DONALD ERIK ASPENSON M.D.
NPI 1225008550
Internal Medicine - Endocrinology, Diabetes & Metabolism in Tulsa, OK
About Donald Erik Aspenson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DONALD ERIK ASPENSON M.D. (NPI 1225008550) is an individual endocrinology, diabetes & metabolism provider in Tulsa, Oklahoma, licensed in Oklahoma (23817) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Donald Erik Aspenson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Donald Aspenson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tulsa, OK 74133
- Reassigned Medicare billing, Oklahoma enrollment
- 151 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74133 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 6
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 20
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 Donald Aspenson's NPI number?
The NPI number for Donald Aspenson is 1225008550. It was assigned to this individual provider in the NPPES registry on January 26, 2006.
Where is Donald Aspenson located?
Donald Aspenson practices at 8921 S Mingo Rd, Tulsa, OK 74133. The listed phone number is (888) 397-8387.
What is Donald Aspenson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Donald Aspenson enrolled in Medicare?
Yes. Donald Aspenson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Donald Aspenson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Aspenson reassigns Medicare benefits to Ahs Oklahoma Heart LLC (Tulsa, OK). The 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 Donald Aspenson'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 Donald Aspenson was last updated on September 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.