AllergyNest

Jason E. Casselman, DO

Listed as an allergist, with 4 practice addresses in Richmond, Indiana, and Greenville and Eaton, Ohio.

Practice locations 4

  • Reid Physician Associates Inc

    1100 Reid Pkwy
    Richmond, IN 47374

  • Reid Physician Associates Inc

    1101 Jackson St
    Greenville, OH 45331

  • Reid Physician Associates Inc

    1434 Chester Blvd, Suite 2
    Richmond, IN 47374

    (765) 966-1600

  • Reid Physician Associates Inc

    550 Hallmark Dr
    Eaton, OH 45320

    (937) 456-4181

From the records

Specialty
Allergist
Records
Medicare records: allergy/immunology (October 2026).
Medicare
Accepts the Medicare-approved amount as payment in full (Medicare assignment), according to CMS’s file. This applies to Original Medicare; Medicare Advantage plans have their own networks. What assignment means
Medical school
Michigan State University College of Osteopathic Medicine, graduated 2011 (Medicare records)
Registry record
Last updated May 2021
NPI
1538456462 (national provider registry)

A listing isn’t a check of a license or board certification, and it doesn’t tell you whether a doctor is taking new patients or accepts your insurance. Call the practice. How we list doctorsChecking your insurance

Is this your listing?

If you’re this doctor or work at their practice, claim the listing to add details such as languages, a website and a booking link. It’s free, and it never changes where a doctor appears in our lists.

Claim this listing How claiming works

Report a problem with this listing

From CMS’s Doctors and Clinicians file (October 2026) and the national provider registry, NPPES (October 2026). Listings are free and in alphabetical order; we don’t rate or recommend doctors. How we list doctors