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

Lekshmi Vallyathan, MD

Internal Medicine Physician in Merced, CA · enumerated 2007.

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

National Provider Identifier

1487842894

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Registry record

Entity type Individual (Type 1)

Name Lekshmi Vallyathan

Credential MD

Sex Female

Practice address Merced, CA, 95340

Phone (209) 564-3713

Enumeration date Oct 10, 2007

Last updated in NPPES Feb 11, 2022

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 MT191774 (PA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A118521 (CA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Lekshmi Vallyathan?

The National Provider Identifier (NPI) for Lekshmi Vallyathan is 1487842894, a Type 1 (individual) record in the CMS NPPES registry.

Where does Lekshmi Vallyathan practice?

The practice location on file with NPPES is in Merced, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-11.