Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Ellen E. McLain, NP

Sees patients in Nichols Hills, OK · Oklahoma City, OK · Oklahoma

Summary

Ellen E. McLain, NP (Nurse Practitioner) is enrolled with Medicare at 2 practice locations in Nichols Hills, OK and Oklahoma City, OK. NPI 1053844365. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ellen E. McLain, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
FemaleGender (as listed)
Mercy Oklahoma Ambulatory Services LLCGroup practice

Quick answers

Where does Ellen E. McLain see patients?
Medicare's clinician data lists 2 practice locations, including Nichols Hills, OK and Oklahoma City, OK. Call before your visit to confirm the address.
What is Ellen E. McLain's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Ellen E. McLain accept Medicare assignment?
Yes. Medicare's clinician data says Ellen E. McLain accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Ellen E. McLain?
(405) 652-0632, as listed in official Medicare / NPI Registry data.
What is Ellen E. McLain's NPI number?
1053844365. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ellen E. McLain is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ellen E. McLain as a member of this group (CMS data updated 2026-10-02).

  • Mercy Oklahoma Ambulatory Services LLC48 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Oklahoma →

Other nurse practitioners in Nichols Hills

Clinicians with the same Medicare primary specialty in Nichols Hills, OK — not a recommendation.

All nurse practitioners in Nichols Hills →

Clinician information

CredentialNP
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053844365
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians