Summary

Dr. John Gruen has practiced internal medicine for 43 years and sees patients for hypertension, rhinitis, and type 2 diabetes mellitus. He earned his medical degree from Universitatea de Medicina si Farmacie Iuliu Hatieganu and practices in Panorama City and Santa Monica, California.

Overview based on verified provider data

Quick Facts

  • 3.3
  • 43 years of experience
  • 25 insurance plans accepted
  • Universitatea De Medicina Si Farmacie Iuliu Hatieganu
  • 4 written reviews
  • 1 specialty
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Spent time with me
  • Provided follow-up after the visit

Office Locations

Dr. John Leon Gruen has 4 locations

Mission Community Hospital

14850 Roscoe BlvdPanorama City, CA 91402

Providence Saint Johns Health Center

2121 Santa Monica BlvdSanta Monica, CA 90404

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Dr. John Leon Gruen, MDDr. Adama Diarra, DODr. Rajmeet Kaur Mann, MDDr. Suma Oommen, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.3 
5 
0 
4.5 
43 Years of Experience 14 Years of Experience 8 Years of Experience 33 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, French, Bambara Speaks English Speaks English, Spanish, Hindi, Marathi, Malayalam, Tamil
Panorama City , CATigard , ORRocklin , CALake Forest , CA
Med School: Universitatea De Medicina Si Farmacie Iuliu Hatieganu Med School: Arizona College of Osteopathic Medicine Med School: American University Of Antigua College Of Medicine Med School: Christian Medical College
Current Profile
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Insurance Plans Accepted by Dr. John Leon Gruen

  • Aetna
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • CalOptima - Medicaid (Managed)
  • Cigna
  • Contra Costa Health Plan
  • Health Net - HMO
  • Humana
  • Kaiser Permanente
  • Kaiser Permanente - DHMO
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • L.A. Care Health Plan - Medicaid
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Optum Health
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • Western Health Advantage

Medical Specialties

Dr. John Leon Gruen has the following specialty

Certifications, License, & Education

43 Years Experience

Dr. John Leon Gruen holds an active medical license in the state of California.

Medical License

Medical Doctor with an active medical license in the state of California that expires in 2027.

Education & Training

Medical School

Graduated from Universitatea De Medicina Si Farmacie Iuliu Hatieganu in 1983.

NPI Number

Dr. Gruen's NPI number is 1619036365.

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Frequently Asked Questions

Where is Dr. John Gruen's office located?
Dr. John Gruen's office is located at 13651 Willard St, Panorama City, CA, 91402.
Does Dr. John Gruen accept virtual/telehealth appointments?
Dr. John Gruen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. John Gruen?
You can find contact information for Dr. John Gruen here on Vitals.
Does Dr. John Gruen accept my insurance?
You can see the insurance plans that Dr. John Gruen accepts on their Vitals profile.
Is Dr. John Gruen accepting new patients?
Dr. John Gruen has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards

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