Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Bruce Ion Greenstein, D.M.D.

General Practice Dentistry in Denver, CO · enumerated 2006 · practices at Bruce I.Greenstein Dmd PC.

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

National Provider Identifier

1619047487

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Registry record

Entity type Individual (Type 1)

Name Dr. Bruce Ion Greenstein

Credential D.M.D.

Sex Male

Practice address 162 Adams St, Suite 200, Denver, CO, 80206

Phone (303) 333-4209

Fax (303) 333-0095

Enumeration date Nov 9, 2006

Last updated in NPPES Mar 9, 2016

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 105190 (CO) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
84-1075859	Other	CO	TAX ID

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

Is NPI 1619047487 active?

Yes, as of the latest NPPES snapshot, NPI 1619047487 is active (record last updated 2016-03-09).

How do I verify Bruce Greenstein's NPI record?

Cross-check NPI 1619047487 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Bruce I.Greenstein Dmd PC Dentist · Denver, CO NPI 1467810002

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-09.