Doctor profile · Federal record

Dr. Nicholas Oblizajek

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Rochester, MN

  • NPI 1356705016
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 1St St Sw
Rochester, MN 559050001
(507) 284-2511

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
August 6, 2020
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Minnesota #62600

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356705016. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
251
Distinct HCPCS
7
Medicare allowed
$23,391
HCPCS Description Services Patients Avg allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 78 78 $5
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 58 58 $243
91122 Study of rectum sensitivity and function 41 41 $86
45380 Biopsy of large bowel using a flexible endoscope 25 25 $58
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 21 21 $86
91065 Measurement of hydrogen in breath to test for stomach and bowel symptoms 17 15 $10
99205 New patient office or other outpatient visit, 60-74 minutes 11 11 $181

In context: peer comparison

Among 60 peers in this city , average services per provider: 34. This provider delivers 7.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
43
Patients
0
Total drug cost
$13,111
Drug Type Claims Patients Total cost
Omeprazole Generic 17 0 $431
Linzess (Linaclotide) Brand 13 0 $12,299
Pantoprazole Sodium Generic 13 0 $381

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicholas Oblizajek's medical specialty?
Dr. Nicholas Oblizajek practices Gastroenterology Physician in Rochester, MN.
Where does Dr. Nicholas Oblizajek practice?
Dr. Nicholas Oblizajek practices at 200 1St St Sw, Rochester, MN 559050001. Office phone: 5072842511.
What is Dr. Nicholas Oblizajek's NPI?
Dr. Nicholas Oblizajek's National Provider Identifier (NPI) is 1356705016, issued by NPPES.
Does Dr. Nicholas Oblizajek accept Medicare assignment?
Yes. Dr. Nicholas Oblizajek accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nicholas Oblizajek commonly perform?
Top Medicare-reported procedures in 2023: Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Study of rectum sensitivity and function (HCPCS 91122). Source: CMS Medicare Physician & Other Practitioners file.