Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Katherine S Inoyama, MD

Individual provider Neurology Physician · NPI 1902032188

Katherine S Inoyama, MD practises Neurology in Ridgewood, New Jersey. Graduated from Georgetown University School of Medicine in 2009, 17 years ago. Practices with Neurology Group of Bergen County PA, a 26-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California, New Jersey and Pennsylvania.

Years since qualifying
17
Trained at
Georgetown University School of Medicine
Licensed in
CA, NJ, PA
In the registry since
2009
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1200 E Ridgewood Ave Ste 208
Ridgewood, NJ 07450-3937
Phone: (201) 444-0868
Fax: (201) 447-0581
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 25MA09682200 (NJ)
Neurology Physician Taxonomy 2084N0400X · Licence MT195953 (PA)
Neurology Physician Taxonomy 2084N0400X · Licence A125037 (CA)

Record details

NPI number1902032188
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 2, 2009
Last updated in NPPESJuly 18, 2022
Certification dateJuly 18, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Neurology Group Of Bergen County Pa — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients802
Services billed 1,876 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $120 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Neurology Group of Bergen County PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 26 clinicians in the practice; 12 are shown here.

Other providers in Ridgewood