What patients are saying
Overall rating
4.45
Average wait time
4.19
Bedside manner
4.62
“I scheduled my appointment for a certain date but I received a call the following day to reschedule for the following week. Zocdoc and my calendar did not update and thus I accidentally when to my now canceled appointment. I was eventually seen but I did need to wait a while.”
Chad T.February 20, 2026
“I visited Zenith Primary and Urgent Care for a primary care appointment and was very satisfied. The doctor was knowledgeable and thorough, and the service was fast and well-organized. Overall, a smooth and positive experience.”
Initials hiddenJanuary 21, 2026
About Dr. Badal Kalamkar
Dr. Badal Kalamkar has more than a decade of experience of practicing in several hospital systems. He has an independent practice and is accepting new patients.
All the services offered here are through a new patient primary care consultation.
Dr. Badal Kalamkar is an experienced internist. He provides comprehensive primary and urgent care services at Zenith Primary & Urgent Care in Marlborough, MA.
Dr. Kalamkar earned his medical degree from Topiwala National Medical College in Mumbai. He completed his internal medicine residency at Upstate Medical University.
Board-certified by the American Board of Internal Medicine, Dr. Kalamkar specializes in delivering high-quality, evidence-based care tailored to each patient's individual needs. He is dedicated to promoting preventive health and managing both acute and chronic medical conditions with a patient-centered approach.
Is this doctor in your insurance network?
Enter your insurance carrier and plan
choose insurance
In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
UnitedHealthcare
Office location & hours
Hours
Monday:
9:00am - 5:00pm
Tuesday:
9:00am - 5:00pm
Wednesday:
9:00am - 5:00pm
Thursday:
9:00am - 5:00pm
Friday:
9:00am - 5:00pm
Saturday:
Closed
Sunday:
Closed
Education and background
Practice names
Board certifications
- American Board of Internal Medicine
Education and training
- Medical School - Topiwala National Medical College, Mumbai, Doctor of Medicine
- Upstate Medical University, Residency in Internal Medicine
Languages spoken
- English
Provider's gender
Male
NPI number
1114214756
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.45
Wait time
4.19
Bedside manner
4.62
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
29 reviews
Most relevant
Very friendly and knowledge staff. Doctor listened to my issues and addressed them properly.
Less than 6 months agoInitials hidden
Very thorough and efficient. Doctor was helpful and knowledgeable. Appointment went great.
Less than 6 months agoNM
Helpful, pleasant staff from registration, nurses to doctor Kalamkar!
Less than 6 months agoAS
Very happy with the service received. The doctor is very attentive.
Less than 6 months agoCD
Excellent professional team — make you trust in care provided.
Less than 6 months agoCP
This was my first visit to this PCP and unfortunately it was a terrible experience. I arrived 10 minutes early as requested for my 3:00 PM appointment. I wasn’t brought back to a room until 3:20. A nurse came in, took my vitals, and then I was left sitting there with no communication.
By 3:55, no one had come back into the room, so I left. When I walked out, the doctor was sitting at his computer and never once came in to introduce himself or even acknowledge the delay. For a new patient, the absolute bare minimum should be stopping in to say hello and letting me know there would be a wait.
To make matters worse, the waiting room was empty, so it didn’t appear that they were particularly busy. I also walked by the back area where staff appeared to be installing a TV.
I understand that delays can happen, but completely ignoring a patient for nearly an hour with no explanation is unacceptable. I sincerely hope I’m not billed for a visit that never happened.
March 4, 2026Initials hidden
excellent introduction to a new Doc.
February 25, 2026Paul L.Verified patient
I scheduled my appointment for a certain date but I received a call the following day to reschedule for the following week. Zocdoc and my calendar did not update and thus I accidentally when to my now canceled appointment. I was eventually seen but I did need to wait a while.
February 20, 2026Chad T.Verified patient
Excellent experience.
January 28, 2026Christian P.Verified patient
I visited Zenith Primary and Urgent Care for a primary care appointment and was very satisfied. The doctor was knowledgeable and thorough, and the service was fast and well-organized. Overall, a smooth and positive experience.
January 21, 2026Initials hidden
I booked my appointment online threw zocdoc and I have Fallon as my health insurance but when I got to my appointment I was told by the front desk person that they don’t take my insurance and that the online app doesn’t consist with theirs so I was told I wasn’t going to be seen. It was a waste of time and travel to get to my appointment and to be told I wasted my time. If there was an issue they should have called or emailed me with the issues rather text me and email me with updates on my appointments. I will not be using Zocdoc and that office ever again!
January 3, 2026Mark D.Verified patient
I was very happy with Zenith, everyone was very happy & helpful. I liked the office & our staff & the doctor. Thanks for all your help.
Less than 6 months agoFT
The best doctor I have had!
Less than 6 months agoJA
I thought your service taking care of people was great... and you helped me. Big time... Thanks. I would and will recommend you to others...
Less than 6 months agoMB
Dr. Kalankar took the time to get to know me and understand my medical history. He was very thorough. He met my needs & found other alternatives to medications that will be beneficial for me. I would recommend this practice on a heart beat. Thank you to the wonderful staff & doctors!!
Less than 6 months agoRO
The clinic was very neat and the team was very kind. The doctor was attentive and listened to me. There was rarely a wait and everything was done fast and efficiently.
Less than 6 months agoDD
April 13, 2026Norma F.Verified patient
Less than 3 months agoInitials hidden
February 20, 2026Kartik S.Verified patient
February 5, 2026Nicolas P.Verified patient
January 29, 2026Kethlen D.Verified patient
January 25, 2026Michael C.Verified patient
Less than 6 months agoInitials hidden
January 6, 2026Shawn P.Verified patient
December 29, 2025Akhila V.Verified patient
Less than 6 months agoInitials hidden
December 19, 2025Astra P.Verified patient
December 16, 2025Mireya F.Verified patient
Less than 6 months agoInitials hidden
How soon can I make an appointment with Dr. Badal Kalamkar?
Generally, Dr. Badal Kalamkar has appointments available on Zocdoc within 1 week. You can see Dr. Kalamkar's earliest availability on Zocdoc and make an appointment online.
Is Dr. Badal Kalamkar accepting new patients?
Dr. Badal Kalamkar generally accepts new patients on Zocdoc. You can see Dr. Kalamkar's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Badal Kalamkar accept my insurance?
Choose your insurance plan to verify if Dr. Kalamkar is in-network.
Can I make an appointment with Dr. Badal Kalamkar online?
Yes, you can make an appointment online with Dr. Kalamkar using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Badal Kalamkar work with?
Dr. Badal Kalamkar works with Zenith Primary & Urgent Care.
Where is Dr. Badal Kalamkar's office located?
Dr. Badal Kalamkar's office is located at 757 Boston Post Rd E, Marlborough, MA 01752.
Which board certifications does Dr. Badal Kalamkar have?
Dr. Badal Kalamkar is certified by American Board of Internal Medicine.
What languages does Dr. Badal Kalamkar speak?
Dr. Badal Kalamkar speaks English.
How do patients rate Dr. Badal Kalamkar in reviews?
29 patients have reviewed Dr. Badal Kalamkar. The overall rating for this doctor is 4.45/5. They have a 4.62/5 rating for bedside manner and a 4.19/5 rating for wait time. You can read individual reviews and ratings on their profile.