Summary

Dr. Joseph Grondahl is a family medicine physician who earned his medical degree from Renaissance School of Medicine at Stony Brook University. With 29 years of experience in family practice, he provides comprehensive primary care services to patients of all ages. His extensive background allows him to address a wide range of health concerns and coordinate care across different medical specialties.

Dr. Grondahl practices at Kaiser Permanente Walnut Creek Medical Center and Kaiser Foundation Hospital, serving communities in Walnut Creek and Vallejo, California. He specializes in treating foot and ankle problems, bone injuries, and various types of contusions. His clinical expertise includes performing extremity X-rays, arthrograms, and providing adult immunizations to help patients maintain their health. Patients rate him 5.0 out of 5 stars, reflecting their confidence in his compassionate and thorough approach to family medicine.

Overview based on verified provider data

Quick Facts

  • 5
  • 29 years of experience
  • THE SCHOOL OF MEDICINE AT STONY BROOK UNIVERSITY MEDICAL CENTER
  • 1 written review
  • 1 specialty
  • 6 areas of expertise
  • 1 board certification
  • 2 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Joseph Merrill Grondahl has 2 locations

Kaiser Foundation Hospital

975 Sereno DrVallejo, CA 94589

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Dr. Joseph Merrill Grondahl, MDDr. David Byron, MDDr. Shakeilla Smithbey, MDDr. Samantha Von Ins, MD
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
29 Years of Experience 16 Years of Experience 15 Years of Experience 16 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks Spanish, Vietnamese
Walnut Creek , CATuscon , AZHouston , TXPlacentia , CA
Med School: THE SCHOOL OF MEDICINE AT STONY BROOK UNIVERSITY MEDICAL CENTER Med School: Ben-Gurion University Of The Negev Faculty Of Health Sciences Med School: Howard University College Of Medicine Med School: University Of California Irvine College Of Medicine
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Insurance Plans Accepted by Dr. Joseph Merrill Grondahl

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Joseph Merrill Grondahl has the following specialty

Specialty Expertise

Dr. Joseph Merrill Grondahl has the following 6 areas of expertise

  • Check-up
  • Contraception
  • Family Planning
  • Immunization
  • Influenza
  • Weight Loss

Certifications, License, & Education

29 Years Experience

Dr. Joseph Merrill Grondahl 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 2026.

Education & Training

Medical School

Graduated from THE SCHOOL OF MEDICINE AT STONY BROOK UNIVERSITY MEDICAL CENTER and Renaissance School Of Medicine At Stony Brook University in 1997.

NPI Number

Dr. Grondahl's NPI number is 1073691887.

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Frequently Asked Questions

Is Dr. Joseph Merrill Grondahl accepting new patients?
Dr. Joseph Merrill Grondahl has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Joseph Merrill Grondahl accept my insurance?
You can see the insurance plans that Dr. Joseph Merrill Grondahl accepts on their Vitals profile.
Which hospitals is Dr. Joseph Merrill Grondahl affiliated with?
Dr. Joseph Merrill Grondahl is affiliated with Kaiser Permanente Walnut Creek Medical Center and Kaiser Foundation Hospital.
Where is Dr. Joseph Merrill Grondahl's office located?
Dr. Joseph Merrill Grondahl's office is located at 1425 S Main St, Walnut Creek, CA, 94596.
How can I make an appointment with Dr. Joseph Merrill Grondahl?
You can find contact information for Dr. Joseph Merrill Grondahl here on Vitals.

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