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Dr. Mathias Masem, MD

Dr. Mathias Masem, MD

Orthopedic Surgery*
45+ years of experience

Dr. Mathias Masem, MD is an orthopedic surgeon in San Francisco, CA and has over 45 years of experience in the medical field. He graduated from UNIVERSITY OF MINNESOTA / TWIN CITIES CAMPUS in 1975. He is affiliated with medical facilities such as Alta Bates Summit Medical Center-Alta Bates Campus and UCSF Helen Diller Medical Center at Parnassus Heights. He is accepting new patients and telehealth appointments.

3.2 Star Rating
Based on 13 reviews 3.2 Star Rating (13 reviews)

Hand, Elbow & Upper Extremity Surgery Center

1500 Owens St San Francisco, CA 94158
Telehealth available

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Dr. Masem's Reviews

Likelihood to recommend Dr. Masem

3.2
13 ratings, 5 with a written review
5 star
46%
46%
4 star
8%
8%
3 star
0%
0%
2 star
15%
15%
1 star
31%
31%

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Dr Masem has been exceptional regarding my treatment
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jan 24, 2025
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Very disappointing care from Dr. Masem. He operated on my husband, ultimately removing most of 2 fingers. Besides ALWAYS late for appointments (to the tune of my husband waiting 2 hours in the waiting room almost EVERY time he had an appointment) and no pain management after surgery (or before), I would highly recommend you find another care/surgery option. He even went as far as to refuse to re-dress my husbands hand at a post-op follow up appointment. My husband was clearly not ready to leave with out re-wrapping his hand (as it was when he arrived). Dr. Masem said "well, don't you have gauze at home?". What kind of patient care is that? The worst.
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Appointment was rushed
  • Didn't trust the provider's decisions
7 others found this helpful
Helpful
Jul 14, 2020
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I had a traction injury that I went to many doctors for help with. Pretty much none of them were able to even identify the problem until I went to Dr. Masem. He immediately knew what the ailment was and how to treat it, while other doctors knew nothing about my condition. Overall, I am impressed at his medical knowledge, even by doctor standards and highly recommend him for any hand related issues.
What went well
  • Office environment
  • 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 other person found this helpful
Helpful
Los Angeles – Jan 20, 2019
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Masem operated on me three times, counting a repair of a butcher job he did on my right hand. I was an idiot to allow him to work on me in the first place, no excuses! He operated on my right third finger for Dupuytren's contracture syndrome and damaged the tendon in the little finger in the process, necessitating a second procedure to repair the damage. The operation he performed on my right arm was, as I instructed him, to remove a bone spur, NOTHING MORE! Disregarding my direct orders, this
What went well
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
7 others found this helpful
Helpful
Warren in Oakland, CA – Sep 28, 2018
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Dr. Masem is a "god hand" doctor... for he left almost no scar on his patients after surgery. He is an extremely intelligent and skillful doctor with his hands. It could be frustrated for patients to have a long wait during their office visits, however, it is worthy to wait for "god hand" Dr. Masem to give them his precious time.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
8 others found this helpful
Helpful
El Cerrito , CA – Feb 03, 2017
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How was your experience with Dr. Masem?

About Me

care philosophy

Dr Mathias Masem is an orthopedic surgeon with more than 20 years of experience in surgeries of the hand and upper extremities. Masem earned his medical degree at the University of Minnesota. He completed general surgery training and a residency...read more

biography

Dr. Mathias Masem is an orthopedic surgeon with more than 20 years of experience in surgeries of the hand and upper extremities.Masem earned his medical degree at the University of Minnesota. He completed general surgery training and a residency...read more
  • Orthopedic Surgery

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

  • University Of Minnesota / Twin Cities Campus

    Medical School, 1975
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.
  • California Orthopaedic Association, Member

  • English

  • German

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Locations

Hand, Elbow & Upper Extremity Surgery Center

Hand, Elbow & Upper Extremity Surgery Center1500 Owens St San Francisco, CA 94158
1

Affiliated Hospitals

  • UCSF Helen Diller Medical Center at Parnassus Heights

    400 Parnassus Ave
    San Francisco, CA 94143
    Recipient of 33
    hospital awards

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

    Top 5% in the nation for consistently delivering clinical quality

    Outstanding Patient Experience Award™ (2024, 2023, 2022)

    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

    81%
    Patients said that doctors always listened to them and explained things well

    5% higher than the national average

    View all patient feedback
  • John Muir Medical Center Walnut Creek

    1601 Ygnacio Valley Rd
    Walnut Creek, CA 94598
    Recipient of 3
    hospital awards

    Joint Replacement Excellence Award™ (2024, 2023)

    Superior clinical outcomes in knee and hip replacement

    Outstanding Patient Experience Award™ (2022)

    Superior clinical outcomes in knee and hip replacement

    View all awards

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

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    76%
    Patients said that doctors always listened to them and explained things well
    View all patient feedback
  • Alta Bates Summit Medical Center-Alta Bates Campus

    2450 Ashby Ave
    Berkeley, CA 94705
    Recipient of 25
    hospital awards

    America’s 100 Best Hospitals for Joint Replacement Award™ (2025, 2024)

    Top 5% in the nation for consistently delivering clinical quality

    America's 100 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.

    81%
    Patients said they were given information about recovering at home

    3% lower than the national average

    72%
    Patients said that doctors always listened to them and explained things well

    4% lower than the national average

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