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Dr. Jonathan Hemphill, MD

Dr. Jonathan Hemphill, MD

Cardiology*
40+ years of experience

Dr. Jonathan Hemphill, MD is a cardiologist in Carmichael, CA and has over 40 years of experience in the medical field. Dr. Hemphill has extensive experience in Adult Congenital Heart Conditions and Heart Conditions. He graduated from St. Georges University School of Medicine in 1982. He is affiliated with Mercy San Juan Medical Center. He is accepting new patients and telehealth appointments.

4.9 Star Rating
Based on 75 reviews 4.9 Star Rating (75 reviews)

Locations

Mercy San Juan Medical Center

Dignity Health Mercy Medical Group6558 Coyle Ave Ste 283 Carmichael, CA 95608
1
New Patient?
(916) 306-7951

Hospital Highlight

Dr. Hemphill is affiliated with Mercy San Juan Medical Center Carmichael, a highly rated and top awarded hospital for cardiology.

Dr. Hemphill is a Healthgrades Choice provider in Cardiology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Areas of ExpertiseDr. Hemphill specializes in the areas of Cardiovascular Disease & Internal Medicine. See board certifications
  • Explains Conditions WellPatients said this doctor explains conditions well. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top HospitalCoronary Intervention Excellence Award™ See hospitals

Experience Check

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Dr. Hemphill's Reviews

Likelihood to recommend Dr. Hemphill

4.9

75 ratings, 64 with a written review
5 Star
96%
96%
4 Star
0%
0%
3 Star
0%
0%
2 Star
1%
1%
1 Star
3%
3%

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RecentHighestLowestMost Helpful
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Feb 28, 2025
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What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Feb 22, 2025
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jan 23, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Jan 21, 2025
Thank you for sharing; your review is helpful! We...Read More
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
No results
What could be improved
No results
Helpful
Nov 27, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Oct 04, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Aug 06, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
No results
What could be improved
No results
Helpful
Jul 29, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jul 21, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jul 05, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jul 05, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jun 24, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jun 24, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Explained conditions well
What could be improved
No results
Helpful
Jun 23, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jun 09, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 24, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 22, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 17, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 17, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?
What went well
No results
What could be improved
No results
Helpful
Nathan A. Cammack – Apr 09, 2024
×Post a ResponseAre you Dr. Jonathan Hemphill, MD?

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About Me

biography

Dr. Jonathan Hemphill, MD is a cardiologist in Carmichael, CA and has over 40 years of experience in the medical field. Dr. Hemphill has extensive experience in Adult Congenital Heart Conditions and Heart Conditions. He graduated from St. Georges...read more
  • Cardiology

  • Interventional Cardiology

  • Internal Medicine

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

  • St. Georges University School Of Medicine

    Medical School, 1982
American Board of Medical Specialties®
American Board of Internal Medicine®
Cardiovascular Disease
Internal Medicine
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.

Dr. Hemphill is a Healthgrades Choice provider in Cardiology

    Read our methodology

    Affiliated Hospitals

    • Mercy San Juan Medical Center

      6501 Coyle Ave
      Carmichael, CA 95608
      Recipient of 12
      hospital awards

      Coronary Intervention Excellence Award™ (2025)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      Patient Safety Excellence Award™ (2025, 2024)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

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

      85%
      Patients said they were given information about recovering at home

      1% higher than the national average

      76%
      Patients said that doctors always listened to them and explained things well
      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality