Jack Greenberg, MD
Specialty
Family Medicine
Languages
English
Need help with your Medicare plan options?
Call 1-888-406-0090* to speak with a licensed insurance agent or shop online.
Seeing patients at
Patient Reviews
Patient review summary
Learn about our survey5
4
3
2
1
4.6
93 reviews
-
Apr 30, 2026Verified Review
He explained everything and got me a referral
-
Apr 10, 2026Verified Review
I already answered
-
Apr 4, 2026Verified Review
I had a hard time talking to him. He seemed rushed when he came into the room. I told him that I needed help with my pain. I didn't say anything else because I usually start to tell a lengthy medical history with all of my symptoms. He was annoyed by my short answer as he asked for more information. I tried to talk but I was frozen. I told him that I had expressive aphasia and I was trying to find my words. I can't remember much about what I said about my health. I think that he's a good doctor and he complimented Gerald Loy, NP for his comprehensive blood panel that was ordered and Dr. Greenberg ordered a couple more blood tests to determine inflammation which made me feel like I was receiving care.
-
Mar 29, 2026Verified Review
I don’t really know him
-
Mar 29, 2026Verified Review
My primary left. Optum botched an appointment request for a annual physical exam. Dr. Jack was available for a same-day appointment. He will not be my primary. Seemed very busy, but did see me twice and provided a diagnosis, for which I'm grateful.
-
Mar 22, 2026Verified Review
He is the first doctor actually support in getting tested for the side affects ( diabetes) ( cholesterol) He us the 1st to care to take action. Ive taken and will continue to take meds for life ( mental illness) He didn't just analyze my mental health but also my physical health...never ever in [omitted] years were both important..
-
Mar 15, 2026Verified Review
No Doctors available nad he's leaving at anytime
-
Mar 12, 2026Verified Review
He is awesome!
-
Mar 8, 2026Verified Review
1st time I’d met Dr Greenberg
-
Mar 5, 2026Verified Review
Very knowledgeable, courteous, provided the answers I needed to clarify my questions, authorized my prescription refill that day.
-
Mar 3, 2026Verified Review
Having Dr. Greenberg for many years as my PCP, I hope to do so as long as he’s available.
-
Feb 27, 2026Verified Review
Very professional and efficient.
-
Feb 26, 2026Verified Review
Dr. Greenberg was attentive to my physical concerns and very importantly dealt with a physical issue that related to my appointment on that particular day. I appreciated his expertise very much.
-
Feb 25, 2026Verified Review
good dr
-
Feb 14, 2026Verified Review
The length of time he spent with me, less than 5 minutes. His attitude toward me was one of ,I'm in a hurry, I need to get to my next patient. He didn't talk about getting a mammogram, bone density test, or go over my recent labs. He said he wouldn't refill my compounding medication with no explanation why he wouldn't. As he flew out the door, he said, your labs are fine.
-
Feb 13, 2026Verified Review
Thank you Dr. Jack J Greenberg
-
Feb 5, 2026Verified Review
Ok
-
Feb 2, 2026Verified Review
Excellent interaction skills
-
Feb 2, 2026Verified Review
Dr. Greenburg is one of the few doctors in practice that has the ability to find problems with your health that very few doctors have, at least in my experience.
-
Feb 1, 2026Verified Review
In spite of working for Optum, he provides excellent, compassionate care to his patients. He genuinely cares about them and their health. You should get his input about how to provide care to patients.
-
Gender
Male
Board certifications
American Board of Family Medicine
Licenses
NM, 81-212
Employed or contracted
Employed
Network Name
Optum New Mexico
NPI
1366465460
The contact information listed will direct you to a licensed representative that works with Medicare enrollees to explain Medicare Advantage and Prescription Drug Plan options. There may not be plans available in your area. Any information provided is limited to those plans offered in your area.
*The contact information listed will direct you to a licensed representative that works with Medicare enrollees to explain Medicare Advantage and Prescription Drug Plan options. There may not be plans available in your area. Any information provided is limited to those plans offered in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.
You are now leaving Optum and going to a third-party website operated by Google. Optum is not responsible for the content or accuracy of the information on this third-party site. We recommend you review the third-party site's privacy policy and terms of use, as Optum's will no longer apply.
Leaving Optum.com
You are now leaving Optum.com to see Medicare plan choices through our partner site.
Data use
We use cookies and similar tools to make your use of this website easy and to keep it working properly. We may share data about you and how you use the site with third parties, such as analytics and marketing partners. Learn more in our Privacy Policy and Terms of Use. By continuing to use the site, you agree to this.