GARY A HAAG DO
NPI 1801868237
Anesthesiology in Winchester, VA
About Gary A Haag Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GARY A HAAG DO (NPI 1801868237) is an individual anesthesiology provider in Winchester, Virginia, licensed in Maryland (H38515) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gary A Haag Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
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 Gary Haag's NPI number?
The NPI number for Gary Haag is 1801868237. It was assigned to this individual provider in the NPPES registry on February 1, 2006.
Where is Gary Haag located?
Gary Haag practices at 1840 Amherst St, Winchester, VA 22603. The listed phone number is (540) 536-8000.
What is Gary Haag's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Gary Haag enrolled in Medicare?
Yes. Gary Haag is registered in the Medicare PECOS enrollment system.
What insurance does Gary Haag accept?
Health plans from Blue Cross and Blue Shield of Texas list Gary Haag as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gary Haag was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.