Careers With St. Joseph Health

Our Values are more than just words.

They form the heart and soul of St. Joseph Health and are the prime reason we attract and retain high-caliber employees who believe in the sanctity of their work in our faith-based setting.

Recent News

Irvine school nurses, staff learn Stop the Bleed techniques to respond in mass-casualty situation

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Severe Flu Season Tightens Its Grip on U.S.

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About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Thomas Hoffmann, MD

  • Dermatology
Additional Language Spoken
English, Spanish
Medical Groups & Affiliations
  • St. Mary Medical Center
18095 Hwy. 18
Suite D
Apple Valley, CA 92307
Accepting New Patients

Primary Office

18095 Hwy. 18
Suite D
Apple Valley, CA 92307
Get Directions
(760) 242-7546
(760) 242-5599
Mon - Wed, Fri, 8:30 a.m. - 5 p.m., Thu, 8:30 a.m. - 12 p.m.

Secondary Office

1330 W. Covina Blvd.
Suite 102

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Dermatology
    Education & Training
    • Medical School
      University of Illinois- Chicago, IL
    • Internship
      St. Mary's Medical Center (U.C.L.A.)- Long Beach, CA
    • Residency
      Baylor College of Medicine- Houston, TX
    • Fellowship
      Loma Linda University- Loma Linda, CA
    Areas of Interest

    Dermatology, Mohs Surgery, Skin Cancer

  • Biography



    What is your philosophy of practice?
    To provide compassionate and quality health care.

    Note: I specialize in skin cancers and MOHS micrographic surgery technique. Do not accept minor children under the age of 18 or HMO patients. Do not see acne or rashes.

    Mohs - Micrographic Surgery & Cutaneour Oncology
    American College of Mohs, Micrographic Surgery & Cutaneour Oncology

    Medical Quality Assurance
    Board of Medical Quality Assurance of CA

    Dermatologic Surgery
    American Society for Dermatologic Surgery, Inc.

    Board Certified
    American Board of Physician Specialists

    American Board of Dermatology

    American Academy of Dermatology
  • Insurance Accepted

    Insurance Accepted

    Insurance ID Numbers

    Aetna: *681904
    Blue Cross: *YNL186
    Blue Shield: 0A1165000
    CIGNA: 9308424003
    CIGNA Select: 9308424008
    Health Net: 3620222986
    Health Net Senior: n/a
    SCAN: n/a
    United Healthcare: *0 279630101

    *Provider ID is the same for both HMO and Medicare Advantage Plans