ALISON HOLLER OT
NPI 1235715970
Occupational Therapist in Aberdeen, MD
About Alison Holler Ot NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON HOLLER OT (NPI 1235715970) is an individual occupational therapist in Aberdeen, Maryland, licensed in Maryland (09195) and active in the NPI registry since March 2021. She is a graduate of Other (2020).
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 and accepts Medicare assignment
Alison Holler Ot 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 Alison Holler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Timonium, MD 21093
- Reassigned Medicare billing, Maryland enrollment
- 118 clinicians in this Medicare group
Winchester, VA 22603
- Reassigned Medicare billing, District of Columbia enrollment
- 696 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.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alison Holler's NPI number?
The NPI number for Alison Holler is 1235715970. It was assigned to this individual provider in the NPPES registry on March 23, 2021.
Where is Alison Holler located?
Alison Holler practices at 998 Hospitality Way Ste 101, Aberdeen, MD 21001. The listed phone number is (410) 273-9776.
What is Alison Holler's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Alison Holler enrolled in Medicare?
Yes. Alison Holler 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 Alison Holler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Holler reassigns Medicare benefits to 2 organizations: Fox Rehab Ot MD LLC (Timonium, MD) and Fox Rehabilitation Services 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 Alison Holler'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 Alison Holler was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.