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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CONNECTICUT PROTON THERAPY CENTER LLC
NPI 1790598787
Clinic/Center in Wallingford, CT

Active since January 31, 2025
932 NORTHROP RD, WALLINGFORD, CT 06492(630) 649-4060(312) 896-9537 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 23, 2026, Nov 19, 2025 (2 updates tracked since 2025).

About Connecticut Proton Therapy Center Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CONNECTICUT PROTON THERAPY CENTER LLC (NPI 1790598787), doing business as Connecticut Proton, is a healthcare organization registered as a clinic/center in Wallingford, Connecticut and active in the NPI registry since January 2025. The organization lists Charles Hee Yoo, Vice President, as its authorized official.

NPPES Registry Identity

NPI1790598787
Entity TypeOrganization
Primary Taxonomy261Q00000X
Legal Business NameCONNECTICUT PROTON THERAPY CENTER LLC
Location Address932 NORTHROP RDWallingford, CT 06492-1909
Mailing Address932 Northrop RdWallingford, CT 06492-1909 · (630) 649-4060 · Fax (312) 896-9537
Phone(630) 649-4060
Fax(312) 896-9537
Organization SubpartNo
Authorized OfficialCharles Hee YooVice President · (630) 649-4060
Enumeration DateJanuary 31, 2025
Last NPPES UpdateJuly 23, 20262 updates tracked since enumeration
NPPES CertifiedJuly 23, 2026
✔ NPI 1790598787 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities
Taxonomy Code261Q00000X
Definition
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).
Also ListedRadiology · Radiation OncologyTaxonomy 2085R0001X
Also ListedClinic/Center · OncologyTaxonomy 261QX0200X
Also ListedClinic/Center · Oncology, RadiationTaxonomy 261QX0203X
932 NORTHROP RD, Wallingford, CT 06492
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Other Names 1

Doing Business AsConnecticut Proton

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Connecticut Proton Therapy Center LLC's NPI number?

The NPI number for Connecticut Proton Therapy Center LLC is 1790598787. It was assigned to this organization in the NPPES registry on January 31, 2025. The provider is doing business as Connecticut Proton.

Where is Connecticut Proton Therapy Center LLC located?

Connecticut Proton Therapy Center LLC is located at 932 Northrop Rd, Wallingford, CT 06492. The listed phone number is (630) 649-4060.

What is Connecticut Proton Therapy Center LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

When was this NPI record last updated?

The NPPES record for Connecticut Proton Therapy Center LLC was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.