MEDHAT HANNALLAH
NPI 1366440174
Anesthesiology in Washington, DC
About Medhat Hannallah NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEDHAT HANNALLAH (NPI 1366440174) is an individual anesthesiology provider in Washington, District Of Columbia, licensed in District Of Columbia (15937) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1975).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Medhat Hannallah 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
2Medicare enrollment records show Medhat Hannallah reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 482 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 7
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.
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.
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
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 Medhat Hannallah's NPI number?
The NPI number for Medhat Hannallah is 1366440174. It was assigned to this individual provider in the NPPES registry on July 14, 2005.
Where is Medhat Hannallah located?
Medhat Hannallah practices at 3800 Reservoir Rd NW, Washington, DC 20007. The listed phone number is (202) 444-8640.
What is Medhat Hannallah's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Medhat Hannallah enrolled in Medicare?
Yes. Medhat Hannallah 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 Medhat Hannallah's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Medhat Hannallah reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Washington, DC) and Medstar Medical Group Anesthesiology LLC (Washington, DC). 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 Medhat Hannallah'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 Medhat Hannallah was last updated on March 7, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Medhat Hannallah · NPI 1366440174
Anesthesiology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since July 14, 2005.
## Identity
- **NPI:** 1366440174 (Entity type: Individual)
- **Enumerated:** July 14, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 15937 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3800 RESERVOIR RD NW, Washington, DC 20007-2113
- **Phone:** (202) 444-8640
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1205562816, Washington, DC); Medstar Medical Group Anesthesiology LLC (NPI 1558976175, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1975
## Record status
- **NPPES last updated:** March 7, 2012
- **Other identifiers:** Medicare UPIN E41506; Medicare PIN 000V07G65
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Source: [NPI Profile](https://npiprofile.com/npi/1366440174) · Data from the CMS NPPES public registry.