MS. MARGARET TERESA VIEWEG
NPI 1689017527
Counselor - Professional in Denver, CO

Active since April 10, 2013PECOS Enrolled
777 BANNOCK ST, DENVER, CO 80204(303) 436-6388(303) 602-4560 Get Directions Write a Review

NPPES record last updated: January 7, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 7, 2025, Sep 7, 2018 (2 updates tracked since 2018).

About Ms. Margaret Teresa Vieweg NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. MARGARET TERESA VIEWEG (NPI 1689017527) is an individual professional provider in Denver, Colorado, licensed in Colorado (LPC.0015401) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS and maintains a secondary practice location in Thornton.

NPPES Registry Identity

NPI1689017527
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameMS. MARGARET TERESA VIEWEG
Location Address777 BANNOCK STDenver, CO 80204-4597
Mailing Address777 Bannock StDenver, CO 80204-4597 · (303) 436-6388 · Fax (303) 602-4560
Fax(303) 602-4560
Sole ProprietorNo
Enumeration DateApril 10, 2013
Last NPPES UpdateJanuary 7, 20252 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2025
✔ NPI 1689017527 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in CO · LPC.0015401
777 BANNOCK ST, Denver, CO 80204

Secondary Practice Location 1

Location 18931 Huron StThornton, CO 80260 · Phone (303) 853-3500

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Margaret Teresa Vieweg is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Margaret Vieweg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

General Practice
777 BANNOCK ST
Denver, CO 80204
  • Reassigned Medicare billing, Colorado enrollment
  • 2,259 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.

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.

Clinical Nurse Specialist (Psychiatric/Mental Health)
777 BANNOCK ST
DENVER, CO 80204
Anesthesiology
777 BANNOCK ST
DENVER, CO 80204
Nurse Practitioner
777 BANNOCK ST
DENVER, CO 80204
Hospitalist
777 BANNOCK ST
DENVER, CO 80204
Social Worker (Clinical)
777 BANNOCK ST
DENVER, CO 80204
Nurse Practitioner
777 BANNOCK ST
DENVER, CO 80204
Physician Assistant
777 BANNOCK ST
DENVER, CO 80204
Family Medicine
777 BANNOCK ST
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 Margaret Vieweg's NPI number?

The NPI number for Margaret Vieweg is 1689017527. It was assigned to this individual provider in the NPPES registry on April 10, 2013.

Where is Margaret Vieweg located?

Margaret Vieweg practices at 777 Bannock St, Denver, CO 80204. The listed phone number is (303) 436-6388.

What is Margaret Vieweg's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Margaret Vieweg enrolled in Medicare?

Yes. Margaret Vieweg is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Margaret Vieweg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Vieweg reassigns Medicare benefits to Denver Health And Hospital Authority (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 Margaret Vieweg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Margaret Vieweg accept?

Health plans from Blue Cross and Blue Shield of Texas, Select Health and UnitedHealthcare list Margaret Vieweg 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 Margaret Vieweg was last updated on January 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.