NPPES file of Aug 9, 2026

Mark Dilger, M.D

Psychiatry Physician · Denver, CO

Mark Dilger, M.D is a psychiatry physician with a practice address in Denver, Colorado, and NPI 1679745087, issued on Mar 25, 2008. Check the license (Colorado 34348, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1679745087
Name
Mark Dilger
Credential
M.D
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
34348 CO
Self-reported in NPPES; status is on the state search
Practice location
4610 S Ulster St, Denver, CO 80237
Phone
(303) 400-1015
Enumerated
Mar 25, 2008
Record last updated
Mar 25, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
01343482 CO
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4610 S Ulster St

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

  1. William Hale, M.B.A., CST-CFASurgical Assistant1508180381

Verify Mark Dilger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 34348
    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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Mark Dilger among 990 psychiatry physician records in Colorado

Mark Dilger, M.D 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 not. Its NPI, issued in 2008, is newer than 58% of them.

  • NPI issued2008 · 58% of these records are older, 37% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 35% of these records are
  • Record last updated2008 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Kirk Anderson, MDDenver, CO 802371205050143
  2. Natalie Hogan, MDDenver, CO 802371598779506
  3. Scott Humphreys, MDDenver, CO 802371447264593
  4. Therese Marumoto, M.D.Denver, CO 802371952381220
  5. Joel Miller, M.D.Denver, CO 802371295947547
  6. Minh Nguyen, DODenver, CO 802371720575566
  7. Alfred Richter, MDDenver, CO 802371023009081
  8. Clifford Zeller, M.D.Denver, CO 802371962580001

Common questions

What is Mark Dilger, M.D's NPI number?

Mark Dilger, M.D's National Provider Identifier (NPI) is 1679745087, issued on Mar 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mark Dilger, M.D located?

The NPPES record lists a practice address at 4610 S Ulster St, Denver, CO, 80237. Phone: (303) 400-1015. Providers update this record themselves, so call before visiting.

How can I verify Mark Dilger, M.D's license?

NPPES lists Colorado license number 34348, 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.