Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Catherine Lim Siazon-Leviste, MD

Physical Medicine & Rehabilitation Physician in Middletown, CT · enumerated 2006 · practices at State of Connecticut.

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

National Provider Identifier

1861593873

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Registry record

Entity type Individual (Type 1)

Name Mrs. Catherine Lim Siazon-Leviste

Credential MD

Sex Female

Practice address 1000 Silver Street, Connecticut Valley Hospital, Middletown, CT, 06457

Phone (860) 262-5868

Fax (860) 262-5850

Enumeration date Sep 25, 2006

Last updated in NPPES Sep 18, 2007

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 180603 (NY) 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

Where does Catherine Siazon-Leviste practice?

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

What is the NPI number for Catherine Siazon-Leviste?

The National Provider Identifier (NPI) for Catherine Siazon-Leviste is 1861593873, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-18.