DR. MARISSA LESLIE M.D.
NPI 1417039975
Psychiatry & Neurology - Child & Adolescent Psychiatry in Rockville, MD
About Dr. Marissa Leslie M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARISSA LESLIE M.D. (NPI 1417039975) is an individual child & adolescent psychiatry provider in Rockville, Maryland, licensed in Pennsylvania (MD426645) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 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. Marissa Leslie M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marissa Leslie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gaithersburg, MD 20878
- Reassigned Medicare billing, District of Columbia enrollment
- 340 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCKVILLE, MD 20850
ROCKVILLE, MD 20850
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 Marissa Leslie's NPI number?
The NPI number for Marissa Leslie is 1417039975. It was assigned to this individual provider in the NPPES registry on October 20, 2006. The provider is also known as Marissa Leslie MD.
Where is Marissa Leslie located?
Marissa Leslie practices at 14915 Broschart Rd Suite 2100, Rockville, MD 20850. The listed phone number is (301) 838-4912.
What is Marissa Leslie's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Marissa Leslie enrolled in Medicare?
Yes. Marissa Leslie is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marissa Leslie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Leslie reassigns Medicare benefits to Adventist Physician Services, Inc. (Gaithersburg, MD). 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 Marissa Leslie'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 Marissa Leslie was last updated on April 11, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.