Catherine Ly, D.O.
NPI 1750523783 · Gastroenterology Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Ly, D.O. is a Gastroenterology Physician provider in Cleveland, OH (NPI 1750523783).
Provider details
- NPI number
- 1750523783
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036.129366 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
704 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 | 152 | $117 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 105 | $125 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 95 | $88 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 79 | $82 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 63 | $239 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 308 | 133 |
| Omeprazole | 176 | 67 |
| Famotidine | 95 | 44 |
| Linaclotidebrand: Linzess | 56 | 16 |
| Dicyclomine Hcl | 43 | 18 |
| Sucralfate | 28 | 12 |
| Cholestyramine (with Sugar)brand: Cholestyramine | 27 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$877 across 41 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
Additional practice locations (1)
- 1775 W Dempster StPark Ridge, IL 60068-1143Phone: (847) 723-6200Fax: (847) 696-3391
Registry dates
- Enumerated
- 2009-04-06
- Last updated
- 2019-07-08
Frequently asked questions
- What is Catherine Ly's NPI number?
- Catherine Ly's National Provider Identifier (NPI) is 1750523783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Ly's specialty?
- Catherine Ly is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Ly located?
- Catherine Ly's practice location on file with NPPES is 9500 Euclid Ave, Cleveland, OH 44195-1143.
- What is Catherine Ly's phone number?
- The practice phone number listed in the NPPES registry for Catherine Ly is (216) 444-2200.
- Does Catherine Ly accept Medicare?
- Catherine Ly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Ly's NPI active?
- Yes — Catherine Ly's NPI (1750523783) is active in the NPPES registry as of the last update on 2019-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.