Allison Rivera-Guernsey, PSY.D
NPI 1275736043 · Clinical Psychologist · Alexandria, VA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allison Rivera-Guernsey, PSY.D is a Clinical Psychologist provider in Alexandria, VA (NPI 1275736043).
Provider details
- NPI number
- 1275736043
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D
- Sex
- Female
- Sole proprietor
- No
- License
- 0810004446 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-06-07
- Last updated
- 2024-06-13
- Certified
- 2024-06-13
Frequently asked questions
- What is Allison Rivera-Guernsey's NPI number?
- Allison Rivera-Guernsey's National Provider Identifier (NPI) is 1275736043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Rivera-Guernsey's specialty?
- Allison Rivera-Guernsey is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Allison Rivera-Guernsey located?
- Allison Rivera-Guernsey's practice location on file with NPPES is 4850 Mark Center Dr, Alexandria, VA 22311-1882.
- What is Allison Rivera-Guernsey's phone number?
- The practice phone number listed in the NPPES registry for Allison Rivera-Guernsey is (703) 746-3400.
- Does Allison Rivera-Guernsey accept Medicare?
- Allison Rivera-Guernsey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allison Rivera-Guernsey's NPI active?
- Yes — Allison Rivera-Guernsey's NPI (1275736043) is active in the NPPES registry as of the last update on 2024-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.