PATRICIA SITNITSKY PC (NPI 1265121669), doing business as Avita Md, is a healthcare organization registered as an internal medicine in Los Altos, California and active in the NPI registry since May 2023. The organization holds a CLIA Waiver certificate valid through August 3, 2027, maintains a secondary practice location in Mountain View, and lists Patricia Sitnitsky, Chief Executive Officer, as its authorized official.

NPPES Registry Identity

NPI1265121669
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NamePATRICIA SITNITSKY PC
Location Address827 ALTOS OAKS DR STE 4Los Altos, CA 94024-5490
Mailing Address827 Altos Oaks Dr Ste 4Los Altos, CA 94024-5490 · (408) 495-5770 · Fax (650) 912-1129
Phone(408) 495-5770
Fax(650) 912-1129
Organization SubpartNo
Authorized OfficialPatricia SitnitskyChief Executive Officer · (408) 495-5770
Enumeration DateMay 2, 2023
Last NPPES UpdateApril 9, 20254 updates tracked since enumeration
NPPES CertifiedApril 9, 2025
✔ NPI 1265121669 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedDietitian, RegisteredTaxonomy 133V00000X
Also ListedInternal Medicine · Obesity MedicineTaxonomy 207RB0002X
Also ListedPhysician AssistantTaxonomy 363A00000X
827 ALTOS OAKS DR STE 4, Los Altos, CA 94024
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Other Names 1

Doing Business AsAvita Md

Secondary Practice Location 1

Location 1525 South Dr Ste 211Mountain View, CA 94040-4211 · Phone (408) 495-5770 · Fax (650) 912-1129

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Patricia Sitnitsky Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Patricia Sitnitsky PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Patricia Sitnitsky, M.D.
Internal Medicine
NPI 1790896231
827 ALTOS OAKS DR STE 4
Los Altos, CA 94024
(408) 495-5770
✔ PECOS✔ Accepts MedicareSame address
Fariha Ashraf, MD
Internal Medicine
NPI 1427518281
525 SOUTH DR STE 211
Mountain View, CA 94040
(408) 495-5770
✔ PECOS✔ Accepts Medicare0.7 mi
Deborah Salom, DO
Family Practice
NPI 1619947454
15100 LOS GATOS BLVD STE 4
Los Gatos, CA 95032
(408) 495-5770
✔ PECOS✔ Accepts Medicare11 mi
Pardeep Taunk, MD
Internal Medicine
NPI 1336643477
15100 LOS GATOS BLVD STE 4
Los Gatos, CA 95032
(408) 495-5770
✔ PECOS✔ Accepts Medicare11 mi
Jyotsna Vincent, MD
Internal Medicine
NPI 1427316835
15100 LOS GATOS BLVD STE 4
Los Gatos, CA 95032
(408) 495-5770
✔ PECOS✔ Accepts Medicare11 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2328050

Patricia Sitnitsky PC Dba Avita MD · Los Gatos, CA
Active · expires Aug 3, 2027
CLIA Number05D2328050
Laboratory TypePhysician Office
Certificate Effective DateAugust 4, 2025
Certificate Expiration DateAugust 3, 2027
Laboratory DirectorPatricia Sitnitsky
Laboratory Phone(408) 495-5770
Laboratory LocationPatricia Sitnitsky PC Dba Avita MD15100 Los Gatos Blvd, Ste 4, Los Gatos, CA 95032
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Patricia Sitnitsky PC's NPI number?

The NPI number for Patricia Sitnitsky PC is 1265121669. It was assigned to this organization in the NPPES registry on May 2, 2023. The provider is doing business as Avita MD.

Where is Patricia Sitnitsky PC located?

Patricia Sitnitsky PC is located at 827 Altos Oaks Dr Ste 4, Los Altos, CA 94024. The listed phone number is (408) 495-5770.

What is Patricia Sitnitsky PC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Patricia Sitnitsky PC enrolled in Medicare?

Yes. Patricia Sitnitsky PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Patricia Sitnitsky PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Patricia Sitnitsky PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (4) and Family Practice (1). Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Patricia Sitnitsky PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2328050) is associated with this NPI, valid through August 3, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Patricia Sitnitsky PC was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.