ALLISON MARIE MAYFIELD-VISI
NPI 1669949665
Nurse Practitioner - Acute Care in Baltimore, MD
About Allison Marie Mayfield-visi NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON MARIE MAYFIELD-VISI (NPI 1669949665) is an individual acute care provider in Baltimore, Maryland, licensed in Maryland (R229954) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Allison Marie Mayfield-visi is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Allison Mayfield-visi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 614 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 201 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 21201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 9
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Mayfield-visi's NPI number?
The NPI number for Allison Mayfield-visi is 1669949665. It was assigned to this individual provider in the NPPES registry on October 28, 2018.
Where is Allison Mayfield-visi located?
Allison Mayfield-visi practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-8667.
What is Allison Mayfield-visi's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Allison Mayfield-visi enrolled in Medicare?
Yes. Allison Mayfield-visi is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Allison Mayfield-visi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Mayfield-visi reassigns Medicare benefits to 2 organizations: University Of Maryland Physicians PA (Baltimore, MD) and University Of Maryland Surgical Associates, PA (Baltimore, MD). 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 Mayfield-visi'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 Mayfield-visi was last updated on December 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Allison Marie Mayfield-Visi · NPI 1669949665
Acute Care physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since October 28, 2018.
## Identity
- **NPI:** 1669949665 (Entity type: Individual)
- **Enumerated:** October 28, 2018
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** R229954 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST, Baltimore, MD 21201-1590
- **Phone:** (410) 328-8667
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Physicians PA (NPI 1144270687, Baltimore, MD); University Of Maryland Surgical Associates, PA (NPI 1962417634, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 10, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1669949665) · Data from the CMS NPPES public registry.