Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael Denis Royster, MD

Individual provider Internal Medicine Physician · NPI 1184913899

Michael Denis Royster, MD is an Internal Medicine in Hyannis, Massachusetts. Qualified in 2011, 15 years ago. Practices with Physicians of Cape Cod Hospital, a 327-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
15
Licensed in
MA
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

27 Park St
Hyannis, MA 02601-5230
Phone: (508) 862-5976
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 258692 (MA)

Record details

NPI number1184913899
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 4, 2011
Last updated in NPPESJuly 26, 2026
Certification dateJuly 26, 2026
Mailing address47 Popple Bottom Road, Sandwich, MA 02563

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Physicians Of Cape Cod Hospital — 327 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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