DR. COLLEEN MICHELLE WALLACE MCKAY M.D.
NPI 1255627469
Pediatrics in Washington, DC
About Dr. Colleen Michelle Wallace Mckay M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. COLLEEN MICHELLE WALLACE MCKAY M.D. (NPI 1255627469) is an individual pediatrics provider in Washington, District Of Columbia, licensed in District Of Columbia (MD500003331) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and is a graduate of Howard University College Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Colleen Michelle Wallace Mckay M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Colleen Wallace Mckay reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20060
- Reassigned Medicare billing, District of Columbia enrollment
- 319 clinicians in this Medicare group
Glen Burnie, MD 21061
- Reassigned Medicare billing, Maryland enrollment
- 966 clinicians in this Medicare group
Glen Burnie, MD 21061
- Reassigned Medicare billing, Maryland enrollment
- 79 clinicians in this Medicare group
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Baltimore Medical System, Inc.
- 243 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 20060 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.
WASHINGTON, DC 20060
WASHINGTON, DC 20060
WASHINGTON, DC 20060
WASHINGTON, DC 20060
WASHINGTON, DC 20060
WASHINGTON, DC 20060
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 Colleen Wallace Mckay's NPI number?
The NPI number for Colleen Wallace Mckay is 1255627469. It was assigned to this individual provider in the NPPES registry on June 26, 2011. The provider is also known as Dr. Colleen Wallace M.D..
Where is Colleen Wallace Mckay located?
Colleen Wallace Mckay practices at 2041 Georgia Ave NW, Washington, DC 20060. The listed phone number is (202) 865-6100.
What is Colleen Wallace Mckay's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Colleen Wallace Mckay enrolled in Medicare?
Yes. Colleen Wallace Mckay is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Colleen Wallace Mckay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colleen Wallace Mckay reassigns Medicare benefits to 4 organizations: Howard University (Washington, DC), University Of Maryland Community Medical Group, Inc. (Glen Burnie, MD), Baltimore Washington Emergency Physicians, Inc. (Glen Burnie, MD) and Baltimore Medical Systems, Inc. (Baltimore, MD). 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 Colleen Wallace Mckay'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 Colleen Wallace Mckay was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Colleen Michelle Wallace Mckay, M.D. · NPI 1255627469
Pediatrics physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since June 26, 2011.
## Identity
- **NPI:** 1255627469 (Entity type: Individual)
- **Enumerated:** June 26, 2011
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** MD500003331 (District of Columbia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2041 GEORGIA AVE NW, Washington, DC 20060-0002
- **Phone:** (202) 865-6100
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Howard University (NPI 1033163597, Washington, DC); University Of Maryland Community Medical Group, Inc. (NPI 1295367894, Glen Burnie, MD); Baltimore Washington Emergency Physicians, Inc. (NPI 1215983853, Glen Burnie, MD); Baltimore Medical Systems, Inc. (NPI 1164138152, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Howard University College Of Medicine, class of 2011
## Record status
- **NPPES last updated:** May 7, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1255627469) · Data from the CMS NPPES public registry.