Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Harelle Cassy Duncan, MD

Individual provider Internal Medicine Physician · NPI 1174718837

Dr. Harelle Cassy Duncan, MD is an Internal Medicine in Jacksonville, Florida. Qualified in 2006, 20 years ago. Practices with Central Florida Inpatient Medicine LLC, a 117-clinician group and accepts Medicare assignment. Licensed in Florida and Georgia.

Years since qualifying
20
Licensed in
FL, GA
In the registry since
2007
Specialties on file
2
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

10365 Hood Rd S Ste 204
Jacksonville, FL 32257-3261
Phone: (904) 326-0181
Fax: (855) 538-2401
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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 ME105010 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 062882 (GA)

Record details

NPI number1174718837
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 6, 2007
Last updated in NPPESAugust 7, 2026
Certification dateAugust 7, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Central Florida Inpatient Medicine Llc — 117 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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