BASEM ABDEEN MD
NPI 1366545675
Hospitalist in Houston, TX
About Basem Abdeen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BASEM ABDEEN MD (NPI 1366545675) is an individual hospitalist provider in Houston, Texas, licensed in Texas (T9614) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Chi St Luke's Health Baylor College Of Medicine Me, and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses 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
Basem Abdeen 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
8Medicare enrollment records show Basem Abdeen reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77025
- Reassigned Medicare billing, Texas enrollment
- 1,649 clinicians in this Medicare group
Festus, MO 63028
- Reassigned Medicare billing, Missouri enrollment
- 299 clinicians in this Medicare group
Washington, MO 63090
- Reassigned Medicare billing, Missouri enrollment
- 261 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 93 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: St Anthonys Physician Organization Hospitalist Services Lc
- 340 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 326 clinicians in this Medicare group
Lima, OH 45804
- Reassigned Medicare billing, Missouri enrollment
- 57 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 6
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.
Chi St Luke's Health Baylor College Of Medicine Me
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 9
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 Basem Abdeen's NPI number?
The NPI number for Basem Abdeen is 1366545675. It was assigned to this individual provider in the NPPES registry on September 6, 2006.
Where is Basem Abdeen located?
Basem Abdeen practices at 6624 Fannin St Fl 19, Houston, TX 77030. The listed phone number is (713) 442-0000.
What is Basem Abdeen's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Basem Abdeen enrolled in Medicare?
Yes. Basem Abdeen 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 Basem Abdeen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Basem Abdeen reassigns Medicare benefits to 8 organizations: Kelsey-Seybold Medical Group, PLLC (Houston, TX), Mercy Clinic Adult Hospitalists- Jefferson, LLC (Festus, MO), Mercy Clinic Adult Hospitalists - Washington, LLC (Washington, MO), Cogent Healthcare Of Missouri, Inc (Fenton, MO), Galen Inpatient Physicians PC. (Fenton, MO) and 3 more organizations, listed in the Medicare section above. 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 Basem Abdeen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Basem Abdeen affiliated with any hospitals?
According to CMS data, Basem Abdeen is affiliated with Chi St Luke's Health Baylor College Of Medicine Me.
When was this NPI record last updated?
The NPPES record for Basem Abdeen was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Basem Abdeen, MD · NPI 1366545675
Hospitalist physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since September 6, 2006.
## Identity
- **NPI:** 1366545675 (Entity type: Individual)
- **Enumerated:** September 6, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** T9614 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6624 FANNIN ST FL 19, Houston, TX 77030-2312
- **Phone:** (713) 442-0000
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Kelsey-Seybold Medical Group, PLLC (NPI 1013915255, Houston, TX); Mercy Clinic Adult Hospitalists- Jefferson, LLC (NPI 1083052492, Festus, MO); Mercy Clinic Adult Hospitalists - Washington, LLC (NPI 1891943429, Washington, MO); Cogent Healthcare Of Missouri, Inc (NPI 1780961599, Fenton, MO); Galen Inpatient Physicians PC. (NPI 1538714688, Fenton, MO); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** February 19, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366545675) · Data from the CMS NPPES public registry.