Katherine Possin, PH.D.
NPI 1275848251 · Clinical Psychologist · San Francisco, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Possin, PH.D. is a Clinical Psychologist provider in San Francisco, CA (NPI 1275848251).
Provider details
- NPI number
- 1275848251
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PSY 23543 (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 tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
235 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Evaluation of Neuropsychological Test, First Hour96132 | 57 | $115 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 57 | $82 |
| Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139 | 36 | $49 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 25 | $25 |
| Exam of Neurobehavioral Status, First Hour96116 | 23 | $87 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 19 | $47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-08-13
- Last updated
- 2010-08-13
Frequently asked questions
- What is Katherine Possin's NPI number?
- Katherine Possin's National Provider Identifier (NPI) is 1275848251, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Possin's specialty?
- Katherine Possin is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Katherine Possin located?
- Katherine Possin's practice location on file with NPPES is 350 Parnassus Ave., Ste 905, San Francisco, CA 94143-1207.
- What is Katherine Possin's phone number?
- The practice phone number listed in the NPPES registry for Katherine Possin is (415) 476-1889.
- Does Katherine Possin accept Medicare?
- Katherine Possin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Possin's NPI active?
- Yes — Katherine Possin's NPI (1275848251) is active in the NPPES registry as of the last update on 2010-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.