MS. AYANNA D. WALKER MD
NPI 1093079865
Emergency Medicine in Kissimmee, FL
About Ms. Ayanna D. Walker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. AYANNA D. WALKER MD (NPI 1093079865) is an individual emergency medicine provider in Kissimmee, Florida, licensed in Florida (ME121053) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS, is affiliated with Hca Florida Osceola Hospital, and is a graduate of Morehouse School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Ms. Ayanna D. Walker Md 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 Reassignment
Medicare enrollment records show Ayanna Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Aventura, FL 33180
- Reassigned Medicare billing, Florida enrollment
- 1,912 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Florida Osceola Hospital
Acute Care Hospitals · Kissimmee, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 34741 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Ayanna Walker's NPI number?
The NPI number for Ayanna Walker is 1093079865. It was assigned to this individual provider in the NPPES registry on June 27, 2012.
Where is Ayanna Walker located?
Ayanna Walker practices at 700 W. Oak St, Kissimmee, FL 34741. The listed phone number is (407) 518-3553.
What is Ayanna Walker's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ayanna Walker enrolled in Medicare?
Yes. Ayanna Walker 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 organization bills Medicare for Ayanna Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ayanna Walker reassigns Medicare benefits to Emergency Medicine Services Of Fl, LLC (Aventura, FL). 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 Ayanna Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ayanna Walker accept?
Health plans from Oscar Health Maintenance Organization of Florida list Ayanna Walker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ayanna Walker affiliated with any hospitals?
According to CMS data, Ayanna Walker is affiliated with Hca Florida Osceola Hospital.
When was this NPI record last updated?
The NPPES record for Ayanna Walker was last updated on February 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Ms. Ayanna D. Walker, MD · NPI 1093079865
Emergency Medicine physician in Kissimmee, Florida. Individual provider, active in the CMS NPPES registry since June 27, 2012.
## Identity
- **NPI:** 1093079865 (Entity type: Individual)
- **Enumerated:** June 27, 2012
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** ME121053 (Florida)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 700 W. OAK ST, Kissimmee, FL 34741
- **Phone:** (407) 518-3553 · **Fax:** (407) 518-3636
## 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:** Emergency Medicine Services Of Fl, LLC (NPI 1043917180, Aventura, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Morehouse School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** February 28, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1093079865) · Data from the CMS NPPES public registry.