Justin Day, D.O.
NPI 1821361320 · Diagnostic Radiology Physician · Portsmouth, VA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Day, D.O. is a Diagnostic Radiology Physician provider in Portsmouth, VA (NPI 1821361320).
Provider details
- NPI number
- 1821361320
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 0102203622 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,815 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 215 | $26 |
| Screening Mammography77067 | 213 | $34 |
| X-Ray of Chest, 1 View71045 | 179 | $8 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 130 | $82 |
| Ct Scan Head Or Brain Without Contrast70450 | 129 | $37 |
| Ct Scan of Chest Without Contrast71250 | 96 | $47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-02-14
- Last updated
- 2020-12-15
- Certified
- 2020-12-15
Frequently asked questions
- What is Justin Day's NPI number?
- Justin Day's National Provider Identifier (NPI) is 1821361320, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Day's specialty?
- Justin Day is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Day located?
- Justin Day's practice location on file with NPPES is 620 John Paul Jones Circle, Portsmouth, VA 23708.
- What is Justin Day's phone number?
- The practice phone number listed in the NPPES registry for Justin Day is (757) 953-2518.
- Does Justin Day accept Medicare?
- Justin Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Day's NPI active?
- Yes — Justin Day's NPI (1821361320) is active in the NPPES registry as of the last update on 2020-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.