DR. STEVEN LAWRENCE GRENELL M.D.
NPI 1831115872
Psychiatry & Neurology - Neurology in New York, NY
About Dr. Steven Lawrence Grenell M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN LAWRENCE GRENELL M.D. (NPI 1831115872) is an individual neurology provider in New York, New York, licensed in New York (152900) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and maintains a secondary practice location in Bronx.
NPPES Registry Identity
Specialties & Licenses
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)
Dr. Steven Lawrence Grenell M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Steven Grenell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Lee, NJ 07024
- Reassigned Medicare billing, New York enrollment
- 1,048 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
Bronxville, NY 10708
- Reassigned Medicare billing, New York enrollment
- 531 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 3
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.
Montefiore Medical Center
Acute Care Hospitals · Bronx, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10032 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.
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
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 Steven Grenell's NPI number?
The NPI number for Steven Grenell is 1831115872. It was assigned to this individual provider in the NPPES registry on July 14, 2006.
Where is Steven Grenell located?
Steven Grenell practices at 622 W 168th St, New York, NY 10032. The listed phone number is (646) 426-3876.
What is Steven Grenell's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Steven Grenell enrolled in Medicare?
Yes. Steven Grenell is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Steven Grenell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Grenell reassigns Medicare benefits to 3 organizations: Trustees Of Columbia University In The City Of New York (Fort Lee, NJ), Montefiore Medical Center (New York, NY) and Lawrence Medical Associates, PC (Bronxville, NY). 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 Steven Grenell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Steven Grenell affiliated with any hospitals?
According to CMS data, Steven Grenell is affiliated with Montefiore Medical Center.
When was this NPI record last updated?
The NPPES record for Steven Grenell was last updated on February 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Steven Lawrence Grenell, M.D. · NPI 1831115872
Neurology physician in New York, New York. Individual provider, active in the CMS NPPES registry since July 14, 2006.
## Identity
- **NPI:** 1831115872 (Entity type: Individual)
- **Enumerated:** July 14, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 152900 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 622 W 168TH ST, New York, NY 10032-3720
- **Phone:** (646) 426-3876 · **Fax:** (212) 305-5530
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1982993184, Fort Lee, NJ); Montefiore Medical Center (NPI 1760288278, New York, NY); Lawrence Medical Associates, PC (NPI 1497260806, Bronxville, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1977
## Record status
- **NPPES last updated:** February 12, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1831115872) · Data from the CMS NPPES public registry.