Summary

Dr. Nimtz graduated from the Sidney Kimmel Medical College At Thomas Jefferson University in 2021. He works in Walnut Creek, CA and 2 other locations and specializes in Emergency Medicine. Dr. Nimtz is affiliated with Kaiser Permanente Walnut Creek Medical Center and Kaiser Permanente Antioch Medical Center.

Quick Facts

  • 5 years of experience
  • 44 insurance plans accepted
  • Sidney Kimmel Medical College At Thomas Jefferson University
  • 1 specialty
  • 2 hospital affiliations
  • 3 office locations
  • Male

Office Locations

Dr. Karl Joshua Nimtz has 3 locations

Riverside Community Hospital

4445 Magnolia AveRiverside, CA 92501

Kaiser Permanente Antioch Medical Center

4501 Sand Creek RdAntioch, CA 94531

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Dr. Karl Joshua Nimtz
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Dr. Karl Joshua NimtzChristopher Carleo, MDDr. Kenneth Ilwoo KimDr. Anuj Ramesh Patel
Emergency MedicineEmergency MedicineEmergency MedicineEmergency Medicine
Accepts New Patients
4.5 
5 Years of Experience 28 Years of Experience 14 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English
Walnut Creek , CAEast Setauket , NYSan Leandro , CASan Leandro , CA
Med School: Sidney Kimmel Medical College At Thomas Jefferson University Med School: Suny Stony Brookhealth Med School: David Geffen School Of Medicine At Ucla Med School: WESTERN UNIVERSITY OF HEALTH SCIENCES
Current Profile
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Insurance Plans Accepted by Dr. Karl Joshua Nimtz

  • Aetna
  • Alameda Alliance for Health
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Brand New Day
  • CalOptima
  • CareFirst Blue Cross Blue Shield
  • CHAMPVA
  • Chinese Community Health Plan
  • Cigna
  • Community Health Group
  • Contra Costa Health Plan
  • Health Net
  • Health Net - HMO
  • Health Plan of San Joaquin
  • Health Plan of San Joaquin - HMO
  • Health Plan of San Joaquin - Medicaid (Managed)
  • Humana
  • Humana - HMO
  • Inland Empire Health Plan
  • Kaiser Permanente
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • MedStar Family Choice
  • Molina Healthcare
  • Molina Healthcare - Medicare (Advantage HMO)
  • Optum Health
  • Santa Clara Family Health Plan
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • SCAN Health Plan - Medicare (Advantage HMO)
  • Three Rivers Providers Network (TRPN) - Medicaid (Managed)
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare (Advantage HMO)

Medical Specialties

Dr. Karl Joshua Nimtz has the following specialty

Certifications, License, & Education

5 Years Experience

Dr. Karl Joshua Nimtz holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Medical School

Graduated from Sidney Kimmel Medical College At Thomas Jefferson University in 2021.

NPI Number

Dr. Nimtz's NPI number is 1417535600.

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Frequently Asked Questions

Does Dr. Karl Joshua Nimtz accept my insurance?
You can see the insurance plans that Dr. Karl Joshua Nimtz accepts on their Vitals profile.
Where is Dr. Karl Joshua Nimtz's office located?
Dr. Karl Joshua Nimtz's office is located at 1425 S Main St, Walnut Creek, CA, 94596.
Does Dr. Karl Joshua Nimtz accept virtual/telehealth appointments?
Dr. Karl Joshua Nimtz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Karl Joshua Nimtz accepting new patients?
Dr. Karl Joshua Nimtz has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Karl Joshua Nimtz affiliated with?
Dr. Karl Joshua Nimtz is affiliated with Kaiser Permanente Walnut Creek Medical Center and Kaiser Permanente Antioch Medical Center.

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