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).
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The overall average patient rating of Dr. Henry Grainger is Excellent.
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Specialties & Research
Dr. Henry Grainger, DO, MD is board certified in Internal Medicine and Geriatric Medicine.
- He has special expertise in 1 area:
- Alzheimer's Disease
Education & Awards
Dr. Grainger graduated from University of Missouri at Kansas City. He has 3 awards.
Dr. Grainger has 9 hospital affiliations:
- Memorial Hermann Northwest Hospital
- The Methodist Hospital
Similar doctors nearby
- Additional Information
- Dr. Henry Jack Grainger DO and MD is a male Internist, has 39 years of experience and practices in Internal Medicine and Geriatric Medicine.
- Where does Dr. Henry J. Grainger practice?
- Dr. Henry Grainger has 1 office location.
Dr. Henry Grainger practices Internal Medicine and Geriatric Medicine near Houston, TX.
See Houston Internists and Houston Geriatric Doctors.