NPI Portal NPI Lookup & Verification

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

Sahar E. Lashin, M.D.

Internal Medicine Physician in Lake Forest, CA · enumerated 2011.

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

National Provider Identifier

1598053894

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Registry record

Entity type Individual (Type 1)
Name Sahar E. Lashin
Credential M.D.
Sex Female
Practice address Lake Forest, CA, 92630
Phone (949) 749-1049
Fax (949) 749-1048
Enumeration date Jul 20, 2011
Last updated in NPPES Jan 16, 2026

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 A127149 (CA) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301099457 (MI) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

What is the NPI number for Sahar Lashin?
The National Provider Identifier (NPI) for Sahar Lashin is 1598053894, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sahar Lashin practice?
The practice location on file with NPPES is in Lake Forest, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-16.