Quick answers
- Does Katherine S. Inoyama accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine S. Inoyama accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Katherine S. Inoyama see?
- In 2024, CMS data shows 802 Original Medicare patients and 1,876 services for Katherine S. Inoyama. This counts Original Medicare only and measures volume, not quality.
- What is Katherine S. Inoyama's NPI number?
- 1902032188. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Katherine S. Inoyama, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 802 |
|---|---|
| Services billed to Medicare | 1,876 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Measurement of brain wave activity (eeg), awake and asleep (95819)280 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)263 services
- Assessment of emotional or behavioral problems (96127)218 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)183 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)168 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Stroke or mini-stroke51%
- Ischemic heart disease47%
- Anxiety42%
Hospitals where Katherine S. Inoyama works
Medicare's Facility Affiliation Data lists Katherine S. Inoyama at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310001
- Holy Name Medical CenterTeaneck, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310008
- St Joseph's University Medical Center IncPaterson, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 310019
- Valley HospitalParamus, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310012
Practice locations
Addresses where Katherine S. Inoyama is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 E Ridgewood Ave, 2nd Flr East Wing Suite 208Ridgewood, NJ 07450 (201) 444‑0868
Group practices
Medicare enrollment lists Katherine S. Inoyama as a member of this group (CMS data updated October 2, 2026).
- Neurology Group of Bergen County PA26 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Ridgewood
Clinicians with the same Medicare primary specialty in Ridgewood, NJ — not a recommendation.
Other clinicians in Neurology Group of Bergen County PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902032188 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians