Dr. Sangik Oh, MD
- Medicare services, 2024
- 437
- Medicare patients, 2024
- 383
- Part D claims, 2024
- 1,322
- Hospital affiliations
- 4
- Industry payments
- $68
- Practice address
- 1135 116th Ave NE, Bellevue, WA 98004
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eastside Endoscopy Center,Pllc - HOPD
Acute Care Hospital outpatient department · Bellevue, Washington
Find Dr. Oh's professional email, personal email and mobile number
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Dr. Sangik Oh is a gastroenterologist in Bellevue, Washington
Dr. Oh practices at Eastside Endoscopy Center,Pllc - HOPD in Bellevue, Washington.
Dr. Oh's NPI, 1679550867, was assigned on December 28, 2005. Dr. Oh graduated from Tufts University School of Medicine in 1995. Dr. Oh holds Washington license MD44145.
- NPI
- 1679550867NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577523786
- NPI enumeration date
- December 28, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sangik Oh practices at Eastside Endoscopy Center,Pllc - HOPD in Bellevue, Washington
Dr. Oh's primary practice is Eastside Endoscopy Center,Pllc - HOPD, at 1135 116th Ave NE, Bellevue, WA 98004.
- Eastside Endoscopy Center,Pllc - HOPD1135 116th Ave NE, Bellevue, WA 98004
Source: Dmand AI Affiliation Data
Dr. Sangik Oh is affiliated with 9 sites of care and 3 medical groups
Dr. Oh's primary practice is Eastside Endoscopy Center,Pllc - HOPD in Bellevue, Washington. Dr. Oh is also affiliated with Overlake Medical Center. The medical group on file is Washington Gastroenterology. Dmand AI also links Dr. Oh to 3 more hospitals, 3 group practices and clinics, 2 medical groups and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sangik Oh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oh practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eastside Endoscopy Center,Pllc - HOPD | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sangik Oh is one of 434 gastroenterologists in Washington
Gastroenterology is Dr. Oh's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Oh is licensed in Washington.
Specialties and state licenses
- Gastroenterology, WashingtonPrimary
Gastroenterologists near Dr. Oh
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Sangik Oh billed Medicare for 437 services in 2024
CMS data shows 437 Medicare services from Dr. Oh across 8 procedure codes in 2024, for 383 Medicare patients. Medicare paid $39,001 for them.
Dr. Oh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2472024: 17629%
- Tests and treatments
- 2023: 1222024: 1242%
- Surgery
- 2023: 2262024: 12146%
- Other services
- 2023: 302024: 1647%
Where Dr. Oh's Medicare services took place, 2024
- In an office33376%
- In a facility10424%
Dr. Oh compared with the Washington median for gastroenterologists, 2024
- Dr. Oh
- Washington median
- Medicare services
- 437vs 35623% above
- Medicare patients
- 383vs 24457% above
- Part D claims
- 1,193vs 2724.4 times
Medians across 433 gastroenterologists in Washington with Dmand AI profiles that report each measure.
Dr. Oh's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sangik Oh treated 383 Medicare patients in 2024, average age 72
CMS counts 383 Medicare patients who saw Dr. Oh in 2024. The largest group is 65 to 74, with 191 patients. 73% of them have high cholesterol, and 70% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Oh's median patient age at 62, with 54% women.
Dr. Oh's Medicare patients by age, 2024
Dr. Oh's Medicare patients by sex, 2024
- Women23962%
- Men14438%
Chronic conditions among Dr. Oh's Medicare patients, 2024
- High cholesterol73%
- High blood pressure70%
- Arthritis44%
- Diabetes27%
- Ischemic heart disease23%
- Chronic kidney disease19%
- Mood disorders19%
- Anxiety18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sangik Oh wrote 1,322 Medicare Part D claims in 2024
In 2024, Dr. Oh wrote 1,322 Medicare Part D claims for 575 patients. 77% of them were for generic drugs. CMS names the drug for 1,193 of them, across 26 drugs with 11 or more claims each, at $256,847 in total drug cost. In 2023, CMS named 1,227 claims across 27 drugs.
Dr. Oh's Part D claims by kind of drug, 2024
- Generic1,017 claims77%
- Brand-name305 claims23%
Dr. Oh's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Oh's Part D claims, 2024
- Antibiotics3%38 of 1,322 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2272024: 1,1933%
Drugs named by CMS: 26 in 2024, 27 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Sangik Oh ranks in the 61st percentile for colonoscopy in Medicare
Dr. Oh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Oh as offering telehealth. CMS counts 44 procedures of colonoscopy by Dr. Oh, more than 61% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Oh ranks in Medicare procedure volume
- Colonoscopy
- 61st percentile44 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 58th percentile36 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Sangik Oh received $68 in industry payments from 2017 to 2019
CMS Open Payments shows 2 general payments to Dr. Oh from 2 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Celgene Corporation paid the most, $43.
General payments to Dr. Oh by program year, 2017 to 2019
Companies that paid Dr. Oh the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sangik Oh graduated from Tufts University School of Medicine
Dr. Oh graduated from Tufts University School of Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sangik Oh's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sangik Oh
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Sangik Oh's NPI number?
Dr. Sangik Oh's NPI number is 1679550867. It was assigned on December 28, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Sangik Oh?
Dr. Sangik Oh is a gastroenterologist in Bellevue, Washington. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Sangik Oh practice?
Dr. Oh practices at 1135 116th Ave NE, Bellevue, WA 98004. Dr. Oh's primary practice is Eastside Endoscopy Center,Pllc - HOPD in Bellevue, Washington. Dmand AI also links Dr. Oh to 3 hospitals, 3 group practices and clinics, 2 medical groups and 1 ambulatory surgery center.
What is Dr. Sangik Oh's medical license number?
Dr. Oh holds Washington license MD44145.
Which hospitals is Dr. Sangik Oh affiliated with?
Dr. Oh is affiliated with Overlake Medical Center. Dmand AI links Dr. Oh to 3 more hospitals.
What medical group is Dr. Sangik Oh part of?
Dr. Oh is linked to Washington Gastroenterology. Dmand AI links Dr. Oh to 2 more medical groups.
Does Dr. Sangik Oh accept Medicare?
Yes. CMS data shows Dr. Oh billed Medicare for 437 services in 2024, and Dr. Oh accepts Medicare assignment.
Does Dr. Sangik Oh offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Oh as offering telehealth services.
How many Medicare patients does Dr. Sangik Oh see?
CMS counts 383 Medicare patients who saw Dr. Oh in 2024, with an average age of 72.
What services does Dr. Sangik Oh bill to Medicare?
In 2024, Dr. Oh's most billed Medicare services were digestive system test (91200), office visit, established patient (99214) and office visit, established patient (99213).
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Where did Dr. Sangik Oh go to medical school?
Dr. Oh graduated from Tufts University School of Medicine in 1995.
What drugs does Dr. Sangik Oh prescribe most?
In 2024 Medicare Part D data, Dr. Oh's most prescribed drugs by claims were Omeprazole, Peg-3350 And Electrolytes and Gavilyte-G.
Has Dr. Sangik Oh received payments from drug or device companies?
CMS Open Payments shows $68 in general payments to Dr. Oh from 2 companies from 2017 to 2019. The largest total came from Celgene Corporation.
How long has Dr. Sangik Oh been practicing?
Dr. Oh graduated from medical school in 1995, 31 years ago.
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