Mark E. Maertins
Emergency Medicine Physician · Lone Tree, CO
Mark E. Maertins is an emergency medicine physician with a practice address in Lone Tree, Colorado, and NPI 1295786838, issued on May 15, 2006. Check the license (Colorado DR.0028837, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark E. Maertins
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- DR.0028837 CO
G57624 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10101 Ridgegate Parkway, Lone Tree, CO 80124
- Phone
- (720) 225-1900
- Enumerated
- May 15, 2006
- Record last updated
- Jul 31, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (303) 306-7753
- Medicaid IDs
- 00G576240 CA
01288372 CO - Entity
- Type 1 · individual
Also registered at 10101 Ridgegate Parkway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gerard AshbeckEmergency Medicine Physician1043293756
- Eric BratzEmergency Medicine Physician1134102759
- Jacqueline FitchPhysician Assistant1477545069
- Matthew GrzegozewskiEmergency Medicine Physician1417163536
- Eric LungEmergency Medicine Physician1144208513
- Christopher McCarthyPhysician Assistant1477670958
Verify Mark E. Maertins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0028837Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Emergency Medicine Physician providers in Colorado
There are 1,434 emergency medicine physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other emergency medicine physician records in Colorado
- Steven AaronsonDenver, CO1326081951
- Lauren AbbateAurora, CO1255624276
- Jean Abbott, MDAurora, CO1578672820
- Kalen AbbottAurora, CO1174899314
- William Abbott, M.D.Aurora, CO1013992361
- Charles Abramson, D.O.Glenwood Springs, CO1932335023
- Alan Adams, MDSalida, CO1912972365
- Bruce Adams, M.D.Denver, CO1407946197
- Sabrina Adams, M.D.Denver, CO1174822373
- Erik Adler, M.D.Denver, CO1699909739
Common questions
What is Mark E. Maertins's NPI number?
Mark E. Maertins's National Provider Identifier (NPI) is 1295786838, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark E. Maertins located?
The NPPES record lists a practice address at 10101 Ridgegate Parkway, Lone Tree, CO, 80124. Phone: (720) 225-1900. Providers update this record themselves, so call before visiting.
How can I verify Mark E. Maertins's license?
NPPES lists Colorado license number DR.0028837, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.