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

Gregory James Schleis, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1154783207

Gregory James Schleis, MD is an Endocrinology in Avon, Colorado. Graduated from University of Wisconsin School of Medicine in 2016, 10 years ago. Practices with Multicare Health System, a 2,302-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado and South Carolina.

Years since qualifying
10
Trained at
University of Wisconsin School of Medicine
Licensed in
CO, SC
In the registry since
2016
Specialties on file
2
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

50 Buck Creek Rd Ste 300
Avon, CO 81620-5428
Phone: (970) 926-6340
Fax: (970) 926-6348
Show map & directions

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

Additional practice locations (1)

  • 1025 Verdae Blvd, Greenville, SC 29607-4032 — (864) 242-4683

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence CDR.0007037 (CO)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 85787 (SC)

Record details

NPI number1154783207
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2016
Last updated in NPPESJuly 10, 2026
Certification dateJuly 10, 2026
Mailing addressPo Box 4330, Avon, CO 81620-4330

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Multicare Health System — 2302 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare