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

Alan Jay Margolis, M.D.

Specialist in Lone Tree, CO · enumerated 2007.

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

National Provider Identifier

1275739864

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Registry record

Entity type Individual (Type 1)

Name Alan Jay Margolis

Credential M.D.

Sex Male

Practice address Lone Tree, CO, 80124

Phone (303) 797-1150

Fax (303) 797-1150

Enumeration date Jun 21, 2007

Last updated in NPPES Jan 3, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 30863 (CO) 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
1308634	Medicaid	CO	-

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 Alan Margolis?

The National Provider Identifier (NPI) for Alan Margolis is 1275739864, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alan Margolis practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-03.