GREGORY H REAMAN MD
NPI 1619056777
Pediatrics - Pediatric Hematology-Oncology in Washington, DC
About Gregory H Reaman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY H REAMAN MD (NPI 1619056777) is an individual pediatric hematology-oncology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD11372) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gregory H Reaman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregory Reaman 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.
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 Gregory Reaman's NPI number?
The NPI number for Gregory Reaman is 1619056777. It was assigned to this individual provider in the NPPES registry on November 2, 2006.
Where is Gregory Reaman located?
Gregory Reaman practices at 111 Michigan Ave NW, Washington, DC 20010. The listed phone number is (202) 884-2140.
What is Gregory Reaman's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Gregory Reaman enrolled in Medicare?
Yes. Gregory Reaman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregory Reaman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Reaman 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 Gregory Reaman'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 Gregory Reaman was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.