Katherine Vassallo, MS, PA-C
NPI 1851241178 · Physician Assistant · Central Islip, NY
Katherine Vassallo, MS, PA-C is a Physician Assistant provider in Central Islip, NY (NPI 1851241178).
Provider details
- NPI number
- 1851241178
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MS, PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2026-01-28
- Last updated
- 2026-01-28
- Certified
- 2026-01-28
Frequently asked questions
- What is Katherine Vassallo's NPI number?
- Katherine Vassallo's National Provider Identifier (NPI) is 1851241178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Vassallo's specialty?
- Katherine Vassallo is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Vassallo located?
- Katherine Vassallo's practice location on file with NPPES is 225 Eastview Dr, Central Islip, NY 11722-4539.
- What is Katherine Vassallo's phone number?
- The practice phone number listed in the NPPES registry for Katherine Vassallo is (631) 665-1600.
- Is Katherine Vassallo's NPI active?
- Yes — Katherine Vassallo's NPI (1851241178) is active in the NPPES registry as of the last update on 2026-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.