Mazen Issa, MD
NPI 1598755464 · Gastroenterology Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mazen Issa, MD is a Gastroenterology Physician provider in Cleveland, OH (NPI 1598755464).
Provider details
- NPI number
- 1598755464
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-079269 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,374 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 | 450 | $120 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 151 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 150 | $75 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 140 | $76 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 136 | $216 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 583 | 220 |
| Famotidine | 279 | 93 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 96 | 95 |
| Sucralfate | 81 | 40 |
| Lactulose | 59 | 39 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 54 | 53 |
| Omeprazole | 45 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$147 across 7 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
Registry dates
- Enumerated
- 2005-10-24
- Last updated
- 2021-01-19
- Certified
- 2021-01-19
Frequently asked questions
- What is Mazen Issa's NPI number?
- Mazen Issa's National Provider Identifier (NPI) is 1598755464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mazen Issa's specialty?
- Mazen Issa is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mazen Issa located?
- Mazen Issa's practice location on file with NPPES is 18780 Bagley Rd Ste 200, Cleveland, OH 44130-3304.
- What is Mazen Issa's phone number?
- The practice phone number listed in the NPPES registry for Mazen Issa is (440) 816-4546.
- Does Mazen Issa accept Medicare?
- Mazen Issa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mazen Issa's NPI active?
- Yes — Mazen Issa's NPI (1598755464) is active in the NPPES registry as of the last update on 2021-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.