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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).


Our records indicate this doctor is retired.

Learn more about Dr. Jack Greenberg:

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Specialties & Research

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. Greenberg graduated from Temple University Physicians, Philadelphia.

> > > > Dr. Jack Greenberg, MD

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Additional Information
Dr. Jack Lawrence Greenberg MD is a male Family Practitioner, has 47 years of experience and practices in Family Medicine.
Where does Dr. Jack L. Greenberg practice?
Dr. Jack Greenberg has 1 office location.
Dr. Jack Greenberg practices Family Medicine near Brea, CA.
See Brea Family Physicians.