MISS ANNETTE C SIEMENS FNP
NPI 1477643872
Nurse Practitioner in Denver, CO
About Miss Annette C Siemens Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MISS ANNETTE C SIEMENS FNP (NPI 1477643872) is an individual nurse practitioner in Denver, Colorado, licensed in Alaska (197) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
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
Miss Annette C Siemens Fnp 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
2Medicare enrollment records show Annette Siemens reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80204
- Reassigned Medicare billing, Texas enrollment
- 13 clinicians in this Medicare group
Anchorage, AK 99518
- Reassigned Medicare billing, Texas enrollment
- 32 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 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 Annette Siemens's NPI number?
The NPI number for Annette Siemens is 1477643872. It was assigned to this individual provider in the NPPES registry on October 14, 2006.
Where is Annette Siemens located?
Annette Siemens practices at 2880 W Holden Pl, Denver, CO 80204. The listed phone number is (303) 953-6600.
What is Annette Siemens's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Annette Siemens enrolled in Medicare?
Yes. Annette Siemens 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 Annette Siemens's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Annette Siemens reassigns Medicare benefits to 2 organizations: Denver Indian Health And Family Services Inc. (Denver, CO) and Aleutian Pribilof Islands Association, Inc. (Anchorage, AK). 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 Annette Siemens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Annette Siemens accept?
Health plans from Select Health and UnitedHealthcare list Annette Siemens 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 Annette Siemens was last updated on September 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.