HASSAN HATOUM MD
NPI 1902137540
Internal Medicine - Hematology & Oncology in Oklahoma City, OK
About Hassan Hatoum Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HASSAN HATOUM MD (NPI 1902137540) is an individual hematology & oncology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (31656) and active in the NPI registry since January 2010. He is enrolled in Medicare PECOS, is affiliated with Mcalester Regional Health Center, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses 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
Hassan Hatoum 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
2Medicare enrollment records show Hassan Hatoum reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 845 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 1,795 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mcalester Regional Health Center
Acute Care Hospitals · Mcalester, OKO U Medical Center
Acute Care Hospitals · Oklahoma City, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Hassan Hatoum's NPI number?
The NPI number for Hassan Hatoum is 1902137540. It was assigned to this individual provider in the NPPES registry on January 21, 2010.
Where is Hassan Hatoum located?
Hassan Hatoum practices at 800 NE 10th St. Okcc 2001-6 Stephenson Cancer Center//University Of Oklahoma Health, Oklahoma City, OK 73104. The listed phone number is (405) 272-4022.
What is Hassan Hatoum's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Hassan Hatoum enrolled in Medicare?
Yes. Hassan Hatoum 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 Hassan Hatoum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hassan Hatoum reassigns Medicare benefits to 2 organizations: Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK) and Ou Health Partners, Inc (Oklahoma City, OK). 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 Hassan Hatoum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hassan Hatoum accept?
Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list Hassan Hatoum 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 Hassan Hatoum affiliated with any hospitals?
According to CMS data, Hassan Hatoum is affiliated with Mcalester Regional Health Center and O U Medical Center.
When was this NPI record last updated?
The NPPES record for Hassan Hatoum was last updated on August 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.