Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Sangik Oh, MD

Individual provider Gastroenterology Physician · NPI 1679550867

Sangik Oh, MD practises Gastroenterology in Tacoma, Washington. Graduated from Tufts University School of Medicine in 1995, 31 years ago. Practices with Washington Gastroenterology PLLC, a 143-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
31
Trained at
Tufts University School of Medicine
Licensed in
WA
In the registry since
2005
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

1112 6th Ave 200
Tacoma, WA 98405-4040
Phone: (253) 272-8664
Fax: (253) 428-8136
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD44145 (WA)

Record details

NPI number1679550867
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 28, 2005
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Washington Gastroenterology Pllc — 143 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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 41 times · 59th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 35 times · 58th 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 patients383
Services billed 519 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 Washington Gastroenterology PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 143 clinicians in the practice; 12 are shown here.

Other providers in Tacoma