Margaret Guyer, PHD
NPI 1023163318 · Clinical Psychologist · Brookline, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Guyer, PHD is a Clinical Psychologist provider in Brookline, MA (NPI 1023163318).
Provider details
- NPI number
- 1023163318
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 8268 (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
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
- 2007-01-24
- Last updated
- 2016-02-15
Frequently asked questions
- What is Margaret Guyer's NPI number?
- Margaret Guyer's National Provider Identifier (NPI) is 1023163318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Guyer's specialty?
- Margaret Guyer is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Margaret Guyer located?
- Margaret Guyer's practice location on file with NPPES is 1101 Beacon St, Brookline, MA 02446-5587.
- What is Margaret Guyer's phone number?
- The practice phone number listed in the NPPES registry for Margaret Guyer is (617) 262-7600.
- Does Margaret Guyer accept Medicare?
- Margaret Guyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Guyer's NPI active?
- Yes — Margaret Guyer's NPI (1023163318) is active in the NPPES registry as of the last update on 2016-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.