ALEXANDRA DREYZIN MD
NPI 1053706416
Pediatrics - Pediatric Hematology-Oncology in Washington, DC
About Alexandra Dreyzin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDRA DREYZIN MD (NPI 1053706416) is an individual pediatric hematology-oncology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD048058) and active in the NPI registry since April 2015. 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)
Alexandra Dreyzin Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alexandra Dreyzin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 clinicians in this Medicare group
Pittsburgh, PA 15243
- Reassigned Medicare billing, Pennsylvania enrollment
- 133 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.
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 Alexandra Dreyzin's NPI number?
The NPI number for Alexandra Dreyzin is 1053706416. It was assigned to this individual provider in the NPPES registry on April 2, 2015.
Where is Alexandra Dreyzin located?
Alexandra Dreyzin practices at 111 Michigan Ave NW, Washington, DC 20010. The listed phone number is (202) 476-5778.
What is Alexandra Dreyzin's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Alexandra Dreyzin enrolled in Medicare?
Yes. Alexandra Dreyzin is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alexandra Dreyzin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Dreyzin reassigns Medicare benefits to 2 organizations: Children's Hospital (Washington, DC) and St Clair Professional Services Inc (Pittsburgh, PA). 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 Alexandra Dreyzin'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 Alexandra Dreyzin was last updated on July 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Alexandra Dreyzin, MD · NPI 1053706416
Pediatric Hematology-Oncology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since April 2, 2015.
## Identity
- **NPI:** 1053706416 (Entity type: Individual)
- **Enumerated:** April 2, 2015
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** MD048058 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 MICHIGAN AVE NW, Washington, DC 20010-2916
- **Phone:** (202) 476-5778
## 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): Children's Hospital (NPI 1780800128, Washington, DC); St Clair Professional Services Inc (NPI 1326712050, Pittsburgh, PA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1053706416) · Data from the CMS NPPES public registry.