Stefanie Proia, CPNP
NPI 1700035193 · Pediatric Nurse Practitioner · Northridge, CA
Stefanie Proia, CPNP is a Pediatric Nurse Practitioner provider in Northridge, CA (NPI 1700035193).
Provider details
- NPI number
- 1700035193
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CPNP
- Sex
- Female
- Sole proprietor
- No
- License
- NP18431 (CA)
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 tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 425 Haaland Dr Ste 104Thousand Oaks, CA 91361-5230Phone: (805) 494-1948
Registry dates
- Enumerated
- 2008-09-10
- Last updated
- 2026-05-22
- Certified
- 2026-05-22
Frequently asked questions
- What is Stefanie Proia's NPI number?
- Stefanie Proia's National Provider Identifier (NPI) is 1700035193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefanie Proia's specialty?
- Stefanie Proia is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stefanie Proia located?
- Stefanie Proia's practice location on file with NPPES is 18546 Roscoe Blvd, Northridge, CA 91324-4663.
- What is Stefanie Proia's phone number?
- The practice phone number listed in the NPPES registry for Stefanie Proia is (818) 885-8040.
- Is Stefanie Proia's NPI active?
- Yes — Stefanie Proia's NPI (1700035193) is active in the NPPES registry as of the last update on 2026-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.