Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew Orton, M.D.

Radiation Oncology Physician in Lafayette, IN · enumerated 2008 · practices at Arnett Clinic, LLC.

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

National Provider Identifier

1144488917

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Registry record

Entity type Individual (Type 1)

Name Matthew Orton

Credential M.D.

Sex Male

Practice address 420 N 26th St, Lafayette, IN, 47904

Phone (765) 448-8000

Fax (765) 448-7599

Enumeration date May 29, 2008

Last updated in NPPES Feb 3, 2021

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 01072107A (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
000000819295	Other	IN	ANTHEM PIN
201167760	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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Matthew Orton?

Matthew Orton is registered in NPPES with the primary taxonomy of Radiation Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Vijaya Kakani Medical Oncology Physician · Lafayette, IN NPI 1760451413 Thomas Jones Hematology (Internal Medicine) Physician · Lafayette, IN NPI 1629047196 George Ramsey Medical Oncology Physician · Lafayette, IN NPI 1730158932 Vandana Raman Hematology & Oncology Physician · Lafayette, IN NPI 1457445843 Arnett Clinic, LLC Durable Medical Equipment & Medical Supplies · Lafayette, IN NPI 1639234537 Neil Estabrook Radiation Oncology Physician · Lafayette, IN NPI 1124317102 Nadine Cline Adult Health Nurse Practitioner · Lafayette, IN NPI 1730475120 Erin Hoag Oncology Pharmacist · Lafayette, IN NPI 1003391814

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-03.