Mary Grace Justiniani, PA-C
NPI 1619012689 · Physician Assistant · Van Nuys, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Grace Justiniani, PA-C is a Physician Assistant provider in Van Nuys, CA (NPI 1619012689).
Provider details
- NPI number
- 1619012689
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA 17249 (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
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 70 | 26 |
| Lisinopril | 64 | 22 |
| Atorvastatin Calcium | 51 | 24 |
| Amlodipine Besylate | 48 | 19 |
| Levothyroxine Sodium | 34 | 11 |
| Simvastatin | 33 | 13 |
| Losartan Potassium | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$62 across 3 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
Registry dates
- Enumerated
- 2007-02-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Grace Justiniani's NPI number?
- Mary Grace Justiniani's National Provider Identifier (NPI) is 1619012689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Grace Justiniani's specialty?
- Mary Grace Justiniani is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Grace Justiniani located?
- Mary Grace Justiniani's practice location on file with NPPES is 14044 Victory Blvd, Van Nuys, CA 91401-2226.
- What is Mary Grace Justiniani's phone number?
- The practice phone number listed in the NPPES registry for Mary Grace Justiniani is (818) 376-0405.
- Does Mary Grace Justiniani accept Medicare?
- Mary Grace Justiniani is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Grace Justiniani's NPI active?
- Yes — Mary Grace Justiniani's NPI (1619012689) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.