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

Karen Chunguhn Kim, MD

Individual provider Internal Medicine Physician · NPI 1639385479

Karen Chunguhn Kim, MD practises Gastroenterology in Stanford, California. Graduated from Stanford University School of Medicine in 2005, 21 years ago. Practices with Stanford Health Care, a 3,085-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and New York.

Years since qualifying
21
Trained at
Stanford University School of Medicine
Licensed in
CA, NY
In the registry since
2007
Specialties on file
3
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

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
Show map & directions

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

Additional practice locations (1)

  • 1780 Hanshaw Rd, Ithaca, NY 14850-9105 — (607) 257-5858

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence C182389 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence C182389 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 260998 (NY)

Record details

NPI number1639385479
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2007
Last updated in NPPESApril 25, 2024
Certification dateApril 25, 2024

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 112 times · 82nd percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 72 times · 70th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients439
Services billed 825 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Stanford Health Care

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3085 clinicians in the practice; 12 are shown here.

Other providers in Stanford