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

Josiah An, MD

Individual provider Hematology & Oncology Physician · NPI 1053791517

Josiah An, MD is an Internal Medicine in Winston Salem, North Carolina. Graduated from Southern Illinois University School of Medicine in 2015, 11 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Iowa, North Carolina and Washington.

Years since qualifying
11
Trained at
Southern Illinois University School of Medicine
Licensed in
IA, NC, WA
In the registry since
2015
Specialties on file
7
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

3333 Silas Creek Pkwy
Winston Salem, NC 27103-3013
Phone: (336) 277-8800
Fax: (336) 277-8850
Show map & directions

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

Additional practice locations (2)

  • 200 Hawkins Dr, Iowa City, IA 52242-1009 — (319) 384-9668
  • 201 16th Ave E, Seattle, WA 98112-5226 — (206) 326-3111

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 2021-01298 (NC)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence R10218 (IA)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence MD70049970 (WA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence R10218 (IA)
Internal Medicine Physician Taxonomy 207R00000X · Licence R10218 (IA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence R10218 (IA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence R10218 (IA)

Record details

NPI number1053791517
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 31, 2015
Last updated in NPPESDecember 17, 2025
Certification dateDecember 17, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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