ALLISON CAROLINE MAYHEW M.D.
NPI 1659766111
Obstetrics & Gynecology in Fairfax, VA
About Allison Caroline Mayhew M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON CAROLINE MAYHEW M.D. (NPI 1659766111) is an individual obstetrics & gynecology provider in Fairfax, Virginia, licensed in Virginia (0101272608) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Allison Caroline Mayhew M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Allison Mayhew reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfax, VA 22031
- Reassigned Medicare billing, District of Columbia enrollment
- 128 clinicians in this Medicare group
Fairfax, VA 22031
- Reassigned Medicare billing, District of Columbia enrollment
- 2,618 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 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 22031 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FAIRFAX, VA 22031
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 Allison Mayhew's NPI number?
The NPI number for Allison Mayhew is 1659766111. It was assigned to this individual provider in the NPPES registry on April 1, 2015.
Where is Allison Mayhew located?
Allison Mayhew practices at 3023 Hamaker Ct Ste 200, Fairfax, VA 22031. The listed phone number is (404) 251-8812.
What is Allison Mayhew's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Allison Mayhew enrolled in Medicare?
Yes. Allison Mayhew is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Allison Mayhew's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Mayhew reassigns Medicare benefits to 3 organizations: Pediatric Specialists Of Virginia, LLC (Fairfax, VA), Inova Health Care Services (Fairfax, VA) and Children's Hospital (Washington, DC). 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 Allison Mayhew'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 Allison Mayhew was last updated on September 1, 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.