NPI Portal NPI Lookup & Verification

Mr. John O Grimaldi, PT

Mr. John O Grimaldi is a Physical Therapist provider (Physical Therapist) practicing in Patchogue, NY, registered in the NPPES registry with NPI 1508988692 since 2007. The credential PT stands for Physical Therapist. Practices at South Shore Neurologic Associates PC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1508988692
Entity type Individual (Type 1)
Name Mr. John O Grimaldi
Credential PT
Sex Male
Practice address Patchogue, NY, 11772
Phone 6312072370
Enumeration date 2007-04-06
Last updated in NPPES 2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
225100000X Physical Therapist Primary 16338-1 NY

PT — Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Copy-ready billing details
Provider: John Grimaldi, PT
NPI: 1508988692
Taxonomy: 225100000X (Physical Therapist)
Address: Patchogue, NY, 11772

Other providers at this practice address

NPI Name Type Specialty Location
1114900925 Bonnie Rosen Individual Diagnostic Radiology Physician Patchogue, NY
1427080563 Susan Mackey Individual Physician Assistant Patchogue, NY
1104922244 Lisa Hodge-Scelsa Individual Adult Health Nurse Practitioner Patchogue, NY
1437228632 Amy Rafuse Individual Physical Therapist Patchogue, NY
1437222197 Elisa Procaccini Individual Physical Therapist Patchogue, NY
1083782460 South Shore Neurologic Associates PC Organization Magnetic Resonance Imaging (MRI) Clinic/Center Patchogue, NY
1518180173 Catherine Augustine Individual Physical Therapist Patchogue, NY
1396071262 Stacy Trebing Individual Physical Therapist Patchogue, NY

Verify this record

Cross-check NPI 1508988692 against the authoritative CMS record: view Mr. John O Grimaldi on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is John Grimaldi?
John Grimaldi is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.