Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Laurence Perlstein

Internal Medicine Physician in Florissant, MO · enumerated 2006.

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

National Provider Identifier

1407967474

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Laurence Perlstein

Sex Male

Practice address 1225 Graham Rd, Ste 2320c, Florissant, MO, 63031

Phone (314) 831-6883

Fax (314) 831-3716

Enumeration date Aug 31, 2006

Last updated in NPPES Nov 8, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License R2G11 (MO) Primary

Other identifiers

Identifier	Type	State	Issuer
208099713	Medicaid	MO	-

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 Laurence Perlstein?

The National Provider Identifier (NPI) for Laurence Perlstein is 1407967474, a Type 1 (individual) record in the CMS NPPES registry.

Where does Laurence Perlstein practice?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-08.