Hillary Diffee, DMD
NPI 1578059481 · General Practice Dentistry · Portsmouth, VA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hillary Diffee, DMD is a General Practice Dentistry provider in Portsmouth, VA (NPI 1578059481).
Provider details
- NPI number
- 1578059481
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DMD
- Sex
- Female
- Sole proprietor
- No
- License
- 0401416136 (VA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES 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
Mailing address
Registry dates
- Enumerated
- 2018-07-03
- Last updated
- 2023-01-05
- Certified
- 2023-01-05
Frequently asked questions
- What is Hillary Diffee's NPI number?
- Hillary Diffee's National Provider Identifier (NPI) is 1578059481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hillary Diffee's specialty?
- Hillary Diffee is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Hillary Diffee located?
- Hillary Diffee's practice location on file with NPPES is 620 John Paul Jones Cir, Portsmouth, VA 23708-2111.
- What is Hillary Diffee's phone number?
- The practice phone number listed in the NPPES registry for Hillary Diffee is (757) 953-5000.
- Does Hillary Diffee accept Medicare?
- Hillary Diffee is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hillary Diffee's NPI active?
- Yes — Hillary Diffee's NPI (1578059481) is active in the NPPES registry as of the last update on 2023-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.