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Hospitalist

Thomas J. Whalen, DO

Works at hospitals in Norman, OK · Oklahoma City, OK · Oklahoma

Summary

Thomas J. Whalen, DO (Hospitalist) is listed by Medicare at 2 hospitals in Norman, OK and Oklahoma City, OK. NPI 1891869640. 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 Thomas J. Whalen, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
34Years since medical school (graduated 1992)
Oklahoma State University College Of Osteopathic MedicineMedical school
MaleGender (as listed)
Norman Inpatient Physicians PLLCGroup practice

Quick answers

Which hospitals does Thomas J. Whalen work at?
Medicare's official clinician data lists Thomas J. Whalen at 2 hospitals: Norman Regional and O U Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Thomas J. Whalen see patients?
Medicare's clinician data lists 1 practice location in Norman, OK. Call before your visit to confirm the address.
What is Thomas J. Whalen's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Thomas J. Whalen accept Medicare assignment?
Yes. Medicare's clinician data says Thomas J. Whalen 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 Thomas J. Whalen?
(405) 515-1000, as listed in official Medicare / NPI Registry data.
What is Thomas J. Whalen's NPI number?
1891869640. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Thomas J. Whalen works

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

Group practices

Medicare enrollment lists Thomas J. Whalen as a member of this group (CMS data updated 2026-10-02).

  • Norman Inpatient Physicians PLLC4 clinicians in the group

Specialties

Find other Hospitalist doctors in Oklahoma →

Other hospitalists in Norman

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

All hospitalists in Norman →

Clinician information

CredentialDO
Medical schoolOklahoma State University College Of Osteopathic Medicine
Graduation year1992
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891869640
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