WATERSIDE PSYCHOLOGY PC
NPI 1013735174
Clinic/Center - Mental Health (Including Community Mental Health Center) in Los Angeles, CA
About Waterside Psychology Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WATERSIDE PSYCHOLOGY PC (NPI 1013735174) is a healthcare organization registered as a mental health (including community mental health center) in Los Angeles, California and active in the NPI registry since September 2024. The organization lists Mark Papp, Clinical Psychologist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Waterside Psychology Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Waterside Psychology PC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Waterside Psychology PC's NPI number?
The NPI number for Waterside Psychology PC is 1013735174. It was assigned to this organization in the NPPES registry on September 27, 2024.
Where is Waterside Psychology PC located?
Waterside Psychology PC is located at 3353 Shelby Dr Apt 206, Los Angeles, CA 90034. The listed phone number is (917) 770-6207.
What is Waterside Psychology PC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.
Is Waterside Psychology PC enrolled in Medicare?
Yes. Waterside Psychology PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Waterside Psychology PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Waterside Psychology PC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Waterside Psychology PC was last updated on September 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Waterside Psychology Pc · NPI 1013735174
Mental Health (Including Community Mental Health Center) organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since September 27, 2024.
## Identity
- **NPI:** 1013735174 (Entity type: Organization)
- **Enumerated:** September 27, 2024
- **Primary specialty:** Clinic/Center - Mental Health (Including Community Mental Health Center) · taxonomy 261QM0801X
- **Organization subpart:** No
- **Authorized official:** Mark Papp, CLINICAL PSYCHOLOGIST
## Practice location
- **Address:** 3353 SHELBY DR APT 206, Los Angeles, CA 90034-2777
- **Phone:** (917) 770-6207
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Psychologist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 27, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1013735174) · Data from the CMS NPPES public registry.