Larry Bayer, PH.D.
NPI 1821153578 · Psychologist · Boston, MA
Larry Bayer, PH.D. is a Psychologist provider in Boston, MA (NPI 1821153578).
Provider details
- NPI number
- 1821153578
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3435 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
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
- 2006-12-23
- Last updated
- 2025-09-11
Frequently asked questions
- What is Larry Bayer's NPI number?
- Larry Bayer's National Provider Identifier (NPI) is 1821153578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Bayer's specialty?
- Larry Bayer is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Larry Bayer located?
- Larry Bayer's practice location on file with NPPES is 150 Newbury St, Boston, MA 02116-2809.
- What is Larry Bayer's phone number?
- The practice phone number listed in the NPPES registry for Larry Bayer is (617) 635-9989.
- Is Larry Bayer's NPI active?
- Yes — Larry Bayer's NPI (1821153578) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.