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Hartwyck at Oak Tree

⌖ Edison, NJ · Middlesex County
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Medicare overall rating 5 of 5 stars
Certified beds120
Medicare / MedicaidMedicare & Medicaid
OwnershipNon-profit (corporation)

About Hartwyck at Oak Tree

Hartwyck at Oak Tree is a 120-bed nonprofit nursing home in Edison, NJ. Medicare rates it 5 out of 5 stars overall (much above average); the average in New Jersey is 3.3. At its last full inspection (May 2026), inspectors found 3 problems, fewer than the New Jersey average of 8.6. None of the problems in its recent inspections were found to have harmed residents. Nurses and aides spend about 3 hr 50 min a day with each resident, about the same as the New Jersey average of 3 hr 51 min. About 39% of its nursing staff left in the past year. It has had no federal fines in the last three years. Its quality ratings are similar for short-term rehab (4 of 5) and long-term care (5 of 5).

Written from Medicare’s published figures; nothing here is paid for or written by the home. Our methodology

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Key details

Facility nameHartwyck At Oak Tree
LocationMiddlesex County, New Jersey
Address2048 Oak Tree Road, Edison, NJ 08820 · Middlesex County
CMS provider number315251
Ownership typeNon-profit (corporation)
Official inspection reportsRead them on Medicare.gov ↗
Medicare enrolled sinceNovember 24, 1987 (38 years)
✓ Medicare✓ Medicaid

Certified for Medicaid; ask whether a Medicaid bed is available.

Quality & inspections

Explore this facility's official CMS inspection history, staffing levels and quality measures below — sourced directly from Medicare's public records.

Overall rating5 of 5Much above average
Health inspections5 of 5Much above average
Quality measures5 of 5Much above average
Staffing1 of 5Much below average

Ratings and inspection data on this page come directly from CMS's public records and are never altered for any paid listing. Medicare data as of September 2026.

What Medicare found

4 strengths and nothing that stands out as a concern in Medicare's inspection, fine and staffing records for this home.

Strengths

  • Serious health citationsNone on recordNo citations for actual harm or immediate jeopardy since May 2026.
    Strength
  • Fines and penaltiesNoneNo federal fines or payment denials in the last three years.
    Strength
  • Health citations at last inspection3 (May 2026)New Jersey average: 8.6. Most citations are minor and corrected within weeks.
    Strength
  • Registered nurse time per resident1 hr 07 min a dayNew Jersey average: 41 min
    Strength

About average

  • Nurse staffing per resident3 hr 50 min a dayNew Jersey average: 3 hr 51 min
    About average
  • Nursing staff turnover39% a yearNew Jersey average: 40%
    About average

Source: Medicare (CMS) inspection, penalty and staffing records, compared with the New Jersey average. Problems may have been corrected since; ask the home about anything listed here. How we choose these

Short-term rehab or long-term care?

Medicare rates these separately, and many homes are better at one than the other.

Short-term rehab

For a stay of a few weeks after a hospital visit, such as after surgery or a stroke.

Medicare quality rating: 4 of 5 (above average)

  • Sent back to the hospital24.8%State average: 24.9%
    About average
  • Needed an emergency room visit6.5%State average: 8.1%
    About average
  • Newly given antipsychotic drugs1.1%State average: 1.2%
    About average

Physical therapist time: about 12 minutes per resident a day. That is more than the state average of 6 minutes. If rehab is the goal, ask how many therapy sessions a week to expect.

Long-term care

For residents who live at the home for months or years.

Medicare quality rating: 5 of 5 (much above average)

  • Falls with a major injury0.0%State average: 2.3%
    Better than average
  • Pressure sores (bedsores)4.0%State average: 5.4%
    Better than average
  • Given antipsychotic drugs5.8%State average: 12.7%
    Better than average
  • Hospital stays per 1,000 resident days1.8State average: 2.1
    About average

Source: Medicare (CMS) quality measures, compared with the New Jersey average. Lower is better for every rate shown.

Who pays, and how full it is

Residents’ care here is paid by a mix of Medicaid, Medicare and private pay. In New Jersey, Medicaid pays for 64% of resident days at a typical home.

  • 45% Medicaid
  • 16% Medicare
  • 40% Private pay, insurance and other
Beds in use, on average54%New Jersey typical: 83%
Cost of care per resident day$909New Jersey typical: $391

Shares of resident days, from the home’s Medicare cost report for the year ending December 2024. The cost per day is what care costs the home to provide, not the price you would pay; ask the home for its private-pay rate. A busy home may have fewer open beds, so ask about availability.

Ratings over time

Its overall Medicare rating is 5 stars now, the same as 5 stars in January 2019. It has ranged from 3 to 5 stars and changed 14 times.

Overall rating5★
Health inspections5★
Staffing1★
Quality of care5★
Nurse hours per resident per day3.8
20192020202120222023202420252026
Show the values by year
MonthOverallInspectionsStaffingQualityNurse hours
Jan 201955344.3
Jan 202054454.4
Jan 202133–43.4
Jan 202242454.4
Jan 202343454.8
Jan 202454455.2
Feb 202555445.0
Feb 202644445.1
Sep 202655153.8

Source: Medicare (CMS) monthly Care Compare releases since 2019. Medicare has changed how some ratings are calculated over the years and paused most inspections in 2020, so some jumps reflect rule changes rather than changes at the home. Our methodology

See the full inspection reportEvery citation, fine, staffing figure and quality measure Medicare publishes for this home

From Medicare’s September 2026 data. Each inspection is dated below; staffing comes from payroll records for a recent quarter, and resident outcomes cover the latest period Medicare reports.

Inspection summary

How this facility compares to state and national averages on CMS-reported problems.

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Three-survey history

Citation counts across this facility's three most recent inspection cycles, so you can see whether problems are trending up, down, or holding steady.

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Explore the area

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Family reviews

No family reviews of this home yet. Reviews are separate from Medicare’s ratings and are checked before they’re published.