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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John Calvin Deitz, BS RDGS RDCS RVT

Sonography Specialist/Technologist Cardiovascular in Holland, PA · enumerated 2006 · practices at Diagraphics.

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

National Provider Identifier

1649333618

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Registry record

Entity type Individual (Type 1)
Name Mr. John Calvin Deitz
Credential BS RDGS RDCS RVT
Sex Male
Practice address 1258 Old Jordan Rd, Holland, PA, 18966
Phone (215) 322-2943
Fax (215) 322-3011
Enumeration date Dec 19, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

246Y00000X Health Information Specialist/Technologist Technologists, Technicians & Other Technical Service Providers Secondary
2471S1302X Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Secondary
2471V0105X Vascular Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Secondary
246XS1301X Sonography Specialist/Technologist Cardiovascular Technologists, Technicians & Other Technical Service Providers Primary

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 John Deitz?
The National Provider Identifier (NPI) for John Deitz is 1649333618, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Deitz practice?
The practice location on file with NPPES is in Holland, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.