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Allergy/Immunology

Jason Casselman, DO

Works at hospitals in Richmond, IN · Indiana

Summary

Jason Casselman, DO (Allergy/Immunology) is listed by Medicare at 1 hospital in Richmond, IN. NPI 1538456462. 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 Jason Casselman, 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

Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
Michigan State University College Of Osteopathic MedicineMedical school
MaleGender (as listed)
Reid Physician Associates IncGroup practice

Quick answers

Which hospitals does Jason Casselman work at?
Medicare's official clinician data lists Jason Casselman at 1 hospital: Reid Health. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jason Casselman see patients?
Medicare's clinician data lists 4 practice locations, including Richmond, IN, Greenville, OH and Eaton, OH. Call before your visit to confirm the address.
What is Jason Casselman's specialty?
Medicare lists Allergy/Immunology as the primary specialty.
Does Jason Casselman accept Medicare assignment?
Yes. Medicare's clinician data says Jason Casselman 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 Jason Casselman?
(765) 966-1600, as listed in official Medicare / NPI Registry data.
What is Jason Casselman's NPI number?
1538456462. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jason Casselman works

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

Group practices

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

  • Reid Physician Associates Inc432 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Indiana →

Other allergist and immunologists in Indiana

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

All allergist and immunologists in Indiana →

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538456462
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