Doctor profile · Federal record

Dr. Ellen Dy, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Grand Junction, CO

  • NPI 1053317578
  • Accepts Medicare
  • MIPS 99.5 / 100 · 2023
  • 38 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1035 Wellington Ave
Grand Junction, CO 815018104
(970) 242-6600
fax (970) 241-8443

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
October 9, 2023
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Colorado #DR.0058821
Medicaid
IA #0139659

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1053317578. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
665
Distinct HCPCS
10
Medicare allowed
$95,476
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 136 135 $250
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 127 117 $77
45380 Biopsy of large bowel using a flexible endoscope 92 90 $135
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 51 51 $182
99213 Established patient office or other outpatient visit, 20-29 minutes 35 26 $92
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 34 34 $183
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 31 28 $50
43249 Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 30 29 $129
45381 Injection beneath lining of large bowel using a flexible endoscope 28 27 $16
99204 New patient office or other outpatient visit, 45-59 minutes 25 25 $169

In context: peer comparison

Among 6 peers in this city , average services per provider: 53. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,094
Transactions
45
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 16 $390.49
Takeda Pharmaceuticals U.S.A., Inc. 10 $180.48
Phathom Pharmaceuticals, Inc. 3 $172.19
Gilead Sciences, Inc. 3 $74.37
Salix Pharmaceuticals, a division of Bausch Health US, LLC 2 $44.45
Organon Llc 2 $30.15
Janssen Biotech, Inc. 1 $27.03
Regeneron Healthcare Solutions, Inc. 1 $24.00
Merck Sharp & Dohme LLC 1 $22.90
Ipsen Biopharmaceuticals, Inc 1 $21.92
Ferring Pharmaceuticals Inc. 1 $21.88
GENZYME CORPORATION 1 $18.41
Celgene Corporation 1 $18.32
Lilly USA, LLC 1 $17.59
AIMMUNE THERAPEUTICS, INC. 1 $16.60

By nature of payment

Food and Beverage
$1,094

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
138
Patients
60
Total drug cost
$1,581
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 110 46 $1,280
Omeprazole Generic 28 14 $300

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ellen Dy's medical specialty?
Dr. Ellen Dy practices Gastroenterology Physician in Grand Junction, CO.
Where does Dr. Ellen Dy practice?
Dr. Ellen Dy practices at 1035 Wellington Ave, Grand Junction, CO 815018104. Office phone: 9702426600.
What is Dr. Ellen Dy's NPI?
Dr. Ellen Dy's National Provider Identifier (NPI) is 1053317578, issued by NPPES.
Does Dr. Ellen Dy accept Medicare assignment?
Yes. Dr. Ellen Dy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ellen Dy commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.