OVERHEAD SUN
NPI 1508677121
Internal Medicine in Los Angeles, CA
About Overhead Sun NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OVERHEAD SUN (NPI 1508677121) is a healthcare organization registered as an internal medicine in Los Angeles, California and active in the NPI registry since January 2025. The organization lists Hillary Mennella, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Other Names 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Overhead Sun is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Overhead Sun, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
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 Overhead Sun's NPI number?
The NPI number for Overhead Sun is 1508677121. It was assigned to this organization in the NPPES registry on January 14, 2025. The provider is doing business as Overhead Sun Mental Health.
Where is Overhead Sun located?
Overhead Sun is located at 4521 E Cesar E Chavez Ave, Los Angeles, CA 90022. The listed phone number is (562) 533-7373.
What is Overhead Sun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Overhead Sun enrolled in Medicare?
Yes. Overhead Sun is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Overhead Sun?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Overhead Sun, in Emergency Medicine and Nurse Practitioner. 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. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Overhead Sun was last updated on April 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Overhead Sun · NPI 1508677121
Internal Medicine organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since January 14, 2025.
## Identity
- **NPI:** 1508677121 (Entity type: Organization)
- **Enumerated:** January 14, 2025
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Also known as:** Overhead Sun (Doing Business As); Overhead Sun Mental Health (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Hillary Mennella, OWNER
## Practice location
- **Address:** 4521 E CESAR E CHAVEZ AVE, Los Angeles, CA 90022-1116
- **Phone:** (562) 533-7373
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Emergency Medicine (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1508677121) · Data from the CMS NPPES public registry.