Mark Dubin, M.D.
NPI 1245202704 · Gastroenterology Physician · Hoffman Estates, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dubin, M.D. is a Gastroenterology Physician provider in Hoffman Estates, IL (NPI 1245202704).
Provider details
- NPI number
- 1245202704
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-078199 (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
1,240 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 | 112 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 106 | $94 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 96 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $132 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 74 | $10 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
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 |
|---|---|---|
| Omeprazole | 189 | 74 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 139 | 133 |
| Famotidine | 137 | 63 |
| Pantoprazole Sodium | 119 | 48 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 46 | 46 |
| Linaclotidebrand: Linzess | 36 | 13 |
| Dicyclomine Hcl | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$842 across 10 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
- 2006-02-07
- Last updated
- 2023-08-07
- Certified
- 2023-08-07
Frequently asked questions
- What is Mark Dubin's NPI number?
- Mark Dubin's National Provider Identifier (NPI) is 1245202704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dubin's specialty?
- Mark Dubin is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Dubin located?
- Mark Dubin's practice location on file with NPPES is 2359 Hassell Rd, Hoffman Estates, IL 60169-2102.
- What is Mark Dubin's phone number?
- The practice phone number listed in the NPPES registry for Mark Dubin is (847) 843-7030.
- Does Mark Dubin accept Medicare?
- Mark Dubin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dubin's NPI active?
- Yes — Mark Dubin's NPI (1245202704) 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.