Brian Siembor, PH.D.
NPI 1447627195 · Clinical Psychologist · Boston, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Siembor, PH.D. is a Clinical Psychologist provider in Boston, MA (NPI 1447627195).
Provider details
- NPI number
- 1447627195
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 10784 (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
10 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
- 2015-08-28
- Last updated
- 2026-02-26
- Certified
- 2026-02-26
Frequently asked questions
- What is Brian Siembor's NPI number?
- Brian Siembor's National Provider Identifier (NPI) is 1447627195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Siembor's specialty?
- Brian Siembor is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Brian Siembor located?
- Brian Siembor's practice location on file with NPPES is 185 Devonshire St Ste 901, Boston, MA 02110-1485.
- What is Brian Siembor's phone number?
- The practice phone number listed in the NPPES registry for Brian Siembor is (617) 830-1780.
- Does Brian Siembor accept Medicare?
- Brian Siembor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Siembor's NPI active?
- Yes — Brian Siembor's NPI (1447627195) is active in the NPPES registry as of the last update on 2026-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.