SIENA HILLS PRIMARY CARE
NPI 1003903527
Internal Medicine in Henderson, NV
About Siena Hills Primary Care NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIENA HILLS PRIMARY CARE (NPI 1003903527) is a healthcare organization registered as an internal medicine in Henderson, Nevada and active in the NPI registry since October 2006. The organization lists Robert Charles Gong, Managing Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
Siena Hills Primary Care 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 Siena Hills Primary Care, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.
Clinicians, nearest first (3)
Henderson, NV 89052
Henderson, NV 89052
Henderson, NV 89052
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 Siena Hills Primary Care's NPI number?
The NPI number for Siena Hills Primary Care is 1003903527. It was assigned to this organization in the NPPES registry on October 6, 2006.
Where is Siena Hills Primary Care located?
Siena Hills Primary Care is located at 2789 Sunridge Heights Pkwy Suite 100, Henderson, NV 89052. The listed phone number is (702) 614-0850.
What is Siena Hills Primary Care's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Siena Hills Primary Care enrolled in Medicare?
Yes. Siena Hills Primary Care is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Siena Hills Primary Care?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Siena Hills Primary Care, in Family Practice and Internal Medicine. 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, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Siena Hills Primary Care was last updated on August 6, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Siena Hills Primary Care · NPI 1003903527
Internal Medicine organization in Henderson, Nevada. Organization record, active in the CMS NPPES registry since October 6, 2006.
## Identity
- **NPI:** 1003903527 (Entity type: Organization)
- **Enumerated:** October 6, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Robert Gong, MANAGING OWNER
## Practice location
- **Address:** 2789 SUNRIDGE HEIGHTS PKWY, SUITE 100, Henderson, NV 89052
- **Phone:** (702) 614-0850 · **Fax:** (702) 614-0798
## 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: Family Practice (2), Internal Medicine (1); 3 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 6, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1003903527) · Data from the CMS NPPES public registry.