MILLIAM L. KATAOKA MD
NPI 1295976504
Radiology - Body Imaging in Northampton, MA
About Milliam L. Kataoka Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MILLIAM L. KATAOKA MD (NPI 1295976504) is an individual body imaging provider in Northampton, Massachusetts, licensed in Massachusetts (231317) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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
Milliam L. Kataoka 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
5Medicare enrollment records show Milliam Kataoka reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 158 clinicians in this Medicare group
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 539 clinicians in this Medicare group
Holyoke, MA 01040
- Reassigned Medicare billing, Massachusetts enrollment
- 241 clinicians in this Medicare group
Chicopee, MA 01020
- Reassigned Medicare billing, Massachusetts enrollment
- 242 clinicians in this Medicare group
Springfield, MA 01104
- Reassigned Medicare billing, Massachusetts enrollment
- 298 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 32
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cooley Dickinson Hospital Inc,the
Acute Care Hospitals · Northampton, MAHolyoke Medical Center
Acute Care Hospitals · Holyoke, MAMercy Medical Ctr
Acute Care Hospitals · Springfield, MABaystate Medical Center
Acute Care Hospitals · Springfield, MAMedicare 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.
Reported Quality Measures
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.
NORTHAMPTON, MA 01060
NORTHAMPTON, MA 01060
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 Milliam Kataoka's NPI number?
The NPI number for Milliam Kataoka is 1295976504. It was assigned to this individual provider in the NPPES registry on March 16, 2009.
Where is Milliam Kataoka located?
Milliam Kataoka practices at 30 Locust St, Northampton, MA 01060. The listed phone number is (413) 529-9300.
What is Milliam Kataoka's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Body Imaging, with taxonomy code 2085B0100X.
Is Milliam Kataoka enrolled in Medicare?
Yes. Milliam Kataoka 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 Milliam Kataoka's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Milliam Kataoka reassigns Medicare benefits to 5 organizations: Cooley Dickinson Hospital Inc (Northampton, MA), Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA), Holyoke Medical Center, Inc. (Holyoke, MA), Western Mass Physician Associates Inc (Chicopee, MA) and Riverbend Medical Group, Inc. (Springfield, MA). 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 Milliam Kataoka's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Milliam Kataoka accept?
Health plans from Taro Health list Milliam Kataoka as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Milliam Kataoka affiliated with any hospitals?
According to CMS data, Milliam Kataoka is affiliated with Cooley Dickinson Hospital Inc,the, Holyoke Medical Center, Mercy Medical Ctr and Baystate Medical Center.
When was this NPI record last updated?
The NPPES record for Milliam Kataoka was last updated on January 15, 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.