PRIME HEALTH
NPI 1902067655
Clinic/Center - Primary Care in Herndon, VA
About Prime Health NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PRIME HEALTH (NPI 1902067655) is a healthcare organization registered as a primary care in Herndon, Virginia and active in the NPI registry since June 2008. The organization lists Han Tonthat, Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 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)
Prime Health 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 Prime Health, 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 4H Medical LLC's NPI number?
The NPI number for 4H Medical LLC is 1902067655. It was assigned to this organization in the NPPES registry on June 24, 2008. The provider is doing business as Prime Health.
Where is 4H Medical LLC located?
4H Medical LLC is located at 1035 Sterling Rd Ste 104, Herndon, VA 20170. The listed phone number is (703) 840-0610.
What is 4H Medical LLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is 4H Medical LLC enrolled in Medicare?
Yes. 4H Medical LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through 4H Medical LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to 4H Medical LLC. 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 4H Medical LLC was last updated on September 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Prime Health · NPI 1902067655
Primary Care organization in Herndon, Virginia. Organization record, active in the CMS NPPES registry since June 24, 2008.
## Identity
- **NPI:** 1902067655 (Entity type: Organization)
- **Enumerated:** June 24, 2008
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Legal business name:** 4h Medical Llc
- **Organization subpart:** No
- **Authorized official:** Han Tonthat, OFFICER
## Practice location
- **Address:** 1035 STERLING RD STE 104, Herndon, VA 20170-3838
- **Phone:** (703) 840-0610 · **Fax:** (571) 323-3243
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1902067655) · Data from the CMS NPPES public registry.