NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1245202704 M.D.
Verify on CMS → Mark Dubin, M.D.
Gastroenterology Physician in Hoffman Estates, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 17,061 in Gastroenterology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 437 beneficiaries · Gastroenterology Physician avg: 848
Industry payments
$842.45
10 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Mark Dubin, M.D. filed 1,031 Medicare Part D claims in 2024 as a Gastroenterology Physician in Hoffman Estates, Illinois.
- 1K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥75th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Mark Dubin, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1245202704), first enumerated 02/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,031 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$842.45 in reported industry payments (10 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Mark Dubin, M.D.'s individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1245202704 · Gastroenterology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1245202704
- ENUM-LEGACY 2006
- TAX-MID 17K Gastroenterology Physician
- RX-MID 1,031
- BOOK-LIGHT 724 in Illinois
- PHOTO-ENUM Roxan Saidi, MD, MHS · 2006
Mark Dubin, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,031 ≥ 75th percentile 75% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Mark Dubin, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Dubin, M.D.?
Quality data not reportedPrimary specialty
Gastroenterology Physician
Medicare Part D claims
1,031 22% vs specialty avg
Specialty distribution in Illinois
How Gastroenterology Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Gastroenterology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1245202704 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/07/2006 |
Hospital and facility affiliations
Facilities where Mark Dubin, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Dupage Medical Group Ltd
Schaumburg, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mark Dubin, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$842
Largest payer
AIMMUNE THERAPEUTICS, INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Mark Dubin, M.D.. To verify Mark Dubin, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,031
Total Claims
$416K
Total Drug Cost
437
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,178.133
- Total Day Supply
- 56,441
- Generic Drug Cost
- $30K
- Antibiotic Claims
- 34
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 1.08
- Gender Split
- 51% female / 49% male
- Age Distribution
- <65: 29, 65-74: 250, 75-84: 133, 85+: 25
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mark Dubin, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Omeprazole
Omeprazole
189 claims
- Sod Sulf-Potass Su…
Sod Sulf-Potass Sulf-Mag Sulf
139 claims
- Famotidine
Famotidine
137 claims
- Pantoprazole Sodium
Pantoprazole Sodium
119 claims
- Gavilyte-G 46
Gavilyte-G
46 claims
- Linzess 36
Linzess
36 claims
- Dicyclomine Hcl 33
Dicyclomine Hcl
33 claims
- Peg 3350-Electrolyte 32
Peg 3350-Electrolyte
32 claims
| Drug | Claims |
|---|---|
| Omeprazole | 189 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 139 |
| Famotidine | 137 |
| Pantoprazole Sodium | 119 |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 46 |
| Linzess Linaclotide | 36 |
| Dicyclomine Hcl | 33 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 32 |
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 29 |
| Mesalamine | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Mark Dubin, M.D. fits within the Gastroenterology Physician landscape nationally.
17,061
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
848
Avg Claims per Provider
Mark Dubin, M.D.'s 1,031 claims are above the specialty average of 848.
Nationwide Gastroenterology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Dubin, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gastroenterology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Dubin.
One of 724 Gastroenterology Physician providers enrolled in Illinois, 5 are shown here.
Dr. Abdul Aadam
M.D.
Chicago, IL
Dr. Richard Aaronson
M.D.
Olympia Fields, IL
Dr. Abdelhai Abdelqader
MD
Maywood, IL
Dr. Mustafa Abdul-Hussein
MD
Mattoon, IL
Abdullah Abdussalam
Des Plaines, IL
Compare Gastroenterology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark Dubin, M.D.'s specialty? ▼
Mark Dubin, M.D. specializes in Gastroenterology Physician and practices in Hoffman Estates, Illinois. Credentials: M.D..
How much does Mark Dubin, M.D. prescribe under Medicare Part D? ▼
In 2024, Mark Dubin, M.D. wrote 1,031 Medicare Part D claims totaling $416K in drug costs for 437 beneficiaries.
Where is Mark Dubin, M.D. located? ▼
Mark Dubin, M.D. is located at 2359 HASSELL RD, Hoffman Estates, IL, 60169. Phone: (847) 843-7030.
What is Mark Dubin, M.D.'s NPI number? ▼
Mark Dubin, M.D.'s National Provider Identifier (NPI) is 1245202704, issued on 02/07/2006.
How many Gastroenterology Physician providers are there in the US? ▼
There are 17,061 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 848 Medicare Part D claims per year.
What drugs does Mark Dubin, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark Dubin, M.D.'s most frequently prescribed drugs include Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Dubin, M.D. accept Medicare? ▼
Mark Dubin, M.D. appears in CMS Medicare data with 1,031 Part D claims and 437 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Dubin, M.D.'s credentials? ▼
Mark Dubin, M.D.'s NPI is 1245202704 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.