DOUGLAS MARK IKELHEIMER MD
NPI 1508979519
Psychiatry & Neurology - Psychiatry in Denver, CO
About Douglas Mark Ikelheimer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DOUGLAS MARK IKELHEIMER MD (NPI 1508979519) is an individual psychiatry provider in Denver, Colorado, licensed in Virginia (0101259575) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains 6 additional practice locations, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 6
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Douglas Mark Ikelheimer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
25Medicare enrollment records show Douglas Ikelheimer reassigns Medicare billing to 25 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hardin, MT 59034
- Reassigned Medicare billing, Montana enrollment
- Medicare enrollment name: Scl Health Montana
- 186 clinicians in this Medicare group
Sidney, MT 59270
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1285719161 (Montana)
- 149 clinicians in this Medicare group
Quincy, IL 62301
- Reassigned Medicare billing, Illinois enrollment
- 363 clinicians in this Medicare group
Clarkston, WA 99403
- Reassigned Medicare billing, Washington enrollment
- 139 clinicians in this Medicare group
Sterling, IL 61081
- Reassigned Medicare billing, Illinois enrollment
- 356 clinicians in this Medicare group
Monroe, WI 53566
- Reassigned Medicare billing, Wisconsin enrollment
- 376 clinicians in this Medicare group
Compton, CA 90220
- Reassigned Medicare billing, California enrollment
- 554 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 1,001 clinicians in this Medicare group
Sammamish, WA 98074
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: King County Public Hospital District No 2
- 1,074 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DENVER, CO 80204
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Douglas Ikelheimer's NPI number?
The NPI number for Douglas Ikelheimer is 1508979519. It was assigned to this individual provider in the NPPES registry on August 16, 2006.
Where is Douglas Ikelheimer located?
Douglas Ikelheimer practices at 777 Bannock St Mc 7782, Denver, CO 80204. The listed phone number is (303) 436-6000.
What is Douglas Ikelheimer's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Douglas Ikelheimer enrolled in Medicare?
Yes. Douglas Ikelheimer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Douglas Ikelheimer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Ikelheimer reassigns Medicare benefits to 25 organizations: St Vincent Healthcare (Hardin, MT), Sidney Health Center (Sidney, MT), Blessing Hospital (Quincy, IL), Tri-State Memorial Hospital (Clarkston, WA), Cgh Medical Center (Sterling, IL) and 20 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Douglas Ikelheimer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Douglas Ikelheimer accept?
Health plans from AmeriHealth Caritas Next, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of NC, CareSource and Cigna HealthCare of Florida, Inc. and 7 other insurers list Douglas Ikelheimer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Douglas Ikelheimer was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Douglas Mark Ikelheimer, MD · NPI 1508979519
Psychiatry physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since August 16, 2006.
## Identity
- **NPI:** 1508979519 (Entity type: Individual)
- **Enumerated:** August 16, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 0101259575 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 777 BANNOCK ST, MC 7782, Denver, CO 80204-4507
- **Phone:** (303) 436-6000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 25 organizations under Medicare reassignment (form CMS-855R): St Vincent Healthcare (NPI 1043266109, Hardin, MT); Sidney Health Center (NPI 1568532802, Sidney, MT); Blessing Hospital (NPI 1114471737, Quincy, IL); Tri-State Memorial Hospital (NPI 1598814352, Clarkston, WA); Cgh Medical Center (NPI 1902854623, Sterling, IL); and 20 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** September 24, 2026
- **Other identifiers:** Medicaid 05722730 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1508979519) · Data from the CMS NPPES public registry.