DR. ONAN WALKER BOMAR IV M.D.
NPI 1740445543
Internal Medicine in Richmond, VA
About Dr. Onan Walker Bomar Iv M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ONAN WALKER BOMAR IV M.D. (NPI 1740445543) is an individual internal medicine provider in Richmond, Virginia, licensed in Virginia (0101255432) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Onan Walker Bomar Iv M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Onan Bomar reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fredericksburg, VA 22401
- Reassigned Medicare billing, Virginia enrollment
- 258 clinicians in this Medicare group
Fredericksburg, VA 22401
- Reassigned Medicare billing, Virginia enrollment
- 547 clinicians in this Medicare group
Winchester, VA 22601
- Reassigned Medicare billing, Virginia enrollment
- 371 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 23223 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
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RICHMOND, VA 23223
RICHMOND, VA 23223
RICHMOND, VA 23223
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 Onan Bomar's NPI number?
The NPI number for Onan Bomar is 1740445543. It was assigned to this individual provider in the NPPES registry on July 22, 2008.
Where is Onan Bomar located?
Onan Bomar practices at 3806 Mechanicsville Tpke, Richmond, VA 23223. The listed phone number is (804) 228-1143.
What is Onan Bomar's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Onan Bomar enrolled in Medicare?
Yes. Onan Bomar is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Onan Bomar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Onan Bomar reassigns Medicare benefits to 3 organizations: Hospitalist Medicine Physicians Of Fredericksburg, LLC (Fredericksburg, VA), Mary Washington Healthcare Physicians (Fredericksburg, VA) and Hospitalist Medicine Physicians Of Virginia LLC (Winchester, 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 Onan Bomar'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 Onan Bomar was last updated on March 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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. Onan Walker Bomar IV, M.D. · NPI 1740445543
Internal Medicine physician in Richmond, Virginia. Individual provider, active in the CMS NPPES registry since July 22, 2008.
## Identity
- **NPI:** 1740445543 (Entity type: Individual)
- **Enumerated:** July 22, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 0101255432 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3806 MECHANICSVILLE TPKE, Richmond, VA 23223-1114
- **Phone:** (804) 228-1143
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Hospitalist Medicine Physicians Of Fredericksburg, LLC (NPI 1447577572, Fredericksburg, VA); Mary Washington Healthcare Physicians (NPI 1295999852, Fredericksburg, VA); Hospitalist Medicine Physicians Of Virginia LLC (NPI 1770756991, Winchester, VA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 25, 2026
- **Other identifiers:** Other VAD000 (TN)
---
Source: [NPI Profile](https://npiprofile.com/npi/1740445543) · Data from the CMS NPPES public registry.