NATHAN NELSON DO
NPI 1639798150
Emergency Medicine in Tulsa, OK
About Nathan Nelson Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN NELSON DO (NPI 1639798150) is an individual emergency medicine provider in Tulsa, Oklahoma, licensed in Oklahoma (7281) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Mcalester Regional Health Center, and maintains a secondary practice location in San Antonio.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Nathan Nelson Do 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 Nathan Nelson reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tulsa, OK 74104
- Reassigned Medicare billing, Oklahoma enrollment
- 162 clinicians in this Medicare group
Claremore, OK 74017
- Reassigned Medicare billing, Texas enrollment
- 1,047 clinicians in this Medicare group
Muskogee, OK 74401
- Reassigned Medicare billing, Texas enrollment
- 655 clinicians in this Medicare group
Mcalester, OK 74501
- Reassigned Medicare billing, Oklahoma enrollment
- 106 clinicians in this Medicare group
Mcalester, OK 74501
- Reassigned Medicare billing, Oklahoma enrollment
- 59 clinicians in this Medicare group
Elk City, OK 73644
- Reassigned Medicare billing, Oklahoma enrollment
- 59 clinicians in this Medicare group
San Antonio, TX 78248
- Reassigned Medicare billing, Texas enrollment
- 52 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, OKCherokee Nation W W Hastings Indian Hospital
Acute Care Hospitals · Tahlequah, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74127 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.
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.
TULSA, OK 74127
TULSA, OK 74127
TULSA, OK 74127
TULSA, OK 74127
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 Nathan Nelson's NPI number?
The NPI number for Nathan Nelson is 1639798150. It was assigned to this individual provider in the NPPES registry on April 14, 2020.
Where is Nathan Nelson located?
Nathan Nelson practices at 744 W 9th St, Tulsa, OK 74127. The listed phone number is (918) 599-1000.
What is Nathan Nelson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nathan Nelson enrolled in Medicare?
Yes. Nathan Nelson 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 Nathan Nelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Nelson reassigns Medicare benefits to 7 organizations: Green Country Emergency Physicians Group Of Tulsa PLLC (Tulsa, OK), Cherokee Nation (Claremore, OK), Creek Nation Hospital & Clinics (Muskogee, OK), Mcalester Regional Health Center Authority (Mcalester, OK), Premier Physician Staffing 2 PLLC (Mcalester, OK) 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 Nathan Nelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Nelson accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Nathan Nelson 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 Nathan Nelson affiliated with any hospitals?
According to CMS data, Nathan Nelson is affiliated with Mcalester Regional Health Center and Cherokee Nation W W Hastings Indian Hospital.
When was this NPI record last updated?
The NPPES record for Nathan Nelson was last updated on March 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Nathan Nelson, DO · NPI 1639798150
Emergency Medicine physician in Tulsa, Oklahoma. Individual provider, active in the CMS NPPES registry since April 14, 2020.
## Identity
- **NPI:** 1639798150 (Entity type: Individual)
- **Enumerated:** April 14, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 7281 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 744 W 9TH ST, Tulsa, OK 74127-9907
- **Phone:** (918) 599-1000
## 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): Green Country Emergency Physicians Group Of Tulsa PLLC (NPI 1972698553, Tulsa, OK); Cherokee Nation (NPI 1497568968, Claremore, OK); Creek Nation Hospital & Clinics (NPI 1922873611, Muskogee, OK); Mcalester Regional Health Center Authority (NPI 1316940034, Mcalester, OK); Premier Physician Staffing 2 PLLC (NPI 1326509407, Mcalester, OK); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oklahoma State University College Of Osteopathic Medicine, class of 2020
## Record status
- **NPPES last updated:** March 8, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1639798150) · Data from the CMS NPPES public registry.