DR. ALLISON ARDELL MARKOWSKY MD
NPI 1144480906
Pediatrics in Washington, DC
About Dr. Allison Ardell Markowsky Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALLISON ARDELL MARKOWSKY MD (NPI 1144480906) is an individual pediatrics provider in Washington, District Of Columbia, licensed in District Of Columbia (MD039187) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Allison Ardell Markowsky Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Allison Markowsky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 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 20010 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 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
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 Allison Markowsky's NPI number?
The NPI number for Allison Markowsky is 1144480906. It was assigned to this individual provider in the NPPES registry on June 14, 2008.
Where is Allison Markowsky located?
Allison Markowsky practices at 111 Michigan Ave NW Suite 4800, Washington, DC 20010. The listed phone number is (202) 476-3116.
What is Allison Markowsky's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Allison Markowsky enrolled in Medicare?
Yes. Allison Markowsky is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Allison Markowsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Markowsky reassigns Medicare benefits to Children's Hospital (Washington, DC). 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 Allison Markowsky'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 Allison Markowsky was last updated on May 22, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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. Allison Ardell Markowsky, MD · NPI 1144480906
Pediatrics physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since June 14, 2008.
## Identity
- **NPI:** 1144480906 (Entity type: Individual)
- **Enumerated:** June 14, 2008
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** MD039187 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 MICHIGAN AVE NW, SUITE 4800, Washington, DC 20010-2916
- **Phone:** (202) 476-3116
## 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:** Children's Hospital (NPI 1780800128, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 22, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1144480906) · Data from the CMS NPPES public registry.