Hannah Holbrook, PHD
NPI 1851816185 · Clinical Psychologist · Portland, ME
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Holbrook, PHD is a Clinical Psychologist provider in Portland, ME (NPI 1851816185).
Provider details
- NPI number
- 1851816185
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- PS2550 (ME)
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
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
- 2017-08-08
- Last updated
- 2024-01-08
- Certified
- 2021-09-15
Frequently asked questions
- What is Hannah Holbrook's NPI number?
- Hannah Holbrook's National Provider Identifier (NPI) is 1851816185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Holbrook's specialty?
- Hannah Holbrook is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Hannah Holbrook located?
- Hannah Holbrook's practice location on file with NPPES is 1577 Congress St, Portland, ME 04102-2169.
- What is Hannah Holbrook's phone number?
- The practice phone number listed in the NPPES registry for Hannah Holbrook is (207) 662-5522.
- Does Hannah Holbrook accept Medicare?
- Hannah Holbrook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Holbrook's NPI active?
- Yes — Hannah Holbrook's NPI (1851816185) is active in the NPPES registry as of the last update on 2024-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.