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

Dr. Gregory Paul Calkins, MD

Individual provider Emergency Medicine Physician · NPI 1043291206

Dr. Gregory Paul Calkins, MD is an Emergency Medicine in Kamuela, Hawaii. Qualified in 1978, 48 years ago. Practices with Duerler Inc, an 8-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, Hawaii, Indiana and Ohio.

Years since qualifying
48
Licensed in
CA, HI, IN, OH
In the registry since
2005
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

65-1117 Ehiku Pl
Kamuela, HI 96743-7526
Phone: (513) 368-3602
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 64-1032 Mamalahoa Hwy Ste 306, Kamuela, HI 96743-8441 — (808) 769-5010

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD-6251 (HI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence G200602 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 35-043792 (OH)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 01031005A (IN)

Record details

NPI number1043291206
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 7, 2005
Last updated in NPPESNovember 14, 2025
Certification dateNovember 14, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Duerler Inc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Kamuela