DENVER THERAPY ONLINE
NPI 1700743788
Counselor - Professional in Littleton, CO
About Denver Therapy Online NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENVER THERAPY ONLINE (NPI 1700743788) is a healthcare organization registered as a professional in Littleton, Colorado and active in the NPI registry since January 2026. The organization lists Winnie Siwa, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Denver Therapy Online is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Denver Therapy Online, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Denver Therapy Online's NPI number?
The NPI number for Denver Therapy Online is 1700743788. It was assigned to this organization in the NPPES registry on January 9, 2026.
Where is Denver Therapy Online located?
Denver Therapy Online is located at 9878 W Belleview Ave Pmb 5118, Littleton, CO 80123. The listed phone number is (720) 880-9043.
What is Denver Therapy Online's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Denver Therapy Online enrolled in Medicare?
Yes. Denver Therapy Online is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Denver Therapy Online?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Mental Health Counselor) reassigns their Medicare billing to Denver Therapy Online. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Denver Therapy Online was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Denver Therapy Online · NPI 1700743788
Professional organization in Littleton, Colorado. Organization record, active in the CMS NPPES registry since January 9, 2026.
## Identity
- **NPI:** 1700743788 (Entity type: Organization)
- **Enumerated:** January 9, 2026
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **Organization subpart:** No
- **Authorized official:** Winnie Siwa, OWNER
## Practice location
- **Address:** 9878 W BELLEVIEW AVE, PMB 5118, Littleton, CO 80123-2101
- **Phone:** (720) 880-9043
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Mental Health Counselor) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1700743788) · Data from the CMS NPPES public registry.