DR. BILL DUANE ALEXANDER MD
NPI 1982744371
Anesthesiology in Annandale, VA
About Dr. Bill Duane Alexander Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BILL DUANE ALEXANDER MD (NPI 1982744371) is an individual anesthesiology provider in Annandale, Virginia, licensed in Virginia (0101255233) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2005).
NPPES Registry Identity
Specialties & Licenses
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. Bill Duane Alexander Md 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 Reassignment
Medicare enrollment records show Bill Alexander reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fairfax, VA 22033
- Reassigned Medicare billing, District of Columbia, Virginia and Maryland enrollments
- Also billed through NPI 1073678637 (District of Columbia), NPI 1972275196 (Virginia), NPI 1114677572 (Virginia), NPI 1578638425 (District of Columbia), NPI 1366781700 (District of Columbia), NPI 1497023188 (District of Columbia), NPI 1285752121 (Maryland), NPI 1942546486 (Maryland), NPI 1457023616 (Maryland)
- 2,492 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.
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 Bill Alexander's NPI number?
The NPI number for Bill Alexander is 1982744371. It was assigned to this individual provider in the NPPES registry on February 7, 2007.
Where is Bill Alexander located?
Bill Alexander practices at 3720 Linda Ln, Annandale, VA 22003. The listed phone number is (619) 433-4123.
What is Bill Alexander's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Bill Alexander enrolled in Medicare?
Yes. Bill Alexander 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 organization bills Medicare for Bill Alexander's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Bill Alexander reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Fairfax, VA). The 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 Bill Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Bill Alexander was last updated on May 28, 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.