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

Individual provider Surgery Physician · NPI 1003865023

John H Sun, MD is a Colorectal Surgery (Proctology) in Parker, Colorado. Graduated from University of Colorado School of Medicine, Denver in 1990, 36 years ago. Practices with Portercare Adventist Health System, a 767-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
36
Trained at
University of Colorado School of Medicine, Denver
Licensed in
CO
In the registry since
2006
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

9397 Crown Crest Blvd Ste 201
Parker, CO 80138-8575
Phone: (303) 320-0699
Fax: (303) 320-0897
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 35479 (CO)

Record details

NPI number1003865023
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 8, 2006
Last updated in NPPESJune 26, 2009
Mailing address9397 Crown Crest Blvd, Suite 201, Parker, CO 80138-8575

Medicare enrollment

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

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1990 (36 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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