MRS. ELLEN MCLAIN RN
NPI 1053844365
Nurse Practitioner in Oklahoma City, OK
About Mrs. Ellen Mclain Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ELLEN MCLAIN RN (NPI 1053844365) is an individual nurse practitioner in Oklahoma City, Oklahoma, licensed in Oklahoma (83116) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 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
Mrs. Ellen Mclain Rn 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 Ellen Mclain reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Moore, OK 73160
- Reassigned Medicare billing, Oklahoma enrollment
- 83 clinicians in this Medicare group
Norman, OK 73071
- Reassigned Medicare billing, Oklahoma enrollment
- 418 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 7
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73112 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
OKLAHOMA CITY, OK 73112
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 Ellen Mclain's NPI number?
The NPI number for Ellen Mclain is 1053844365. It was assigned to this individual provider in the NPPES registry on April 5, 2017. The provider is also known as Ms. Ellen Davidson Rn.
Where is Ellen Mclain located?
Ellen Mclain practices at 5501 N Portland Ave, Oklahoma City, OK 73112. The listed phone number is (405) 604-6205.
What is Ellen Mclain's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Ellen Mclain enrolled in Medicare?
Yes. Ellen Mclain 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 Ellen Mclain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Mclain reassigns Medicare benefits to 2 organizations: Mercy Oklahoma Ambulatory Services LLC (Moore, OK) and Emergency Services Of Oklahoma PC (Norman, 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 Ellen Mclain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ellen Mclain accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Ellen Mclain 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 Ellen Mclain was last updated on June 28, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Mrs. Ellen Mclain, RN · NPI 1053844365
Nurse Practitioner physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since April 5, 2017.
## Identity
- **NPI:** 1053844365 (Entity type: Individual)
- **Enumerated:** April 5, 2017
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 83116 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 5501 N PORTLAND AVE, Oklahoma City, OK 73112-2074
- **Phone:** (405) 604-6205
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Mercy Oklahoma Ambulatory Services LLC (NPI 1922509173, Moore, OK); Emergency Services Of Oklahoma PC (NPI 1215249891, Norman, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** June 28, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1053844365) · Data from the CMS NPPES public registry.