MARY SHAFFER KESZLER M.D.
NPI 1245673391
Physical Medicine & Rehabilitation in Columbia, MD
About Mary Shaffer Keszler M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY SHAFFER KESZLER M.D. (NPI 1245673391) is an individual physical medicine & rehabilitation provider in Columbia, Maryland, licensed in Maryland (D0083414) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS and maintains a secondary practice location in Philadelphia.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
Mary Shaffer Keszler M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mary Keszler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Columbia, MD 21044
- 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.
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.
Referred Medical Equipment & Supplies CMS DME claims 5
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.
COLUMBIA, MD 21044
COLUMBIA, MD 21044
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 Mary Keszler's NPI number?
The NPI number for Mary Keszler is 1245673391. It was assigned to this individual provider in the NPPES registry on April 9, 2013. The provider is also known as Mary Catherine Shaffer M.D..
Where is Mary Keszler located?
Mary Keszler practices at 10700 Charter Dr Ste 205, Columbia, MD 21044. The listed phone number is (410) 550-5146.
What is Mary Keszler's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Mary Keszler enrolled in Medicare?
Yes. Mary Keszler is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mary Keszler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Keszler reassigns Medicare benefits to Johns Hopkins University (Columbia, 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 Mary Keszler'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 Mary Keszler was last updated on December 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.