Sun Jung Oh
NPI 1356796890 · Gastroenterology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sun Jung Oh is a Gastroenterology Physician provider in Baltimore, MD (NPI 1356796890).
Provider details
- NPI number
- 1356796890
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0094119 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
161 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $131 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 26 | $127 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 20 | $104 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 20 | $75 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 19 | $251 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 37 | 13 |
| Pantoprazole Sodium | 22 | — |
| Omeprazole | 20 | — |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 20 | 18 |
| Linaclotidebrand: Linzess | 18 | — |
| Pyridostigmine Bromide | 17 | — |
| Prucalopride Succinatebrand: Motegrity | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$236 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-05-03
- Last updated
- 2024-04-03
- Certified
- 2023-11-19
Frequently asked questions
- What is Sun Jung Oh's NPI number?
- Sun Jung Oh's National Provider Identifier (NPI) is 1356796890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sun Jung Oh's specialty?
- Sun Jung Oh is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Sun Jung Oh located?
- Sun Jung Oh's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Sun Jung Oh's phone number?
- The practice phone number listed in the NPPES registry for Sun Jung Oh is (104) 955-2635.
- Does Sun Jung Oh accept Medicare?
- Sun Jung Oh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sun Jung Oh's NPI active?
- Yes — Sun Jung Oh's NPI (1356796890) is active in the NPPES registry as of the last update on 2024-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.