Alison Tan, PHD
NPI 1962172593 · Psychologist · Carlsbad, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alison Tan, PHD is a Psychologist provider in Carlsbad, CA (NPI 1962172593).
Provider details
- NPI number
- 1962172593
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 32890 (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
4 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
2,001 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) |
|---|---|---|
| Psychotherapy, 30 Minutes90832 | 1,052 | $70 |
| Psychotherapy, 30 Minutes90832 | 441 | $82 |
| Psychotherapy, 45 Minutes90834 | 164 | $93 |
| Psychiatric Diagnostic Evaluation90791 | 146 | $152 |
| Psychiatric Services Complicated By Communication Factor90785 | 131 | $13 |
| Psychiatric Services Complicated By Communication Factor90785 | 46 | $15 |
| Psychiatric Diagnostic Evaluation90791 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-09-15
- Last updated
- 2023-08-25
- Certified
- 2023-08-11
Frequently asked questions
- What is Alison Tan's NPI number?
- Alison Tan's National Provider Identifier (NPI) is 1962172593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alison Tan's specialty?
- Alison Tan is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Alison Tan located?
- Alison Tan's practice location on file with NPPES is 5838 Edison Pl Ste 100, Carlsbad, CA 92008-5520.
- What is Alison Tan's phone number?
- The practice phone number listed in the NPPES registry for Alison Tan is (215) 344-8187.
- Does Alison Tan accept Medicare?
- Alison Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alison Tan's NPI active?
- Yes — Alison Tan's NPI (1962172593) is active in the NPPES registry as of the last update on 2023-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.