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Hematology/Oncology

William J. Hyman, MD

Works at hospitals in Killeen, TX · Tulsa, OK · Denison, TX · Texas, Oklahoma

Summary

William J. Hyman, MD (Hematology/Oncology) is listed by Medicare at 3 hospitals in Killeen, TX, Tulsa, OK and Denison, TX. NPI 1306889340. 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 William J. Hyman, 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
41Years since medical school (graduated 1985)
Baylor College Of MedicineMedical school
MaleGender (as listed)
Hospitalist Medicine Physicians of Texas PLLCGroup practice (+2 more)

Quick answers

Which hospitals does William J. Hyman work at?
Medicare's official clinician data lists William J. Hyman at 3 hospitals: AdventHealth Central Texas, Saint Francis Hospital, Inc and Texoma Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William J. Hyman see patients?
Medicare's clinician data lists 4 practice locations, including Killeen, TX, Corsicana, TX and Denison, TX. Call before your visit to confirm the address.
What is William J. Hyman's specialty?
Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
Does William J. Hyman accept Medicare assignment?
Yes. Medicare's clinician data says William J. Hyman 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 William J. Hyman?
(254) 526-7523, as listed in official Medicare / NPI Registry data.
What is William J. Hyman's NPI number?
1306889340. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William J. Hyman works

Medicare's Facility Affiliation Data lists William J. Hyman 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 William J. Hyman is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists William J. Hyman as a member of these groups (CMS data updated 2026-10-02).

  • Hospitalist Medicine Physicians of Texas PLLC686 clinicians in the group
  • Hospitalist Medicine Physicians of Texas - Burnet PLLC76 clinicians in the group
  • Saint Francis Hospital, Inc.61 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Texas →

Other hematologist-oncologists in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

All hematologist-oncologists in Texas →

Clinician information

CredentialMD
Medical schoolBaylor College Of Medicine
Graduation year1985
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1306889340
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