DR. STEVEN LEE MACKEY M.D.
NPI 1700984648
Internal Medicine in New York, NY
About Dr. Steven Lee Mackey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN LEE MACKEY M.D. (NPI 1700984648) is an individual internal medicine provider in New York, New York, licensed in New York (172793) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Columbia University College Of Physicians And Surgeons (1985).
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
Dr. Steven Lee Mackey M.d. 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 Steven Mackey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 612 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1982993184 (New York)
- 3,922 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
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.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, 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.
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 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 Mackey's NPI number?
The NPI number for Steven Mackey is 1700984648. It was assigned to this individual provider in the NPPES registry on September 21, 2006.
Where is Steven Mackey located?
Steven Mackey practices at 622 W 168th St, New York, NY 10032. The listed phone number is (212) 035-5138.
What is Steven Mackey's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Steven Mackey enrolled in Medicare?
Yes. Steven Mackey 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 Steven Mackey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Mackey reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and Trustees Of Columbia University In The City Of New York (New York, 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 Mackey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Steven Mackey affiliated with any hospitals?
According to CMS data, Steven Mackey is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Steven Mackey was last updated on August 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 Lee Mackey, M.D. · NPI 1700984648
Internal Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since September 21, 2006.
## Identity
- **NPI:** 1700984648 (Entity type: Individual)
- **Enumerated:** September 21, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 172793 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 622 W 168TH ST, New York, NY 10032-3720
- **Phone:** (212) 035-5138
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1437176047, New York, NY); Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1985
## Record status
- **NPPES last updated:** August 21, 2012
- **Other identifiers:** Medicare ID-Type Unspecified 58N021 (NY); Medicaid 01749471 (NY); Medicare UPIN G96236 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1700984648) · Data from the CMS NPPES public registry.