MOLLY E.W. THIESSEN MD
NPI 1487866570
Emergency Medicine in Denver, CO
About Molly E.w. Thiessen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOLLY E.W. THIESSEN MD (NPI 1487866570) is an individual emergency medicine provider in Denver, Colorado, licensed in Colorado (DR.0046574) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2005).
NPPES Registry Identity
Specialties & Licenses 2
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
Molly E.w. Thiessen Md 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 Molly Thiessen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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.
Areas of Expertise CMS Part B claims 2
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 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Molly Thiessen's NPI number?
The NPI number for Molly Thiessen is 1487866570. It was assigned to this individual provider in the NPPES registry on May 3, 2007. The provider is also known as Molly E Welch MD.
Where is Molly Thiessen located?
Molly Thiessen practices at 777 Bannock St, Denver, CO 80204. The listed phone number is (303) 436-4949.
What is Molly Thiessen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Molly Thiessen enrolled in Medicare?
Yes. Molly Thiessen 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 Molly Thiessen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Molly Thiessen 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 Molly Thiessen'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 Molly Thiessen was last updated on December 17, 2024. 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.
# Molly E.w. Thiessen, MD · NPI 1487866570
Emergency Medicine physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since May 3, 2007.
## Identity
- **NPI:** 1487866570 (Entity type: Individual)
- **Enumerated:** May 3, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** DR.0046574 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 777 BANNOCK ST, Denver, CO 80204-4597
- **Phone:** (303) 436-4949 · **Fax:** (303) 602-5184
## 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:** Denver Health And Hospital Authority (NPI 1477569838, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 2005
## Record status
- **NPPES last updated:** December 17, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1487866570) · Data from the CMS NPPES public registry.