OKI ISHIKAWA
NPI 1740690890
Student in an Organized Health Care Education/Training Program in New York, NY
About Oki Ishikawa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OKI ISHIKAWA (NPI 1740690890) is an individual student in an organized health care education/training program in New York, New York and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Northern Westchester Hospital, and is a graduate of Other (2014).
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
Oki Ishikawa 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 Reassignment
Medicare enrollment records show Oki Ishikawa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 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 17
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Westchester Hospital
Acute Care Hospitals · Mount Kisco, NYPhelps Hospital
Acute Care Hospitals · Sleepy Hollow, NYMedicare 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 10075
NEW YORK, NY 10075
NEW YORK, NY 10075
NEW YORK, NY 10075
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 Oki Ishikawa's NPI number?
The NPI number for Oki Ishikawa is 1740690890. It was assigned to this individual provider in the NPPES registry on April 29, 2014.
Where is Oki Ishikawa located?
Oki Ishikawa practices at 100 E 77th St, New York, NY 10075. The listed phone number is (212) 434-2000.
What is Oki Ishikawa's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Oki Ishikawa enrolled in Medicare?
Yes. Oki Ishikawa 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 organization bills Medicare for Oki Ishikawa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Oki Ishikawa reassigns Medicare benefits to North Shore - Lij Medical PC (New Hyde Park, NY). The 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 Oki Ishikawa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Oki Ishikawa affiliated with any hospitals?
According to CMS data, Oki Ishikawa is affiliated with Northern Westchester Hospital and Phelps Hospital.
When was this NPI record last updated?
The NPPES record for Oki Ishikawa was last updated on April 29, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.