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Justin Massaro
NPI 1285571851 · Registered Nurse · Sacramento, CA
Justin Massaro is a Registered Nurse provider in Sacramento, CA (NPI 1285571851).
Provider details
- NPI number
- 1285571851
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- D767370 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(53/100 index)
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
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
4301 X St
Sacramento, CA 95817-2214
Phone: (916) 734-2011
Street-level locationGet directions
Mailing address
5716 Folsom Blvd
Sacramento, CA 95819-4608
Registry dates
- Enumerated
- 2026-05-01
- Last updated
- 2026-05-01
- Certified
- 2026-05-01
Frequently asked questions
- What is Justin Massaro's NPI number?
- Justin Massaro's National Provider Identifier (NPI) is 1285571851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Massaro's specialty?
- Justin Massaro is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Justin Massaro located?
- Justin Massaro's practice location on file with NPPES is 4301 X St, Sacramento, CA 95817-2214.
- What is Justin Massaro's phone number?
- The practice phone number listed in the NPPES registry for Justin Massaro is (916) 734-2011.
- Is Justin Massaro's NPI active?
- Yes — Justin Massaro's NPI (1285571851) is active in the NPPES registry as of the last update on 2026-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.