ONI JAHI BLACKSTOCK M.D.
NPI 1548402225
Internal Medicine in Bronx, NY
About Oni Jahi Blackstock M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ONI JAHI BLACKSTOCK M.D. (NPI 1548402225) is an individual internal medicine provider in Bronx, New York, licensed in New York (249014) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS.
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)
Oni Jahi Blackstock M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Oni Blackstock 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 10037
- Reassigned Medicare billing, New York enrollment
- 676 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10451 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BRONX, NY 10451
BRONX, NY 10451
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 Oni Blackstock's NPI number?
The NPI number for Oni Blackstock is 1548402225. It was assigned to this individual provider in the NPPES registry on March 27, 2009.
Where is Oni Blackstock located?
Oni Blackstock practices at 305 E 161st St, Bronx, NY 10451. The listed phone number is (718) 579-2500.
What is Oni Blackstock's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Oni Blackstock enrolled in Medicare?
Yes. Oni Blackstock is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Oni Blackstock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Oni Blackstock reassigns Medicare benefits to 2 organizations: Harlem Medical Associates PC (New York, NY) and Montefiore Medical Center (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 Oni Blackstock'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 Oni Blackstock was last updated on May 25, 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.
# Oni Jahi Blackstock, M.D. · NPI 1548402225
Internal Medicine physician in Bronx, New York. Individual provider, active in the CMS NPPES registry since March 27, 2009.
## Identity
- **NPI:** 1548402225 (Entity type: Individual)
- **Enumerated:** March 27, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 249014 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 305 E 161ST ST, Bronx, NY 10451-3535
- **Phone:** (718) 579-2500
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Harlem Medical Associates PC (NPI 1487957692, New York, NY); Montefiore Medical Center (NPI 1760288278, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 25, 2012
---
Source: [NPI Profile](https://npiprofile.com/npi/1548402225) · Data from the CMS NPPES public registry.