Katherine Flagg, PH.D. PSYCHOLOGIST
NPI 1225006042 · Clinical Psychologist · Hingham, MA
Katherine Flagg, PH.D. PSYCHOLOGIST is a Clinical Psychologist provider in Hingham, MA (NPI 1225006042).
Provider details
- NPI number
- 1225006042
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D. PSYCHOLOGIST
- Sex
- Female
- Sole proprietor
- Yes
- License
- 3399 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
20 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
- 2006-03-09
- Last updated
- 2009-12-16
Frequently asked questions
- What is Katherine Flagg's NPI number?
- Katherine Flagg's National Provider Identifier (NPI) is 1225006042, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Flagg's specialty?
- Katherine Flagg is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Katherine Flagg located?
- Katherine Flagg's practice location on file with NPPES is 160 Old Derby St., Hingham, MA 02043.
- What is Katherine Flagg's phone number?
- The practice phone number listed in the NPPES registry for Katherine Flagg is (781) 740-4847.
- Is Katherine Flagg's NPI active?
- Yes — Katherine Flagg's NPI (1225006042) is active in the NPPES registry as of the last update on 2009-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.