FAIRFAX INTERNAL MEDICINE ASSOCIATES, PC
NPI 1790987352
Internal Medicine in Vienna, VA
About Fairfax Internal Medicine Associates, Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FAIRFAX INTERNAL MEDICINE ASSOCIATES, PC (NPI 1790987352) is a healthcare organization registered as an internal medicine in Vienna, Virginia and active in the NPI registry since June 2007. The organization lists Parham Haghighi, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Fairfax Internal Medicine Associates, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by October 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
19Medicare enrollment records show 19 clinicians reassign Medicare billing to Fairfax Internal Medicine Associates, PC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (19)
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 Fairfax Internal Medicine Associates, PC's NPI number?
The NPI number for Fairfax Internal Medicine Associates, PC is 1790987352. It was assigned to this organization in the NPPES registry on June 4, 2007.
Where is Fairfax Internal Medicine Associates, PC located?
Fairfax Internal Medicine Associates, PC is located at 8302 Old Courthouse Rd Ste C, Vienna, VA 22182. The listed phone number is (703) 462-8138.
What is Fairfax Internal Medicine Associates, PC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Fairfax Internal Medicine Associates, PC enrolled in Medicare?
Yes. Fairfax Internal Medicine Associates, PC is registered in the Medicare PECOS enrollment system.
When is Fairfax Internal Medicine Associates, PC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (District of Columbia, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Fairfax Internal Medicine Associates, PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 19 clinicians in 4 Medicare specialties reassign their Medicare billing to Fairfax Internal Medicine Associates, 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. The largest specialties are Nurse Practitioner (7), Internal Medicine (6) and Hospitalist (5). Of these, 2 practice at this address and 9 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 Fairfax Internal Medicine Associates, PC was last updated on April 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Fairfax Internal Medicine Associates, Pc · NPI 1790987352
Internal Medicine organization in Vienna, Virginia. Organization record, active in the CMS NPPES registry since June 4, 2007.
## Identity
- **NPI:** 1790987352 (Entity type: Organization)
- **Enumerated:** June 4, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Parham Haghighi, PRESIDENT
## Practice location
- **Address:** 8302 OLD COURTHOUSE RD STE C, Vienna, VA 22182-3873
- **Phone:** (703) 462-8138
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, District of Columbia, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 19 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (7), Internal Medicine (6), Hospitalist (5); 2 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 6, 2012
- **Other identifiers:** Other G02651 (VA)
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Source: [NPI Profile](https://npiprofile.com/npi/1790987352) · Data from the CMS NPPES public registry.