IndividualActive
David Lyman, PHD
NPI 1891989364 · Psychologist · Cambridge, MA
David Lyman, PHD is a Psychologist provider in Cambridge, MA (NPI 1891989364).
Provider details
- NPI number
- 1891989364
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 4240 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
5 Sacramento St
Guidance Center Inc
Cambridge, MA 02138
Phone: (617) 354-2275
Fax: (617) 547-4355
Street-level locationGet directions
Mailing address
65 Gay St
Needham, MA 02492
Registry dates
- Enumerated
- 2007-08-28
- Last updated
- 2007-08-28
Frequently asked questions
- What is David Lyman's NPI number?
- David Lyman's National Provider Identifier (NPI) is 1891989364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Lyman's specialty?
- David Lyman is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is David Lyman located?
- David Lyman's practice location on file with NPPES is 5 Sacramento St, Cambridge, MA 02138.
- What is David Lyman's phone number?
- The practice phone number listed in the NPPES registry for David Lyman is (617) 354-2275.
- Is David Lyman's NPI active?
- Yes — David Lyman's NPI (1891989364) is active in the NPPES registry as of the last update on 2007-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.