DR. JUSTIN MICHAEL CAPLAN M.D.
NPI 1124277272
Neurological Surgery in Baltimore, MD
About Dr. Justin Michael Caplan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JUSTIN MICHAEL CAPLAN M.D. (NPI 1124277272) is an individual neurological surgery provider in Baltimore, Maryland, licensed in Maryland (D76618) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Harvard Medical School (2009).
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 (PECOS)
Dr. Justin Michael Caplan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Justin Caplan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, District of Columbia enrollment
- 15 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 13
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21287 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.
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 Justin Caplan's NPI number?
The NPI number for Justin Caplan is 1124277272. It was assigned to this individual provider in the NPPES registry on September 13, 2008.
Where is Justin Caplan located?
Justin Caplan practices at 1800 Orleans St Zayed Tower, Room 6007, Baltimore, MD 21287. The listed phone number is (410) 955-6405.
What is Justin Caplan's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Justin Caplan enrolled in Medicare?
Yes. Justin Caplan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Justin Caplan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Caplan reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (Baltimore, MD). 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 Justin Caplan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Justin Caplan affiliated with any hospitals?
According to CMS data, Justin Caplan is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Justin Caplan was last updated on June 27, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.