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Obstetrics/Gynecology

Kelsey J. Lemay, DO

Works at hospitals in Ardmore, OK · Oklahoma

Summary

Dr. Kelsey J. Lemay, DO is an OB-GYN at 731 12th Nwave, 200 Mercy Clinic, Ardmore, OK 73401. Phone: (580) 220-6189. Accepts Medicare assignment. In 2024, Kelsey J. Lemay had 36 Original Medicare patients and 55 services. NPI 1760942957. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 731 12th Nwave, 200 Mercy Clinic, Ardmore, OK 73401 · Directions
  • Phone: (580) 220‑6189
  • Medicare: Accepts Medicare assignment
  • Hospital: Mercy Hospital Ardmore, Inc
  • Group practice: Mercy Clinic Oklahoma Communities
  • Medical school: Oklahoma State University College Of Osteopathic Medicine · graduated 2019 (7 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kelsey J. Lemay, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kelsey J. Lemay accept Medicare assignment?
Yes. Medicare's clinician data says Kelsey J. Lemay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kelsey J. Lemay see?
In 2024, CMS data shows 36 Original Medicare patients and 55 services for Kelsey J. Lemay. This counts Original Medicare only and measures volume, not quality.
What is Kelsey J. Lemay's NPI number?
1760942957. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kelsey J. Lemay, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients36
Services billed to Medicare55
Different services or procedures12
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)13 services
  2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol50%
  • Arthritis42%
  • Ischemic heart disease36%

Hospitals where Kelsey J. Lemay works

Medicare's Facility Affiliation Data lists Kelsey J. Lemay at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Kelsey J. Lemay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kelsey J. Lemay as a member of this group (CMS data updated October 2, 2026).

  • Mercy Clinic Oklahoma Communities649 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Oklahoma →

Other OB-GYNs in Ardmore

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

All OB-GYNs in Ardmore →

Other clinicians in Mercy Clinic Oklahoma Communities

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolOklahoma State University College Of Osteopathic Medicine
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1760942957
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians