EMMELINE SIEBERT
NPI 1720514979
Optometrist in Centennial, CO
About Emmeline Siebert NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMMELINE SIEBERT (NPI 1720514979) is an individual optometrist in Centennial, Colorado, licensed in Colorado (OPT.0003990) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS and is a graduate of University Of California - School Of Optometry (2017).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Emmeline Siebert 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 Emmeline Siebert reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 clinicians in this Medicare group
Dorchester, MA 02125
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Uphams Corner Health Committee Inc
- 55 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 6
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 80122 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.
LITTLETON, CO 80122
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 Emmeline Siebert's NPI number?
The NPI number for Emmeline Siebert is 1720514979. It was assigned to this individual provider in the NPPES registry on May 10, 2017. The provider is also known as Emmeline Cruz.
Where is Emmeline Siebert located?
Emmeline Siebert practices at 5555 E Arapahoe Rd, Centennial, CO 80122. The listed phone number is (303) 338-3800.
What is Emmeline Siebert's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Emmeline Siebert enrolled in Medicare?
Yes. Emmeline Siebert 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 Emmeline Siebert's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emmeline Siebert reassigns Medicare benefits to 2 organizations: Colorado Permanente Medical Group, P.C. (Denver, CO) and Upham's Corner Health Committee, Inc. (Dorchester, MA). 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 Emmeline Siebert'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 Emmeline Siebert was last updated on January 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Emmeline Siebert · NPI 1720514979
Optometrist provider in Centennial, Colorado. Individual provider, active in the CMS NPPES registry since May 10, 2017.
## Identity
- **NPI:** 1720514979 (Entity type: Individual)
- **Enumerated:** May 10, 2017
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OPT.0003990 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 5555 E ARAPAHOE RD, Centennial, CO 80122-2312
- **Phone:** (303) 338-3800
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO); Upham's Corner Health Committee, Inc. (NPI 1780780486, Dorchester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California - School Of Optometry, class of 2017
## Record status
- **NPPES last updated:** January 13, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1720514979) · Data from the CMS NPPES public registry.