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End-Stage Renal Disease Specialist - Hamilton, NJ

End-Stage Renal Disease TreatmentParsippany–Troy Hills, NJ

★★★★★4.9/573 reviews across 2 platforms

Ratings by platform

  • Consultants in Kidney Diseases (Practice-level): 4.9 out of 5 stars (based on 73 reviews) (73 reviews)
  • Healthgrades (Dr. Sadhana Kumar): 3.86 out of 5 (likelihood to recommend) (Multiple individual reviews cited)

What patients say

Patients praise

  • Physicians described as thorough and attentive listeners
  • Professional, courteous, and efficient office staff interactions (specific to some practices)
  • Clear explanations of medical results and care plans in layman's terms
  • High levels of trust and confidence in long-term physician-patient relationships
  • Accommodating practice environments

Common complaints

  • Difficulties with scheduling appointments
  • Issues with billing and in-network laboratory services
  • Reports of rude or unprofessional staff behavior
  • Long wait times in office
  • Concerns regarding lack of explanation for conditions or treatments

In patients' words

"Dr. Maniya is an excellent doctor who is very thorough and takes the time to really listen and evaluate your needs."

Consultants in Kidney Diseases patient testimonial

"Awful experience. they send the blood work to a lab that is not in network. the staff is rude and laughs when we talk to them. pathetic experience."

Patient review on Healthgrades regarding Dr. Sadhana Kumar's office

"I have been a patient of Dr. Nielsen for almost 20 years. I could not feel more confident in a physician."

Patient review on WebMD for a nephrologist in the Parsippany area

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7].

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