Grant Decastillia
NPI 1437047156 · Physician Assistant · Norfolk, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grant Decastillia is a Physician Assistant provider in Norfolk, VA (NPI 1437047156).
Provider details
- NPI number
- 1437047156
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- 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
1 yr in NPPES 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
- 2025-06-24
- Last updated
- 2025-06-24
- Certified
- 2025-06-24
Frequently asked questions
- What is Grant Decastillia's NPI number?
- Grant Decastillia's National Provider Identifier (NPI) is 1437047156, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Decastillia's specialty?
- Grant Decastillia is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grant Decastillia located?
- Grant Decastillia's practice location on file with NPPES is 425 W 20th St Ste 1, Norfolk, VA 23517-2128.
- What is Grant Decastillia's phone number?
- The practice phone number listed in the NPPES registry for Grant Decastillia is (757) 237-6566.
- Does Grant Decastillia accept Medicare?
- Grant Decastillia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grant Decastillia's NPI active?
- Yes — Grant Decastillia's NPI (1437047156) is active in the NPPES registry as of the last update on 2025-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.