MARY MARGARET RYAN MD
NPI 1114677481
Emergency Medicine in Denver, CO
About Mary Margaret Ryan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY MARGARET RYAN MD (NPI 1114677481) is an individual emergency medicine provider in Denver, Colorado, licensed in Colorado (DR.0075372) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mary Margaret Ryan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mary Ryan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brush, CO 80723
- Reassigned Medicare billing, Colorado enrollment
- 31 clinicians in this Medicare group
La Grande, OR 97850
- Reassigned Medicare billing, Oregon enrollment
- 158 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
DENVER, CO 80204
DENVER, CO 80204
DENVER, CO 80204
DENVER, CO 80204
DENVER, CO 80204
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 Mary Ryan's NPI number?
The NPI number for Mary Ryan is 1114677481. It was assigned to this individual provider in the NPPES registry on March 28, 2022.
Where is Mary Ryan located?
Mary Ryan practices at 777 Bannock St # Mc0108, Denver, CO 80204. The listed phone number is (303) 602-5193.
What is Mary Ryan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mary Ryan enrolled in Medicare?
Yes. Mary Ryan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mary Ryan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ryan reassigns Medicare benefits to 2 organizations: East Morgan County Hospital (Brush, CO) and Grande Ronde Hospital, Inc. (La Grande, OR). 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 Mary Ryan'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 Mary Ryan was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Mary Margaret Ryan, MD · NPI 1114677481
Emergency Medicine physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since March 28, 2022.
## Identity
- **NPI:** 1114677481 (Entity type: Individual)
- **Enumerated:** March 28, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** DR.0075372 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 777 BANNOCK ST # MC0108, Denver, CO 80204-4507
- **Phone:** (303) 602-5193
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): East Morgan County Hospital (NPI 1699708743, Brush, CO); Grande Ronde Hospital, Inc. (NPI 1467446195, La Grande, OR) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1114677481) · Data from the CMS NPPES public registry.