DR. ALLAN J. MORRISON M.D.
NPI 1043266448
Internal Medicine - Infectious Disease in Annandale, VA
About Dr. Allan J. Morrison M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALLAN J. MORRISON M.D. (NPI 1043266448) is an individual infectious disease provider in Annandale, Virginia, licensed in Virginia (0101038950) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Allan J. Morrison M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Allan Morrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Annandale, VA 22003
- Reassigned Medicare billing, Virginia enrollment
- 15 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANNANDALE, VA 22003
ANNANDALE, VA 22003
ANNANDALE, VA 22003
ANNANDALE, VA 22003
ANNANDALE, VA 22003
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 Allan Morrison's NPI number?
The NPI number for Allan Morrison is 1043266448. It was assigned to this individual provider in the NPPES registry on May 26, 2006.
Where is Allan Morrison located?
Allan Morrison practices at 3289 Woodburn Rd Suite # 200, Annandale, VA 22003. The listed phone number is (703) 560-7900.
What is Allan Morrison's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Allan Morrison enrolled in Medicare?
Yes. Allan Morrison is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Allan Morrison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allan Morrison reassigns Medicare benefits to Infectious Diseases Physicians, Inc (Annandale, 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 Allan Morrison'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 Allan Morrison was last updated on August 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.