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Hematology/Oncology

Carl Freter, MD

Works at hospitals in Duncan, OK · Lawton, OK · Spokane, WA · Oklahoma, Washington

Summary

Carl Freter, MD (Hematology/Oncology) is listed by Medicare at 3 hospitals in Duncan, OK, Lawton, OK and Spokane, WA. NPI 1760594071. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Carl Freter, 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

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
45Years since medical school (graduated 1981)
Washington University School Of MedicineMedical school
MaleGender (as listed)
Cancer Centers of Southwest Oklahoma, LLCGroup practice

Quick answers

Which hospitals does Carl Freter work at?
Medicare's official clinician data lists Carl Freter at 3 hospitals: Duncan Regional Hospital, Inc, Memorial Health and Providence Holy Family Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Carl Freter see patients?
Medicare's clinician data lists 1 practice location in Lawton, OK. Call before your visit to confirm the address.
What is Carl Freter's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Carl Freter accept Medicare assignment?
Yes. Medicare's clinician data says Carl Freter 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 Carl Freter?
(580) 536-2121, as listed in official Medicare / NPI Registry data.
What is Carl Freter's NPI number?
1760594071. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Carl Freter works

Medicare's Facility Affiliation Data lists Carl Freter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Carl Freter is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Carl Freter as a member of this group (CMS data updated 2026-10-02).

  • Cancer Centers of Southwest Oklahoma, LLC20 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Oklahoma →

Other hematologist-oncologists in Lawton

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

All hematologist-oncologists in Lawton →

Clinician information

CredentialMD
Medical schoolWashington University School Of Medicine
Graduation year1981
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1760594071
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians