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Clinic Type

Nephrology

Address

9 North Rd, Suite 101, Chelmsford, MA

Phone

Fax: 866-463-3866

Email

hmeeran@neinsp.com

Opening Hours

Monday – Friday 9AM – 4:30PM

Services Offered

  • annual physicals
  • preventive screenings
  • EKGs
  • flu shots
  • chronic disease management
  • same-day sick visits
  • primary care
  • nephrology
  • care coordination
  • patient-centered care

Team

  • Sebastian Sepulveda, MD — MD, Nephrologist & Primary Care Provider
  • Kaley O’Neill, NP — NP, Primary Care Provider

Insurance & Payment

Languages Spoken

  • English

FAQs

What are the clinic hours?

Monday – Friday 9AM – 4:30PM.

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye/Google: 4.8 out of 5 stars (37 reviews)

Patients praise

  • Friendly and accommodating staff
  • Professional and compassionate doctors
  • Good patient listening and bedside manner
  • Efficient and helpful service

Common complaints

  • Difficulties with office staff and scheduling
  • Allegations of billing issues

"Excellent doctor. He knows what his patients needs. Very friendly and he makes you comfortable."

Todays Wellness & Primary Care website testimonials

"this doctors office is worse than scam. it's fraud. don't ever call this office it's so hard to deal with the doctors and the office staff"

MapQuest/Yelp user review

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

Information sourced from the clinic's website as of July 11, 2026.

More nephrology clinics in Chelmsford

Chelmsford, MA·Nephrology

Sepulveda & Associates, PC is a primary care practice based in Chelmsford, Massachusetts, offering internal medicine, nephrology, and hypertension care with a focus on preventative care, patient education, and managing acute and chronic conditions. The firm operates three offices in Chelmsford and targets a patient-centered healthcare approach. Key details: headquarters in Chelmsford, MA; active status; phone numbers 978-452-5975 and 978-458-2005; small workforce (1–10 employees). Web presence shows modest traffic (about 313 monthly visits) with high engagement metrics (low bounce rate) and a split audience between India and the United States.

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