ALISON G. TAN PHD
NPI 1962172593
Psychologist in Carlsbad, CA
About Alison G. Tan Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON G. TAN PHD (NPI 1962172593) is an individual psychologist in Carlsbad, California, licensed in California (32890) and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Alison G. Tan Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Alison Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carlsbad, CA 92008
- Reassigned Medicare billing, California enrollment
- 223 clinicians in this Medicare group
Santa Clara, CA 95054
- Reassigned Medicare billing, California enrollment
- 1,607 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CARLSBAD, CA 92008
CARLSBAD, CA 92008
CARLSBAD, CA 92008
CARLSBAD, CA 92008
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Alison Tan's NPI number?
The NPI number for Alison Tan is 1962172593. It was assigned to this individual provider in the NPPES registry on September 15, 2021.
Where is Alison Tan located?
Alison Tan practices at 5838 Edison Pl Ste 100, Carlsbad, CA 92008. The listed phone number is (215) 344-8187.
What is Alison Tan's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Alison Tan enrolled in Medicare?
Yes. Alison Tan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Alison Tan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Tan reassigns Medicare benefits to 2 organizations: Memory Check Psychological Services, A Professional Corporation (Carlsbad, CA) and Sud Specialty Group - Ca (Santa Clara, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alison Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Alison Tan was last updated on August 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.