IndividualActive
Crystal Johnson, PSY.D.
NPI 1659870798 · Clinical Psychologist · Oak Park, IL
Crystal Johnson, PSY.D. is a Clinical Psychologist provider in Oak Park, IL (NPI 1659870798).
Provider details
- NPI number
- 1659870798
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 071.009543 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(68/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
715 Lake St
Oak Park, IL 60301-1422
Phone: (708) 209-8987
Fax: (708) 434-5586
Street-level locationGet directions
Mailing address
845 W Belmont Ave Apt 4
Chicago, IL 60657-4462
Registry dates
- Enumerated
- 2018-02-05
- Last updated
- 2018-02-05
Frequently asked questions
- What is Crystal Johnson's NPI number?
- Crystal Johnson's National Provider Identifier (NPI) is 1659870798, 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 Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Crystal Johnson located?
- Crystal Johnson's practice location on file with NPPES is 715 Lake St, Oak Park, IL 60301-1422.
- What is Crystal Johnson's phone number?
- The practice phone number listed in the NPPES registry for Crystal Johnson is (708) 209-8987.
- Is Crystal Johnson's NPI active?
- Yes — Crystal Johnson's NPI (1659870798) is active in the NPPES registry as of the last update on 2018-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.