Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Yshay Shlesinger, M.D.

Internal Medicine Physician in San Ramon, CA · enumerated 2006.

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

National Provider Identifier

1881799922

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Yshay Shlesinger

Credential M.D.

Sex Male

Practice address San Ramon, CA, 94583

Phone (925) 552-5284

Enumeration date Sep 13, 2006

Last updated in NPPES Sep 2, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A65724 (CA) Primary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License A 65724 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
A65724	Other	CA	MEDICAL LICENSE

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

How do I verify Yshay Shlesinger's NPI record?

Cross-check NPI 1881799922 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881799922 active?

Yes, as of the latest NPPES snapshot, NPI 1881799922 is active (record last updated 2016-09-02).

Other providers at this practice address

Browse all →

Mike Wu General Practice Dentistry · San Ramon, CA NPI 1790850204 Charles Montgomery Psychiatry Physician · San Ramon, CA NPI 1689730772 Cheri Dang Dental Anesthesiology · San Ramon, CA NPI 1740404110 Adult & Pediatric Gastroenterology Medical Center Gastroenterology Physician · San Ramon, CA NPI 1538367818 Yshay Shlesinger, M.D., A Professional Corporation Internal Medicine Physician · San Ramon, CA NPI 1770763419 Kenneth Lum Dentist · San Ramon, CA NPI 1558506725 Nilofar Parvin Dentist · San Ramon, CA NPI 1013225143 Steve Kim General Practice Dentistry · San Ramon, CA NPI 1013210426

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-02.