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

Dr. William Stephen Lefler Jr., MD

Individual provider Nephrology Physician · NPI 1023235058

Dr. William Stephen Lefler Jr., MD is a Nephrology in Twin Falls, Idaho. Graduated from Medical College of Georgia School of Medicine in 2007, 19 years ago. Practices with Banner Hospital Based Physicians Colorado LLC, a 82-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Idaho and Nevada.

Years since qualifying
19
Trained at
Medical College of Georgia School of Medicine
Licensed in
ID, NV
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

746 N College Rd Ste A
Twin Falls, ID 83301-3486
Phone: (208) 814-7230
Show map & directions

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

Additional practice locations (1)

  • 1600 Specht Point Rd Ste 127, Fort Collins, CO 80525-4311 — (970) 221-3589

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence MC-1695 (ID)
Nephrology Physician Taxonomy 207RN0300X · Licence 19535 (NV)

Record details

NPI number1023235058
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 19, 2007
Last updated in NPPESDecember 1, 2022
Certification dateDecember 1, 2022

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolMEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Banner Hospital Based Physicians Colorado Llc — 82 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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