CHARLES UKACHUKWU NNADI MD
NPI 1154451441
Psychiatry & Neurology - Psychiatry in New York, NY
About Charles Ukachukwu Nnadi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES UKACHUKWU NNADI MD (NPI 1154451441) is an individual psychiatry provider in New York, New York, licensed in New York (223044) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Harlem Hospital Center, and is a graduate of Other (1983).
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 and accepts Medicare assignment
Charles Ukachukwu Nnadi Md 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 Charles Nnadi 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 10023
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Charles U Nnadi MD PC
New York, NY 10037
- Reassigned Medicare billing, New York enrollment
- 2,094 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Harlem Hospital Center
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10023 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10023
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 Charles Nnadi's NPI number?
The NPI number for Charles Nnadi is 1154451441. It was assigned to this individual provider in the NPPES registry on March 6, 2007.
Where is Charles Nnadi located?
Charles Nnadi practices at 146 Central Park W 1F, New York, NY 10023. The listed phone number is (212) 799-7111.
What is Charles Nnadi's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Charles Nnadi enrolled in Medicare?
Yes. Charles Nnadi 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 Charles Nnadi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Nnadi reassigns Medicare benefits to 2 organizations: Charles U. Nnadi, M.D; P.C. (New York, NY) and Physician Affiliate Group Of New York PC (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 Charles Nnadi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Charles Nnadi affiliated with any hospitals?
According to CMS data, Charles Nnadi is affiliated with Harlem Hospital Center.
When was this NPI record last updated?
The NPPES record for Charles Nnadi was last updated on May 17, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Charles Ukachukwu Nnadi, MD · NPI 1154451441
Psychiatry physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 6, 2007.
## Identity
- **NPI:** 1154451441 (Entity type: Individual)
- **Enumerated:** March 6, 2007
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 223044 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 146 CENTRAL PARK W, 1F, New York, NY 10023-6297
- **Phone:** (212) 799-7111
## 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): Charles U. Nnadi, M.D; P.C. (NPI 1093230708, New York, NY); Physician Affiliate Group Of New York PC (NPI 1013375526, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1983
## Record status
- **NPPES last updated:** May 17, 2016
---
Source: [NPI Profile](https://npiprofile.com/npi/1154451441) · Data from the CMS NPPES public registry.