OKLAHOMA MEDICAL RESEARCH FOUNDATION
NPI 1851561625
Internal Medicine - Rheumatology in Oklahoma City, OK
About Oklahoma Medical Research Foundation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OKLAHOMA MEDICAL RESEARCH FOUNDATION (NPI 1851561625) is a healthcare organization registered as a rheumatology in Oklahoma City, Oklahoma and active in the NPI registry since March 2008. The organization lists Timothy Hassen, Vp And Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Oklahoma Medical Research Foundation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
9Medicare enrollment records show 9 clinicians reassign Medicare billing to Oklahoma Medical Research Foundation, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 8 within 10 miles. They are listed nearest first.
Clinicians, nearest first (9)
Oklahoma City, OK 73104
Farmington Hills, MI 48334
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Oklahoma Medical Research Foundation's NPI number?
The NPI number for Oklahoma Medical Research Foundation is 1851561625. It was assigned to this organization in the NPPES registry on March 7, 2008.
Where is Oklahoma Medical Research Foundation located?
Oklahoma Medical Research Foundation is located at 825 NE 13th St, Oklahoma City, OK 73104. The listed phone number is (405) 271-7410.
What is Oklahoma Medical Research Foundation's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Oklahoma Medical Research Foundation enrolled in Medicare?
Yes. Oklahoma Medical Research Foundation is registered in the Medicare PECOS enrollment system.
When is Oklahoma Medical Research Foundation's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Oklahoma, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Oklahoma Medical Research Foundation?
According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians in 5 Medicare specialties reassign their Medicare billing to Oklahoma Medical Research Foundation. A 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 the clinician's services. The largest specialties are Neurology (3), Rheumatology (3) and Clinical Social Worker (1). Of these, 1 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Oklahoma Medical Research Foundation accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Oklahoma Medical Research Foundation 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.
When was this NPI record last updated?
The NPPES record for Oklahoma Medical Research Foundation was last updated on July 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Oklahoma Medical Research Foundation · NPI 1851561625
Rheumatology organization in Oklahoma City, Oklahoma. Organization record, active in the CMS NPPES registry since March 7, 2008.
## Identity
- **NPI:** 1851561625 (Entity type: Organization)
- **Enumerated:** March 7, 2008
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **Organization subpart:** No
- **Authorized official:** Timothy Hassen, VP AND CFO
## Practice location
- **Address:** 825 NE 13TH ST, Oklahoma City, OK 73104-5005
- **Phone:** (405) 271-7410 · **Fax:** (405) 271-8797
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, Oklahoma, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 9 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Neurology (3), Rheumatology (3), Clinical Social Worker (1); 1 practice at this address and 8 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 1, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1851561625) · Data from the CMS NPPES public registry.