MERWISE BARAY
NPI 1548899479
Internal Medicine - Critical Care Medicine in Clinton, MD
About Merwise Baray NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERWISE BARAY (NPI 1548899479) is an individual critical care medicine provider in Clinton, Maryland, licensed in Maryland (D0107051) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Medstar Southern Maryland Hospital Center, and is a graduate of University Of Virginia School Of Medicine (2020).
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 and accepts Medicare assignment
Merwise Baray 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 Reassignment
Medicare enrollment records show Merwise Baray reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20036
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Southern Maryland Hospital Center
Acute Care Hospitals · Clinton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20735 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.
CLINTON, MD 20735
CLINTON, MD 20735
CLINTON, MD 20735
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 Merwise Baray's NPI number?
The NPI number for Merwise Baray is 1548899479. It was assigned to this individual provider in the NPPES registry on April 3, 2020.
Where is Merwise Baray located?
Merwise Baray practices at 7503 Surratts Rd, Clinton, MD 20735. The listed phone number is (301) 868-8000.
What is Merwise Baray's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Merwise Baray enrolled in Medicare?
Yes. Merwise Baray 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 organization bills Medicare for Merwise Baray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Merwise Baray reassigns Medicare benefits to Medstar Medical Group II LLC (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 Merwise Baray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Merwise Baray affiliated with any hospitals?
According to CMS data, Merwise Baray is affiliated with Medstar Southern Maryland Hospital Center.
When was this NPI record last updated?
The NPPES record for Merwise Baray was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Merwise Baray · NPI 1548899479
Critical Care Medicine physician in Clinton, Maryland. Individual provider, active in the CMS NPPES registry since April 3, 2020.
## Identity
- **NPI:** 1548899479 (Entity type: Individual)
- **Enumerated:** April 3, 2020
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** D0107051 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 7503 SURRATTS RD, Clinton, MD 20735-3358
- **Phone:** (301) 868-8000 · **Fax:** (877) 303-1460
## 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:** Medstar Medical Group II LLC (NPI 1376887844, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Virginia School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** June 9, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1548899479) · Data from the CMS NPPES public registry.