DR. ERIN SUE MARCUM M.D.
NPI 1932361706
Hospitalist in Westminster, CO
About Dr. Erin Sue Marcum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ERIN SUE MARCUM M.D. (NPI 1932361706) is an individual hospitalist provider in Westminster, Colorado, licensed in Colorado (DR.0050223) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Dr. Erin Sue Marcum M.d. 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 Reassignment
Medicare enrollment records show Erin Marcum reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80023 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.
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 Erin Marcum's NPI number?
The NPI number for Erin Marcum is 1932361706. It was assigned to this individual provider in the NPPES registry on July 1, 2008.
Where is Erin Marcum located?
Erin Marcum practices at 14300 Orchard Pkwy, Westminster, CO 80023. The listed phone number is (303) 338-4545.
What is Erin Marcum's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Erin Marcum enrolled in Medicare?
Yes. Erin Marcum 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 organization bills Medicare for Erin Marcum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Marcum reassigns Medicare benefits to Colorado Permanente Medical Group, P.C. (Denver, CO). The 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 Erin Marcum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Erin Marcum was last updated on December 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Dr. Erin Sue Marcum, M.D. · NPI 1932361706
Hospitalist physician in Westminster, Colorado. Individual provider, active in the CMS NPPES registry since July 1, 2008.
## Identity
- **NPI:** 1932361706 (Entity type: Individual)
- **Enumerated:** July 1, 2008
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** DR.0050223 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 14300 ORCHARD PKWY, Westminster, CO 80023-9206
- **Phone:** (303) 338-4545
## 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:** Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** December 12, 2025
- **Other identifiers:** Other 029007 (CO); Medicaid 01056379 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1932361706) · Data from the CMS NPPES public registry.