Dr. Robin Ann Royster , MD
Internal Medicine • Grant, MI
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Robin Royster has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Robin Royster, MD was a registered Internal Medicine practicing in Grant, MI. Throughout an active medical career spanning 18 years, Dr. Royster provided care at the practice location at 11 N MAPLE ST until profile deactivation on 2025-09-18.
Practice Location & Contact Primary Location
11 N Maple St
Grant, MI 493277900
Specialty Benchmarks & Practice Insights
Comparative analytics for Internal Medicine in Grant, MI
Practicing in Grant, MI (6010 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Physician Assistant
Physician Assistant (Certified)
Dentist - General Practice
Doctor of Dental Medicine
Social Worker - Clinical
Licensed Master Social Worker
Counselor - Professional
Licensed Professional Counselor
Physician Assistant
Physician Assistant
Physician Assistant - Medical
Physician Assistant (Certified)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on September 18, 2025
NPI status registered as active in NPPES database
Registered at 11 N MAPLE ST, GRANT, MI 493277900 (Tel: 2318340444)
Registered at PO BOX 7, GRANT, MI 493270007 (Tel: 2318340444)
Recorded as ROBIN ROYSTER, M.D.
Internal Medicine (License #4301406659 in MI)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
Po Box 7
Grant, MI 493270007
Phone: 2318340444
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