Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jason Evan Casselman, D.O.

Allergy & Immunology (Internal Medicine) Physician in Richmond, IN · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538456462

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Registry record

Entity type Individual (Type 1)

Name Dr. Jason Evan Casselman

Credential D.O.

Sex Male

Practice address 1434 Chester Blvd, Reid Ent, Richmond, IN, 47374

Phone (765) 966-9600

Fax (765) 962-9641

Enumeration date Jun 29, 2011

Last updated in NPPES May 12, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5101019322 (MI) Secondary

207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 34.011409 (OH) Secondary

207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 02004839A (IN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
000001014850	Other	-	ANTHEM
0172513	Medicaid	OH	-
201359200	Medicaid	IN	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Jason Casselman?

The National Provider Identifier (NPI) for Jason Casselman is 1538456462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jason Casselman practice?

The practice location on file with NPPES is in Richmond, IN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-12.