DR. TROY W BAKER D.O.
NPI 1023164910
Allergy & Immunology in Mc Lean, VA
About Dr. Troy W Baker D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TROY W BAKER D.O. (NPI 1023164910) is an individual allergy & immunology provider in Mc Lean, Virginia, licensed in Virginia (0102204034) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses 3
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. Troy W Baker D.o. 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
2Medicare enrollment records show Troy Baker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mc Lean, VA 22102
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- Also billed through NPI 1699893537 (Virginia)
- 2,492 clinicians in this Medicare group
Roanoke, VA 24016
- Reassigned Medicare billing, Virginia enrollment
- 11 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.
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.
MC LEAN, VA 22102
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 Troy Baker's NPI number?
The NPI number for Troy Baker is 1023164910. It was assigned to this individual provider in the NPPES registry on January 25, 2007.
Where is Troy Baker located?
Troy Baker practices at 8008 Westpark Dr, Mc Lean, VA 22102. The listed phone number is (703) 287-6559.
What is Troy Baker's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Troy Baker enrolled in Medicare?
Yes. Troy Baker 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 Troy Baker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Troy Baker reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Mc Lean, VA) and Allergy & Immunology, Plc (Roanoke, 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 Troy Baker'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 Troy Baker was last updated on June 8, 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.
# Dr. Troy W Baker, D.O. · NPI 1023164910
Allergy & Immunology physician in Mc Lean, Virginia. Individual provider, active in the CMS NPPES registry since January 25, 2007.
## Identity
- **NPI:** 1023164910 (Entity type: Individual)
- **Enumerated:** January 25, 2007
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** 0102204034 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8008 WESTPARK DR, Mc Lean, VA 22102-3109
- **Phone:** (703) 287-6559
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1376815472, Mc Lean, VA); Allergy & Immunology, Plc (NPI 1457423550, Roanoke, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** June 8, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1023164910) · Data from the CMS NPPES public registry.