MR. STEPHEN ELLIOT GRILL MD PHD
NPI 1023129269
Psychiatry & Neurology - Neurology in Elkridge, MD
About Mr. Stephen Elliot Grill Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. STEPHEN ELLIOT GRILL MD PHD (NPI 1023129269) is an individual neurology provider in Elkridge, Maryland, licensed in Maryland (D0041697) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Northwestern University Feinberg Medical School (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Mr. Stephen Elliot Grill Md Phd 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 Stephen Grill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbia, MD 21044
- Reassigned Medicare billing, Maryland enrollment
- 95 clinicians in this Medicare group
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.
Areas of Expertise CMS Part B claims 12
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.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21075 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ELKRIDGE, MD 21075
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 Stephen Grill's NPI number?
The NPI number for Stephen Grill is 1023129269. It was assigned to this individual provider in the NPPES registry on August 31, 2006.
Where is Stephen Grill located?
Stephen Grill practices at 8180 Lark Brown Rd Suite 101, Elkridge, MD 21075. The listed phone number is (443) 755-0030.
What is Stephen Grill's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Stephen Grill enrolled in Medicare?
Yes. Stephen Grill 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 Stephen Grill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Grill reassigns Medicare benefits to 2 organizations: Johns Hopkins Regional Physicians LLC (Columbia, MD) and Johns Hopkins University (Columbia, 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 Stephen Grill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Stephen Grill affiliated with any hospitals?
According to CMS data, Stephen Grill is affiliated with Johns Hopkins Hospital, The.
When was this NPI record last updated?
The NPPES record for Stephen Grill was last updated on April 9, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.