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Emergency Medicine

James M. Lehman, MD

Works at hospitals in Junction City, KS · Topeka, KS · Kansas

Summary

Dr. James M. Lehman, MD is an emergency medicine doctor at 1102 Saint Marys Rd, Junction City, KS 66441. Phone: (785) 762-2585. Accepts Medicare assignment. In 2024, James M. Lehman had 639 Original Medicare patients and 816 services. NPI 1578571766. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1102 Saint Marys Rd, Junction City, KS 66441 · Directions (1 more location)
  • Phone: (785) 762‑2585
  • Medicare: Accepts Medicare assignment
  • Hospitals: Stormont Vail Health Flint Hills, LLC, Stormont Vail Hospital
  • Group practice: Cotton-O'neil Clinic Revocable Trust (+1 more)
  • Medical school: University Of Kansas School Of Med (kc/wich/sal) · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about James M. Lehman, 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 James M. Lehman accept Medicare assignment?
Yes. Medicare's clinician data says James M. Lehman 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 James M. Lehman see?
In 2024, CMS data shows 639 Original Medicare patients and 816 services for James M. Lehman. This counts Original Medicare only and measures volume, not quality.
What is James M. Lehman's NPI number?
1578571766. 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 James M. Lehman, 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 patients639
Services billed to Medicare816
Different services or procedures28
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)416 services
  2. Emergency department visit with high level of medical decision making (99285)173 services
  3. Emergency department visit with moderate level of medical decision making (99284)144 services
  4. Emergency department visit with low level of medical decision making (99283)25 services
  5. Critical care, first 30-74 minutes (99291)12 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 cholesterol75%
  • Arthritis56%
  • Diabetes41%
  • Ischemic heart disease41%
  • Chronic kidney disease41%

Hospitals where James M. Lehman works

Medicare's Facility Affiliation Data lists James M. Lehman 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 James M. Lehman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists James M. Lehman as a member of these groups (CMS data updated October 2, 2026).

  • Cotton-O'neil Clinic Revocable Trust666 clinicians in the group
  • Stormont Vail Health Flint Hills LLC48 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Kansas →

Other emergency medicine doctors in Junction City

Clinicians with the same Medicare primary specialty in Junction City, KS — not a recommendation.

All emergency medicine doctors in Junction City →

Other clinicians in Cotton-O'neil Clinic Revocable Trust

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

Clinician information

CredentialMD
Medical schoolUniversity Of Kansas School Of Med (kc/wich/sal)
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578571766
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