NPPES file of Aug 9, 2026

Douglas Mark Ikelheimer, MD

Psychiatry Physician · Denver, CO

Douglas Mark Ikelheimer, MD is a psychiatry physician with a practice address in Denver, Colorado, and NPI 1508979519, issued on Aug 16, 2006. Check the license (Colorado 40353, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508979519
Name
Douglas Mark Ikelheimer
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
40353 CO
0101259575 VA
C163816 CA
C1-0011239 DE
036136893 IL
and 2 more
Self-reported in NPPES; status is on the state search
Practice location
777 Bannock St, Denver, CO 80204
Phone
(303) 436-6000
Enumerated
Aug 16, 2006
Record last updated
Nov 14, 2025
Medicaid ID
05722730 CO
Medicare enrollment
Enrolled (PECOS I20181113001982); accepts Medicare assignment
Medical or professional school
State University Of New York At Stony Brook, School Of Medicine, 1997
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 777 Bannock St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eric Aaltonen, M.D.Vascular & Interventional Radiology Physician1538340344
  2. Sarah Abbott, LCSWClinical Social Worker1326519042
  3. Ejaaz Abdulkabir, CNMAdvanced Practice Midwife1710551783
  4. Miren Aboitiz, NP-CWomen's Health Nurse Practitioner1568862282
  5. Edgar Acosta, MSWClinical Social Worker1467900381
  6. Shanie Adaime, RDHDental Hygienist1083318554

Verify Douglas Mark Ikelheimer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 40353
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4 hospitals and group practices

  1. Winchester Medical CenterWinchester, VA · Acute Care Hospitals4 of 5 stars
  2. Cgh Medical CenterSterling, IL · Acute Care Hospitals1 of 5 stars
  3. Bayhealth Medical Center, IncDover, DE
  4. Mcv Associated PhysiciansTappahannock, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Douglas Mark Ikelheimer among 990 psychiatry physician records in Colorado

Douglas Mark Ikelheimer, MD is one of 990 psychiatry physician records with a practice address in Colorado. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 35% of these records are
  • Graduated1997 · median 2009 among the 351 with a school on file
  • Record last updated2025 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

291 psychiatry physician records list a practice address in Denver

They are 291 of the 25,068 NPPES records with a practice address in Denver, and 990 psychiatry physician records in Colorado.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Marla Barnes, MDDenver, CO 802041710997275
  2. James Bartsch, PHDDenver, CO 802041487673166
  3. Elizabeth Cookson, M.D.Denver, CO 802041508866831
  4. Lisa Darton, MDDenver, CO 802041780605691
  5. Justin Hauxwell, MDDenver, CO 802041255542569
  6. Roger Helfrich, MDDenver, CO 802041346353448
  7. John Holland, M.D.Denver, CO 802041821088071
  8. Laura Jacobs, PSYDDenver, CO 802041225042955

Common questions

What is Douglas Mark Ikelheimer, MD's NPI number?

Douglas Mark Ikelheimer, MD's National Provider Identifier (NPI) is 1508979519, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Mark Ikelheimer, MD located?

The NPPES record lists a practice address at 777 Bannock St, Denver, CO, 80204. Phone: (303) 436-6000. Providers update this record themselves, so call before visiting.

How can I verify Douglas Mark Ikelheimer, MD's license?

NPPES lists Colorado license number 40353, 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. Medicare files from data.cms.gov. 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.