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Medical Oncology

Charles K. Kaufman, MD

Works at hospitals in Saint Louis, MO · Creve Coeur, MO · Missouri

Summary

Dr. Charles K. Kaufman, MD is an oncologist at 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110. Phone: (314) 747-3000. Accepts Medicare assignment. In 2024, Charles K. Kaufman had 138 Original Medicare patients and 19,463 services. NPI 1003953613. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Charles K. Kaufman, 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 Charles K. Kaufman accept Medicare assignment?
Yes. Medicare's clinician data says Charles K. Kaufman 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 Charles K. Kaufman see?
In 2024, CMS data shows 138 Original Medicare patients and 19,463 services for Charles K. Kaufman. This counts Original Medicare only and measures volume, not quality.
What is Charles K. Kaufman's NPI number?
1003953613. 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 Charles K. Kaufman, 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 patients138
Services billed to Medicare19,463
Different services or procedures91
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, fosaprepitant, 1 mg (J1453)2,850 services
  2. Injection, dexamethasone sodium phosphate, 1 mg (J1100)412 services
  3. Injection, palonosetron hcl, 25 mcg (J2469)260 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)102 services
  5. Injection of additional new drug or substance into vein (96375)71 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 pressure72%
  • High cholesterol67%
  • Arthritis47%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)39%
  • Anxiety37%
  • Ischemic heart disease33%

Hospitals where Charles K. Kaufman works

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

Group practices

Medicare enrollment lists Charles K. Kaufman as a member of this group (CMS data updated October 2, 2026).

  • Washington University3,029 clinicians in the group

Specialties

Find other Medical Oncology doctors in Missouri →

Other oncologists in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All oncologists in Saint Louis →

Other clinicians in Washington University

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

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003953613
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