MERISSA IDA ARMANDE WEISS M.D.
NPI 1306265277
Emergency Medicine in Baltimore, MD
About Merissa Ida Armande Weiss M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERISSA IDA ARMANDE WEISS M.D. (NPI 1306265277) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D91467) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with University Of Md Capital Region Medical Center, and is a graduate of University Of South Florida College Of Medicine (2014).
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 and accepts Medicare assignment
Merissa Ida Armande Weiss M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Merissa Weiss reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21212
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 309 clinicians in this Medicare group
Randallstown, MD 21133
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
- Also billed through NPI 1831940881 (District of Columbia)
- 729 clinicians in this Medicare group
Bel Air, MD 21014
- Reassigned Medicare billing, Maryland enrollment
- 130 clinicians in this Medicare group
Chestertown, MD 21620
- Reassigned Medicare billing, Maryland enrollment
- 172 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of MD Capital Region Medical Center
Acute Care Hospitals · Upper Marlboro, MDPhysician 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Merissa Weiss's NPI number?
The NPI number for Merissa Weiss is 1306265277. It was assigned to this individual provider in the NPPES registry on April 8, 2014. The provider is also known as Merissa Ida Armande Ortiz.
Where is Merissa Weiss located?
Merissa Weiss practices at 250 W Pratt St Ste 1320, Baltimore, MD 21201. The listed phone number is (410) 802-4481.
What is Merissa Weiss's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Merissa Weiss enrolled in Medicare?
Yes. Merissa Weiss is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Merissa Weiss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Merissa Weiss reassigns Medicare benefits to 4 organizations: Medstar Urgent Care LLC (Baltimore, MD), Emergency Medicine Associates PA PC (Randallstown, MD), Upper Chesapeake Emergency Medicine Physicians, LLC (Bel Air, MD) and Chester River Hospital Center (Chestertown, MD). 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 Merissa Weiss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Merissa Weiss affiliated with any hospitals?
According to CMS data, Merissa Weiss is affiliated with University Of MD Capital Region Medical Center.
When was this NPI record last updated?
The NPPES record for Merissa Weiss was last updated on December 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Merissa Ida Armande Weiss, M.D. · NPI 1306265277
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since April 8, 2014.
## Identity
- **NPI:** 1306265277 (Entity type: Individual)
- **Enumerated:** April 8, 2014
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D91467 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 250 W PRATT ST STE 1320, Baltimore, MD 21201-2411
- **Phone:** (410) 802-4481
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Medstar Urgent Care LLC (NPI 1942623319, Baltimore, MD); Emergency Medicine Associates PA PC (NPI 1043175375, Randallstown, MD); Upper Chesapeake Emergency Medicine Physicians, LLC (NPI 1285854026, Bel Air, MD); Chester River Hospital Center (NPI 1053491795, Chestertown, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 2014
## Record status
- **NPPES last updated:** December 20, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1306265277) · Data from the CMS NPPES public registry.