Doctor profile · Federal record
Dr. Catherine Ly, D.O.
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Cleveland, OH
- NPI 1750523783
- Accepts Medicare
- 17 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
9500 Euclid Ave
Cleveland, OH 441951143
(216) 444-2200 - Additional location
-
1775 W Dempster St
Park Ridge, IL 600681143
(847) 723-6200
fax (847) 696-3391 - Mailing address
-
21495 Avalon Dr
Rocky River, OH 441161125
Credentials & registration
- NPI registered
- April 2009 — 17 yrs on file
- Profile last updated
- July 8, 2019
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Ohio #34.013947 · Illinois #036.129366
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1750523783. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
577
Distinct HCPCS
10
Medicare allowed
$67,081
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 99 | 76 | $93 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 80 | 66 | $63 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 72 | 71 | $135 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 71 | 71 | $130 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 66 | 66 | $96 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 62 | 61 | $97 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 62 | 62 | $129 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 28 | 28 | $243 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 25 | 25 | $236 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 12 | 12 | $79 |
In context: peer comparison
Among 44 peers in Cleveland Gastroenterology Physician, average services per provider: 35. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$877
Transactions
41
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Madrigal Pharmaceuticals | 4 | $316.73 | |
| Abbvie INC. | 22 | $265.26 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $86.90 | |
| Lilly USA, LLC | 4 | $86.31 | |
| Ardelyx, INC. | 1 | $19.71 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $19.30 | |
| Celltrion USA INC. | 1 | $19.17 | |
| Pfizer INC. | 1 | $16.78 | |
| Genzyme Corporation | 1 | $16.35 | |
| Braintree Laboratories, INC. | 1 | $15.36 | |
| Gilead Sciences, INC. | 1 | $14.71 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
870
Patients
405
Total drug cost
$109,625
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 306 | 118 | $4,515 |
| Famotidine | Generic | 111 | 51 | $1,802 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 104 | 101 | $1,619 |
| Omeprazole | Generic | 88 | 30 | $967 |
| Linzess (Linaclotide) | Brand | 50 | 12 | $46,137 |
| Sucralfate | Generic | 42 | 23 | $3,750 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 31 | 30 | $541 |
| Mesalamine | Generic | 27 | 0 | $39,444 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 26 | 13 | $3,353 |
| Dicyclomine Hcl | Generic | 20 | 0 | $294 |
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Ly's medical specialty?
Dr. Catherine Ly practices Gastroenterology Physician in Cleveland, OH.
Where does Dr. Catherine Ly practice?
Dr. Catherine Ly practices at 9500 Euclid Ave, Cleveland, OH 441951143. Office phone: 2164442200.
What is Dr. Catherine Ly's NPI?
Dr. Catherine Ly's National Provider Identifier (NPI) is 1750523783, issued by NPPES.
Does Dr. Catherine Ly accept Medicare assignment?
Yes. Dr. Catherine Ly accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Ly commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.