John Massimino, M.D.
NPI 1720282239 · Clinical Psychologist · Laguna Niguel, CA
John Massimino, M.D. is a Clinical Psychologist provider in Laguna Niguel, CA (NPI 1720282239).
Provider details
- NPI number
- 1720282239
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A-36137 (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
- 2007-06-11
- Last updated
- 2008-04-18
Frequently asked questions
- What is John Massimino's NPI number?
- John Massimino's National Provider Identifier (NPI) is 1720282239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Massimino's specialty?
- John Massimino is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Massimino located?
- John Massimino's practice location on file with NPPES is 30262 Crown Valley Pkwy, Laguna Niguel, CA 92677-2364.
- What is John Massimino's phone number?
- The practice phone number listed in the NPPES registry for John Massimino is (949) 413-7315.
- Is John Massimino's NPI active?
- Yes — John Massimino's NPI (1720282239) is active in the NPPES registry as of the last update on 2008-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.