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Mark E. Maertins

Emergency Medicine Physician in Lone Tree, CO · enumerated 2006.

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

National Provider Identifier

1295786838

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Registry record

Entity type Individual (Type 1)
Name Mark E. Maertins
Sex Male
Practice address 10101 Ridgegate Parkway, Lone Tree, CO, 80124
Phone (720) 225-1900
Fax (303) 306-7753
Enumeration date May 15, 2006
Last updated in NPPES Jul 31, 2015

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License G57624 (CA) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DR.0028837 (CO) Primary

Other identifiers

Identifier Type State Issuer
930067332 Other CO RAILROAD MEDICARE
00G576240 Medicaid CA -
01288372 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.

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Frequently asked questions

How do I verify Mark Maertins's NPI record?
Cross-check NPI 1295786838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1295786838 active?
Yes, as of the latest NPPES snapshot, NPI 1295786838 is active (record last updated 2015-07-31).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-31.