ALAYNA A SIZEMORE APRN
NPI 1144943119
Nurse Practitioner - Family in Rockville, MD
About Alayna A Sizemore Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALAYNA A SIZEMORE APRN (NPI 1144943119) is an individual family provider in Rockville, Maryland, licensed in Kentucky (3018343) and active in the NPI registry since September 2022. She is enrolled in Medicare PECOS, is affiliated with Baptist Health Louisville, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
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
Alayna A Sizemore Aprn 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 Alayna Sizemore reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Silver Spring, MD 20910
- Reassigned Medicare billing, District of Columbia enrollment
- 27 clinicians in this Medicare group
Louisville, KY 40299
- Reassigned Medicare billing, Indiana enrollment
- 532 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 6
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.
Baptist Health Louisville
Acute Care Hospitals · Louisville, KYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20854 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.
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 Alayna Sizemore's NPI number?
The NPI number for Alayna Sizemore is 1144943119. It was assigned to this individual provider in the NPPES registry on September 23, 2022.
Where is Alayna Sizemore located?
Alayna Sizemore practices at 1201 Seven Locks Rd Ste 100, Rockville, MD 20854. The listed phone number is (301) 562-7200.
What is Alayna Sizemore's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Alayna Sizemore enrolled in Medicare?
Yes. Alayna Sizemore 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 Alayna Sizemore's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alayna Sizemore reassigns Medicare benefits to 2 organizations: The Neurology Center (Silver Spring, MD) and Baptist Health Medical Group Inc (Louisville, KY). 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 Alayna Sizemore's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alayna Sizemore accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Anthem Blue Cross and Blue Shield list Alayna Sizemore 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 Alayna Sizemore affiliated with any hospitals?
According to CMS data, Alayna Sizemore is affiliated with Baptist Health Louisville.
When was this NPI record last updated?
The NPPES record for Alayna Sizemore was last updated on December 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Alayna A Sizemore, APRN · NPI 1144943119
Family physician in Rockville, Maryland. Individual provider, active in the CMS NPPES registry since September 23, 2022.
## Identity
- **NPI:** 1144943119 (Entity type: Individual)
- **Enumerated:** September 23, 2022
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 3018343 (Kentucky)
- **Sole proprietor:** No
## Practice location
- **Address:** 1201 SEVEN LOCKS RD STE 100, Rockville, MD 20854-2961
- **Phone:** (301) 562-7200
## 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): The Neurology Center (NPI 1598737751, Silver Spring, MD); Baptist Health Medical Group Inc (NPI 1508269200, Louisville, KY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** December 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1144943119) · Data from the CMS NPPES public registry.