DR. ALEXANDER CHASSE
NPI 1124682034
Anesthesiology in Washington, DC
About Dr. Alexander Chasse NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER CHASSE (NPI 1124682034) is an individual anesthesiology provider in Washington, District Of Columbia, licensed in District Of Columbia (DO210011748) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of University Of New England, College Of Osteo Medicine (2019).
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
Dr. Alexander Chasse 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 Alexander Chasse reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 482 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Alexandria, VA 22306
- Reassigned Medicare billing, District of Columbia enrollment
- 634 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.
Inova Alexandria Hospital
Acute Care Hospitals · Alexandria, VAOther Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, DC 20010
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 Alexander Chasse's NPI number?
The NPI number for Alexander Chasse is 1124682034. It was assigned to this individual provider in the NPPES registry on April 25, 2019.
Where is Alexander Chasse located?
Alexander Chasse practices at 110 Irving St NW # G-226, Washington, DC 20010. The listed phone number is (202) 877-7500.
What is Alexander Chasse's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Alexander Chasse enrolled in Medicare?
Yes. Alexander Chasse 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 Alexander Chasse's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Chasse reassigns Medicare benefits to 3 organizations: Medstar Medical Group Anesthesiology LLC (Washington, DC), Medstar Medical Group II LLC (Washington, DC) and Northstar Anesthesia Of Virginia, LLC (Alexandria, VA). 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 Alexander Chasse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexander Chasse affiliated with any hospitals?
According to CMS data, Alexander Chasse is affiliated with Inova Alexandria Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Chasse was last updated on July 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Alexander Chasse · NPI 1124682034
Anesthesiology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since April 25, 2019.
## Identity
- **NPI:** 1124682034 (Entity type: Individual)
- **Enumerated:** April 25, 2019
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** DO210011748 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 110 IRVING ST NW # G-226, Washington, DC 20010-3017
- **Phone:** (202) 877-7500
## 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): Medstar Medical Group Anesthesiology LLC (NPI 1558976175, Washington, DC); Medstar Medical Group II LLC (NPI 1023836137, Washington, DC); Northstar Anesthesia Of Virginia, LLC (NPI 1194488791, Alexandria, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2019
## Record status
- **NPPES last updated:** July 12, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1124682034) · Data from the CMS NPPES public registry.