SERGIU COSTINAS MD
NPI 1831659648
Emergency Medicine in Annapolis, MD
About Sergiu Costinas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SERGIU COSTINAS MD (NPI 1831659648) is an individual emergency medicine provider in Annapolis, Maryland, licensed in Maryland (D0093419) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Luminis Health Anne Arundel Medical Center, Inc, and maintains a secondary practice location in Newark.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Sergiu Costinas Md 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
3Medicare enrollment records show Sergiu Costinas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Annapolis, MD 21401
- Reassigned Medicare billing, Maryland enrollment
- 60 clinicians in this Medicare group
Elkton, MD 21921
- Reassigned Medicare billing, Maryland and Delaware enrollments
- Also billed through NPI 1639956451 (Delaware)
- 135 clinicians in this Medicare group
Newark, DE 19718
- Reassigned Medicare billing, Delaware enrollment
- Medicare enrollment name: Christiana Care Health Services Inc
- 1,531 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 3
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.
Luminis Health Anne Arundel Medical Center, Inc
Acute Care Hospitals · Annapolis, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21401 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.
ANNAPOLIS, MD 21401
ANNAPOLIS, MD 21401
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 Sergiu Costinas's NPI number?
The NPI number for Sergiu Costinas is 1831659648. It was assigned to this individual provider in the NPPES registry on March 20, 2019.
Where is Sergiu Costinas located?
Sergiu Costinas practices at 2001 Medical Pkwy, Annapolis, MD 21401. The listed phone number is (443) 481-1000.
What is Sergiu Costinas's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Sergiu Costinas enrolled in Medicare?
Yes. Sergiu Costinas 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 Sergiu Costinas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sergiu Costinas reassigns Medicare benefits to 3 organizations: Doctors Emergency Service, PA (Annapolis, MD), Christiana Care Emergency Physicians LLC (Elkton, MD) and Christiana Care Health System (Newark, DE). 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 Sergiu Costinas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sergiu Costinas affiliated with any hospitals?
According to CMS data, Sergiu Costinas is affiliated with Luminis Health Anne Arundel Medical Center, Inc.
When was this NPI record last updated?
The NPPES record for Sergiu Costinas was last updated on July 6, 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.
# Sergiu Costinas, MD · NPI 1831659648
Emergency Medicine physician in Annapolis, Maryland. Individual provider, active in the CMS NPPES registry since March 20, 2019.
## Identity
- **NPI:** 1831659648 (Entity type: Individual)
- **Enumerated:** March 20, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D0093419 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 2001 MEDICAL PKWY, Annapolis, MD 21401-3773
- **Phone:** (443) 481-1000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Doctors Emergency Service, PA (NPI 1528171840, Annapolis, MD); Christiana Care Emergency Physicians LLC (NPI 1871375899, Elkton, MD); Christiana Care Health System (NPI 1770615494, Newark, DE) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** July 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1831659648) · Data from the CMS NPPES public registry.