Doctor profile · Federal record

Dr. Sun Jung Oh

Gastroenterology Physician (CMS: Gastroenterology) · Baltimore, MD

  • NPI 1356796890
  • Accepts Medicare
  • MIPS 74.4 / 100 · 2023
  • 10 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
600 N Wolfe St
Baltimore, MD 212870005
(104) 955-2635
fax (410) 614-8337

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
April 3, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Maryland #D0094119

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356796890. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
560
Distinct HCPCS
10
Medicare allowed
$73,742
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 83 62 $133
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 80 62 $122
45380 Biopsy of large bowel using a flexible endoscope 66 66 $102
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 51 51 $254
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 49 49 $136
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43 42 $116
91010 Study of esophagus to assess movement 39 39 $64
99215 Established patient office or other outpatient visit, 40-54 minutes 34 30 $185
91037 Monitoring and recording of esophageal function through nasal tube with electrode 19 19 $48
91038 Prolonged monitoring and recording of esophageal function through nasal tube with electrode 19 19 $56

In context: peer comparison

Among 49 peers in this city , average services per provider: 49. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$236
Transactions
7
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 1 $97.63
ABBVIE INC. 3 $54.18
QOL Medical, LLC 1 $38.64
Janssen Biotech, Inc. 1 $26.69
IRONWOOD PHARMACEUTICALS, INC 1 $19.09

By nature of payment

Food and Beverage
$236

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
135
Patients
36
Total drug cost
$27,281
Drug Type Claims Patients Total cost
Omeprazole Generic 36 0 $270
Famotidine Generic 31 0 $2,233
Linzess (Linaclotide) Brand 23 0 $23,910
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 23 23 $559
Pantoprazole Sodium Generic 22 13 $308

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sun Jung Oh's medical specialty?
Dr. Sun Jung Oh practices Gastroenterology Physician in Baltimore, MD.
Where does Dr. Sun Jung Oh practice?
Dr. Sun Jung Oh practices at 600 N Wolfe St, Baltimore, MD 212870005. Office phone: 1049552635.
What is Dr. Sun Jung Oh's NPI?
Dr. Sun Jung Oh's National Provider Identifier (NPI) is 1356796890, issued by NPPES.
Does Dr. Sun Jung Oh accept Medicare assignment?
Yes. Dr. Sun Jung Oh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sun Jung Oh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.