Louis Grassi, RDCS,RVT
NPI 1386231371 · Sonography Specialist/Technologist Cardiovascular · Miller Place, NY
Louis Grassi, RDCS,RVT is a Sonography Specialist/Technologist Cardiovascular provider in Miller Place, NY (NPI 1386231371).
Provider details
- NPI number
- 1386231371
- Entity type
- Individual
- Primary specialty
- Sonography Specialist/Technologist CardiovascularTechnologists, Technicians & Other Technical Service Providers
- Credential
- RDCS,RVT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 115120
Specialties & taxonomies
Technologists, Technicians & Other Technical Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-12-24
- Last updated
- 2020-12-24
- Certified
- 2020-12-24
Frequently asked questions
- What is Louis Grassi's NPI number?
- Louis Grassi's National Provider Identifier (NPI) is 1386231371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Grassi's specialty?
- Louis Grassi is listed in the NPPES registry with a primary specialty of Sonography Specialist/Technologist Cardiovascular (Technologists, Technicians & Other Technical Service Providers).
- Where is Louis Grassi located?
- Louis Grassi's practice location on file with NPPES is 39 Marbeth Cir, Miller Place, NY 11764-1729.
- What is Louis Grassi's phone number?
- The practice phone number listed in the NPPES registry for Louis Grassi is (631) 775-9755.
- Is Louis Grassi's NPI active?
- Yes — Louis Grassi's NPI (1386231371) is active in the NPPES registry as of the last update on 2020-12-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.