Are you a healthcare professional?
Is this your profile?
background
background
Dr. Dennett Hanssmann, MD

Dr. Dennett Hanssmann, MD

Psychiatry*
55+ years of experience

Dr. Dennett Hanssmann, MD is a psychiatrist in Sacramento, CA and has over 55 years of experience in the medical field. He graduated from University of Iowa Carver College of Medicine in 1967. He is affiliated with medical facilities UC Davis Medical Center and Sutter Medical Center-Ose Adams Medical Pavilion.

3.9 Star Rating
Based on 14 reviews 3.9 Star Rating (14 reviews)

Practice

1005 40th St Sacramento, CA 95819

Make an Appointment

At a Glance

  • Area of Expertise
    Dr. Hanssmann specializes in the area of Psychiatry. See board certifications
  • Friendly Staff
    Patients said the staff was friendly. See reviews
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals
ADVERTISEMENT
healthgrades-rx

Save money with free prescription discounts

Optum Perks and Healthgrades are subsidiaries of RVO Health.

Experience Check

Search for experience in a specific area

Insurance Check

Search for your insurance carrier and choose your plan type

Dr. Hanssmann's Reviews

Likelihood to recommend Dr. Hanssmann

3.9

14 ratings, 2 with a written review
5 Star
71%
71%
4 Star
0%
0%
3 Star
0%
0%
2 Star
7%
7%
1 Star
21%
21%

Your trust is our top concern. Learn more.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Melody Koontz in Sacramento, CA – May 31, 2016
×Post a ResponseAre you Dr. Dennett Hanssmann, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
Bob S in Sacramento, CA – Apr 17, 2016
×Post a ResponseAre you Dr. Dennett Hanssmann, MD?

Leave a review

How was your experience with Dr. Hanssmann?

About Me

biography

Dr. Dennett Hanssmann, MD is a psychiatrist in Sacramento, CA and has over 55 years of experience in the medical field. He graduated from University of Iowa Carver College of Medicine in 1967. He is affiliated with medical facilities UC Davis Medical Center and Sutter Medical Center-Ose Adams Medical Pavilion.
  • Psychiatry

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Sepulveda Va Hosp-ucla

    Fellowship Hospital, 1977
  • University Of California-los Angeles

    Residency Hospital, 1976
  • University Of Iowa Hospitals & Clinics

    Residency Hospital, 1969
  • Chicago

    Internship Hospital, 1968
  • University Of Iowa Carver College Of Medicine

    Medical School, 1967
American Board of Medical Specialties®
American Board of Psychiatry & Neurology®
Psychiatry
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Locations

Practice

Office1005 40th St Sacramento, CA 95819
1
Sacramento Center for Psychotherapy1621 Oak Ave Ste B Davis, CA 95616
2

Affiliated Hospitals

  • UC Davis Medical Center

    2315 Stockton Blvd
    Sacramento, CA 95817
    Recipient of 49
    hospital awards

    America's 100 Best Hospitals Award™ (2025, 2024)

    Top 5% in the nation for consistently delivering clinical quality

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    88%
    Patients said they were given information about recovering at home

    4% higher than the national average

    79%
    Patients said that doctors always listened to them and explained things well

    3% higher than the national average

    View all patient feedback
  • Sutter Medical Center-Ose Adams Medical Pavilion

    2825 Capitol Ave
    Sacramento, CA 95816
    Recipient of 19
    hospital awards

    Surgical Care Excellence Award™ (2025, 2024, 2023)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    America's 250 Best Hospitals Award™ (2023)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    View all awards

    How patients felt about the care they received at this hospital.

    88%
    Patients said they were given information about recovering at home

    4% higher than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality