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

Alan R Spivack, MD

Internal Medicine Physician in Chesterfield, MO · enumerated 2005.

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

National Provider Identifier

1962491712

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Registry record

Entity type Individual (Type 1)

Name Alan R Spivack

Credential MD

Sex Male

Practice address Chesterfield, MO, 63017

Phone (314) 275-2211

Enumeration date Oct 14, 2005

Last updated in NPPES Nov 20, 2007

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 29603 (MO) Primary

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
1962491712	Other	MO	RAILROAD MEDICARE NPI

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 Alan Spivack's NPI record?

Cross-check NPI 1962491712 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1962491712 active?

Yes, as of the latest NPPES snapshot, NPI 1962491712 is active (record last updated 2007-11-20).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-20.