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

Yee Chuan Ang, MD

Individual provider Internal Medicine Physician · NPI 1104138668

Yee Chuan Ang, MD is an Internal Medicine Physician in Billings, Montana. Practices as a sole proprietor and works from 3 locations. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2010
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

801 N 29th St
Billings, MT 59101
Phone: (406) 238-2500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 759 Chestnut St, Springfield, MA 01199-1001 — (413) 794-4373
  • 759 Chestnut St, Springfield, MA 01199-1001 — (413) 794-4373

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 245012 (MA)

Record details

NPI number1104138668
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 12, 2010
Last updated in NPPESApril 23, 2019

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