IndividualActive
Crystal Johnson, MS
NPI 1801109509 · Psychologist · Randolph, MA
Crystal Johnson, MS is a Psychologist provider in Randolph, MA (NPI 1801109509).
Provider details
- NPI number
- 1801109509
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- MS
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(77/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
500 N Main St
Randolph, MA 02368-6700
Phone: (617) 306-6828
Street-level locationGet directions
Mailing address
116 River St Apt 14
Mattapan, MA 02126-2944
Registry dates
- Enumerated
- 2010-07-22
- Last updated
- 2010-07-22
Frequently asked questions
- What is Crystal Johnson's NPI number?
- Crystal Johnson's National Provider Identifier (NPI) is 1801109509, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Johnson's specialty?
- Crystal Johnson is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Crystal Johnson located?
- Crystal Johnson's practice location on file with NPPES is 500 N Main St, Randolph, MA 02368-6700.
- What is Crystal Johnson's phone number?
- The practice phone number listed in the NPPES registry for Crystal Johnson is (617) 306-6828.
- Is Crystal Johnson's NPI active?
- Yes — Crystal Johnson's NPI (1801109509) is active in the NPPES registry as of the last update on 2010-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.