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Emergency Medicine

Katherine Lang, DO

Works at hospitals in Cleveland, OH · Avon, OH · Ohio

Summary

Dr. Katherine Lang, DO is an emergency medicine doctor at 9500 Euclid Ave, Cleveland, OH 44195. Phone: (216) 444-5433. Accepts Medicare assignment. In 2024, Katherine Lang had 124 Original Medicare patients and 142 services. NPI 1457881617. 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: 9500 Euclid Ave, Cleveland, OH 44195 · Directions
  • Phone: (216) 444‑5433
  • Medicare: Accepts Medicare assignment
  • Hospitals: Cleveland Clinic, Cleveland Clinic Avon Hospital
  • Group practice: Cleveland Clinic
  • Medical school: Campbell Univ School Of Osteopathic Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Katherine Lang, 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 Katherine Lang accept Medicare assignment?
Yes. Medicare's clinician data says Katherine Lang 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 Katherine Lang see?
In 2024, CMS data shows 124 Original Medicare patients and 142 services for Katherine Lang. This counts Original Medicare only and measures volume, not quality.
What is Katherine Lang's NPI number?
1457881617. 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 Katherine Lang, 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 patients124
Services billed to Medicare142
Different services or procedures14
Participating Medicare providerYes
Average age of these patients67

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)97 services
  2. Emergency department visit with moderate level of medical decision making (99284)16 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 pressure73%
  • High cholesterol64%
  • Arthritis46%
  • Diabetes41%
  • Depression35%
  • Anxiety34%

Hospitals where Katherine Lang works

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

Group practices

Medicare enrollment lists Katherine Lang as a member of this group (CMS data updated October 2, 2026).

  • Cleveland Clinic7,090 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Ohio →

Other emergency medicine doctors in Cleveland

Clinicians with the same Medicare primary specialty in Cleveland, OH — not a recommendation.

All emergency medicine doctors in Cleveland →

Other clinicians in Cleveland Clinic

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

Clinician information

CredentialDO
Medical schoolCampbell Univ School Of Osteopathic Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1457881617
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