Ralph Lamson, PH.D.
NPI 1285770172 · Addiction (Substance Use Disorder) Psychologist · San Rafael, CA
Ralph Lamson, PH.D. is a Addiction (Substance Use Disorder) Psychologist provider in San Rafael, CA (NPI 1285770172).
Provider details
- NPI number
- 1285770172
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PSY12671 (CA)
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
- 2007-01-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ralph Lamson's NPI number?
- Ralph Lamson's National Provider Identifier (NPI) is 1285770172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Lamson's specialty?
- Ralph Lamson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Psychologist (Behavioral Health & Social Service Providers).
- Where is Ralph Lamson located?
- Ralph Lamson's practice location on file with NPPES is 820 Las Gallinas Ave, San Rafael, CA 94903-3452.
- What is Ralph Lamson's phone number?
- The practice phone number listed in the NPPES registry for Ralph Lamson is (415) 444-3531.
- Is Ralph Lamson's NPI active?
- Yes — Ralph Lamson's NPI (1285770172) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.