GREGORY SEAN PANICCIA M.D.
NPI 1518022920
Psychiatry & Neurology - Psychiatry in National City, CA
About Gregory Sean Paniccia M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY SEAN PANICCIA M.D. (NPI 1518022920) is an individual psychiatry provider in National City, California, licensed in California (G76979) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Chicago, Pritzker School Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Group Practice 1
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
Gregory Sean Paniccia M.d. 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 Gregory Paniccia reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
National City, CA 91950
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
National City, CA 91950
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Pacific Health Systems LP
- 18 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91950 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NATIONAL CITY, CA 91950
NATIONAL CITY, CA 91950
NATIONAL CITY, CA 91950
NATIONAL CITY, CA 91950
NATIONAL CITY, CA 91950
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 Gregory Paniccia's NPI number?
The NPI number for Gregory Paniccia is 1518022920. It was assigned to this individual provider in the NPPES registry on December 26, 2006.
Where is Gregory Paniccia located?
Gregory Paniccia practices at 610 Euclid Ave Ste 200, National City, CA 91950. The listed phone number is (619) 267-9257.
What is Gregory Paniccia's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Gregory Paniccia enrolled in Medicare?
Yes. Gregory Paniccia 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 Gregory Paniccia's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Paniccia reassigns Medicare benefits to 2 organizations: Advanced Tms Clinic Inc (National City, CA) and Pacific Health Systems, L.P. (National City, 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 Gregory Paniccia'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 Gregory Paniccia was last updated on October 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.