Kathleen Longwell, PH.D.
NPI 1215962758 · Psychologist · Piedmont, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Longwell, PH.D. is a Psychologist provider in Piedmont, CA (NPI 1215962758).
Provider details
- NPI number
- 1215962758
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY13730 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2006-07-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Kathleen Longwell's NPI number?
- Kathleen Longwell's National Provider Identifier (NPI) is 1215962758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Longwell's specialty?
- Kathleen Longwell is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Kathleen Longwell located?
- Kathleen Longwell's practice location on file with NPPES is 75 Selborne Dr, Piedmont, CA 94611-3618.
- What is Kathleen Longwell's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Longwell is (510) 530-7300.
- Does Kathleen Longwell accept Medicare?
- Kathleen Longwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Longwell's NPI active?
- Yes — Kathleen Longwell's NPI (1215962758) 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.