MARWA LEITH ALI MD
NPI 1649858291
Emergency Medicine in Baltimore, MD
About Marwa Leith Ali Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARWA LEITH ALI MD (NPI 1649858291) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D0106723) and active in the NPI registry since April 2021. 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)
Marwa Leith Ali Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marwa Ali reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 234 clinicians in this Medicare group
Newark, NJ 07103
- Reassigned Medicare billing, New Jersey enrollment
- 149 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 21201 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.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Marwa Ali's NPI number?
The NPI number for Marwa Ali is 1649858291. It was assigned to this individual provider in the NPPES registry on April 1, 2021.
Where is Marwa Ali located?
Marwa Ali practices at 110 S Paca St, Baltimore, MD 21201. The listed phone number is (410) 706-3100.
What is Marwa Ali's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Marwa Ali enrolled in Medicare?
Yes. Marwa Ali is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marwa Ali's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marwa Ali reassigns Medicare benefits to 2 organizations: University Of Maryland Emergency Medicine Associates, PA (Baltimore, MD) and University Physician Associates Of New Jersey Inc (Newark, NJ). 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 Marwa Ali'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 Marwa Ali was last updated on July 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Marwa Leith Ali, MD · NPI 1649858291
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since April 1, 2021.
## Identity
- **NPI:** 1649858291 (Entity type: Individual)
- **Enumerated:** April 1, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D0106723 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 110 S PACA ST, Baltimore, MD 21201-1642
- **Phone:** (410) 706-3100
## 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): University Of Maryland Emergency Medicine Associates, PA (NPI 1144271743, Baltimore, MD); University Physician Associates Of New Jersey Inc (NPI 1639189236, Newark, NJ) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649858291) · Data from the CMS NPPES public registry.