Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Denise Mastando
Physical Therapist in Riverhead, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558542159
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Registry record
Entity type Individual (Type 1)
Name Denise Mastando
Sex Female
Practice address 806 E Main St, Riverhead, NY, 11901
Phone (631) 369-4440
Enumeration date Nov 25, 2007
Last updated in NPPES Nov 25, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 62 029862 (NY) 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.
Frequently asked questions
Where does Denise Mastando practice?
The practice location on file with NPPES is in Riverhead, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Denise Mastando?
The National Provider Identifier (NPI) for Denise Mastando is 1558542159, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Suffolk Rehabilitation Medicine, Pllc Physical Medicine & Rehabilitation Physician · Riverhead, NY NPI 1225084858 Jennifer Oliveri Physical Therapist · Riverhead, NY NPI 1659304285 Jcm Physical Therapy PC Physical Therapist · Riverhead, NY NPI 1912003310 Noe Garza Foot & Ankle Surgery Podiatrist · Riverhead, NY NPI 1902332786 Fabliha Anbar Foot Surgery Podiatrist · Riverhead, NY NPI 1144718974
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-25.