MS. MACKENZIE SUE SOMMERHALDER PHD
NPI 1740735489
Psychologist in Baltimore, MD
About Ms. Mackenzie Sue Sommerhalder Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MACKENZIE SUE SOMMERHALDER PHD (NPI 1740735489) is an individual psychologist in Baltimore, Maryland, licensed in Maryland (06284) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Lincoln.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Mackenzie Sue Sommerhalder Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mackenzie Sommerhalder reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21287
BALTIMORE, MD 21287
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 Mackenzie Sommerhalder's NPI number?
The NPI number for Mackenzie Sommerhalder is 1740735489. It was assigned to this individual provider in the NPPES registry on August 23, 2016.
Where is Mackenzie Sommerhalder located?
Mackenzie Sommerhalder practices at 1800 Orleans St, Baltimore, MD 21287. The listed phone number is (410) 614-2401.
What is Mackenzie Sommerhalder's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Mackenzie Sommerhalder enrolled in Medicare?
Yes. Mackenzie Sommerhalder is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mackenzie Sommerhalder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Sommerhalder reassigns Medicare benefits to Johns Hopkins University (Baltimore, MD). 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 Mackenzie Sommerhalder'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 Mackenzie Sommerhalder was last updated on May 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.