Marc Fallah, MD
NPI 1750356804 · Gastroenterology Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Fallah, MD is a Gastroenterology Physician provider in Naperville, IL (NPI 1750356804).
Provider details
- NPI number
- 1750356804
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036108043 (IL)
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
1,608 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 236 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 179 | $93 |
| Liver Function Blood Test Panel80076 | 160 | $8 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 109 | $115 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 76 | $50 |
| 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 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 224 | 87 |
| Ursodiol | 195 | 44 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 184 | 182 |
| Omeprazole | 142 | 46 |
| Azathioprine | 126 | 28 |
| Famotidine | 92 | 32 |
| Carvedilol | 62 | 21 |
| Peg3350/Sod Sulf,bicarb,cl/Kcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$326 across 9 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
- 2006-02-22
- Last updated
- 2023-08-07
- Certified
- 2023-08-07
Frequently asked questions
- What is Marc Fallah's NPI number?
- Marc Fallah's National Provider Identifier (NPI) is 1750356804, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Fallah's specialty?
- Marc Fallah is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Fallah located?
- Marc Fallah's practice location on file with NPPES is 100 Spalding Dr, Naperville, IL 60540-6550.
- What is Marc Fallah's phone number?
- The practice phone number listed in the NPPES registry for Marc Fallah is (630) 717-2600.
- Does Marc Fallah accept Medicare?
- Marc Fallah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Fallah's NPI active?
- Yes — Marc Fallah's NPI (1750356804) is active in the NPPES registry as of the last update on 2023-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.