DR. JAMES E LONG M.D.
NPI 1164485488
Internal Medicine in Fairfax, VA
About Dr. James E Long M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES E LONG M.D. (NPI 1164485488) is an individual internal medicine provider in Fairfax, Virginia, licensed in Virginia (0101059000) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through June 4, 2027, and is affiliated with Inova Alexandria Hospital.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. James E Long M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show James Long reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfax, VA 22031
- Reassigned Medicare billing, District of Columbia enrollment
Falls Church, VA 22042
- Reassigned Medicare billing, Virginia enrollment
- 2,379 clinicians in this Medicare group
Arlington, VA 22203
- Reassigned Medicare billing, Virginia enrollment
- 1,315 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 49D2131676
James E Long, PC · Fairfax, VAAreas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Inova Alexandria Hospital
Acute Care Hospitals · Alexandria, VAVirginia Hospital Center
Acute Care Hospitals · Arlington, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22031 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 James Long's NPI number?
The NPI number for James Long is 1164485488. It was assigned to this individual provider in the NPPES registry on April 8, 2006.
Where is James Long located?
James Long practices at 8316 Arlington Blvd Ste 650, Fairfax, VA 22031. The listed phone number is (703) 888-2565.
What is James Long's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is James Long enrolled in Medicare?
Yes. James Long is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for James Long's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Long reassigns Medicare benefits to 3 organizations: James E Long, MD, PC (Fairfax, VA), Inova Health Care Services (Falls Church, VA) and Privia Medical Group, LLC (Arlington, VA). Each 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 James Long's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does James Long hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 49D2131676) is associated with this NPI, valid through June 4, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
Is James Long affiliated with any hospitals?
According to CMS data, James Long is affiliated with Inova Alexandria Hospital and Virginia Hospital Center.
When was this NPI record last updated?
The NPPES record for James Long was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.