OSAMA QUASEM
NPI 1437425675
Hospitalist in Cypress, TX
About Osama Quasem NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OSAMA QUASEM (NPI 1437425675) is an individual hospitalist provider in Cypress, Texas, licensed in Texas (R8651) and active in the NPI registry since March 2012. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Marshalltown, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Accepted Insurance
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
Osama Quasem 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
7Medicare enrollment records show Osama Quasem reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fulshear, TX 77441
- Reassigned Medicare billing, Texas enrollment
- 1,235 clinicians in this Medicare group
Lake Charles, LA 70601
- Reassigned Medicare billing, Louisiana enrollment
- 34 clinicians in this Medicare group
Belleville, IL 62226
- Reassigned Medicare billing, Illinois enrollment
- 329 clinicians in this Medicare group
West Des Moines, IA 50266
- Reassigned Medicare billing, Texas enrollment
- 11 clinicians in this Medicare group
Peoria, IL 61603
- Reassigned Medicare billing, Texas enrollment
- 10 clinicians in this Medicare group
Grinnell, IA 50112
- Reassigned Medicare billing, Texas enrollment
- 7 clinicians in this Medicare group
Dubuque, IA 52001
- Reassigned Medicare billing, Texas enrollment
- 10 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 4
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unitypoint Health - Marshalltown
Acute Care Hospitals · Marshalltown, IATrinity Regional Medical Center
Acute Care Hospitals · Fort Dodge, IAAllen Hospital
Acute Care Hospitals · Waterloo, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77433 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 Osama Quasem's NPI number?
The NPI number for Osama Quasem is 1437425675. It was assigned to this individual provider in the NPPES registry on March 30, 2012.
Where is Osama Quasem located?
Osama Quasem practices at 27800 Northwest Fwy Ste 4201, Cypress, TX 77433. The listed phone number is (346) 231-4628.
What is Osama Quasem's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Osama Quasem enrolled in Medicare?
Yes. Osama Quasem 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 Osama Quasem's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Osama Quasem reassigns Medicare benefits to 7 organizations: Memorial Hermann Medical Group (Fulshear, TX), Lc Hospital Medicine Physicians, LLC (Lake Charles, LA), Cep America-Illinois Hospitalists, LLP (Belleville, IL), Iowa Physicians Clinic Medical Foundation (West Des Moines, IA), Methodist Medical Center Of Illinois (Peoria, IL) and 2 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 Osama Quasem's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Osama Quasem accept?
Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Osama Quasem as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Osama Quasem affiliated with any hospitals?
According to CMS data, Osama Quasem is affiliated with Unitypoint Health - Marshalltown, Trinity Regional Medical Center and Allen Hospital.
When was this NPI record last updated?
The NPPES record for Osama Quasem was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.
# Osama Quasem · NPI 1437425675
Hospitalist physician in Cypress, Texas. Individual provider, active in the CMS NPPES registry since March 30, 2012.
## Identity
- **NPI:** 1437425675 (Entity type: Individual)
- **Enumerated:** March 30, 2012
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** R8651 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 27800 NORTHWEST FWY STE 4201, Cypress, TX 77433-5302
- **Phone:** (346) 231-4628
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Memorial Hermann Medical Group (NPI 1003985102, Fulshear, TX); Lc Hospital Medicine Physicians, LLC (NPI 1417654724, Lake Charles, LA); Cep America-Illinois Hospitalists, LLP (NPI 1841613403, Belleville, IL); Iowa Physicians Clinic Medical Foundation (NPI 1366425274, West Des Moines, IA); Methodist Medical Center Of Illinois (NPI 1184670663, Peoria, IL); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** September 23, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1437425675) · Data from the CMS NPPES public registry.