Allison Gregg
NPI 1386343911 · Clinical Neuropsychologist · Belmont, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allison Gregg is a Clinical Neuropsychologist provider in Belmont, MA (NPI 1386343911).
Provider details
- NPI number
- 1386343911
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY10001181 (MA)
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
3 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
- 2023-03-02
- Last updated
- 2026-04-07
- Certified
- 2026-04-07
Frequently asked questions
- What is Allison Gregg's NPI number?
- Allison Gregg's National Provider Identifier (NPI) is 1386343911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Gregg's specialty?
- Allison Gregg is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Allison Gregg located?
- Allison Gregg's practice location on file with NPPES is 115 Mill St, Belmont, MA 02478-1048.
- What is Allison Gregg's phone number?
- The practice phone number listed in the NPPES registry for Allison Gregg is (617) 855-2000.
- Does Allison Gregg accept Medicare?
- Allison Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allison Gregg's NPI active?
- Yes — Allison Gregg's NPI (1386343911) is active in the NPPES registry as of the last update on 2026-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.