Johanna Folk, PHD
NPI 1639690431 · Clinical Psychologist · San Francisco, CA
Johanna Folk, PHD is a Clinical Psychologist provider in San Francisco, CA (NPI 1639690431).
Provider details
- NPI number
- 1639690431
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
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
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
Mailing address
Registry dates
- Enumerated
- 2017-06-30
- Last updated
- 2020-01-31
- Certified
- 2020-01-31
Frequently asked questions
- What is Johanna Folk's NPI number?
- Johanna Folk's National Provider Identifier (NPI) is 1639690431, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johanna Folk's specialty?
- Johanna Folk is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Johanna Folk located?
- Johanna Folk's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Johanna Folk's phone number?
- The practice phone number listed in the NPPES registry for Johanna Folk is (628) 206-2309.
- Is Johanna Folk's NPI active?
- Yes — Johanna Folk's NPI (1639690431) is active in the NPPES registry as of the last update on 2020-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.