Marc A. Dorfman, MD
Emergency Medicine Physician · Barrington, IL
Marc A. Dorfman, MD is an emergency medicine physician with a practice address in Barrington, Illinois, and NPI 1912908583, issued on Aug 4, 2005. Check the license (Illinois 036086890, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marc A. Dorfman
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 036086890 IL
036.086890 IL
Self-reported in NPPES; status is on the state search - Practice location
- 450 W Highway 22, Barrington, IL 60010
- Phone
- (847) 381-9600
- Enumerated
- Aug 4, 2005
- Record last updated
- Aug 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (616) 285-0846
- Medicare enrollment
- Enrolled (PECOS I20040609000255); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1991
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 450 W Highway 22
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Danielle BanksRegistered Dietitian1659245405
- Todd Bannen, M.D.Emergency Medicine Physician1952414682
- Tina Marie Bauman, RN, MSN, APN, AGN-BCClinical Nurse Specialist1407349343
- Eric Bessonny, M.D.Anesthesiology Physician1336147156
Verify Marc A. Dorfman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036086890Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
97 Medicare Part D claims for 73 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $54.45
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Cepamerica Illinois LLPChicago, IL
- Endeavor Health Medical GroupEvanston, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc A. Dorfman among 3,291 emergency medicine physician records in Illinois
Marc A. Dorfman, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1991 · median 2012 among the 1,867 with a school on file
- Record last updated2018 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 emergency medicine physician records list a practice address in Barrington
They are 15 of the 756 NPPES records with a practice address in Barrington, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Barrington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Todd Bannen, M.D.Barrington, IL 600101952414682
- Mark Giacomin, DOBarrington, IL 600101215948153
- Viren Gohil, M.D.Barrington, IL 600101225081037
- Jeffrey Gordon, MDBarrington, IL 600101558308676
- David Greenberg, M.D.Barrington, IL 600101598705659
- Danish Haque, MDBarrington, IL 600101336193093
- Tracey Hashemi, MDBarrington, IL 600101508857905
- Shabbir Kanji, MDBarrington, IL 600101649224973
Common questions
What is Marc A. Dorfman, MD's NPI number?
Marc A. Dorfman, MD's National Provider Identifier (NPI) is 1912908583, issued on Aug 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc A. Dorfman, MD located?
The NPPES record lists a practice address at 450 W Highway 22, Barrington, IL, 60010. Phone: (847) 381-9600. Providers update this record themselves, so call before visiting.
How can I verify Marc A. Dorfman, MD's license?
NPPES lists Illinois license number 036086890, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc A. Dorfman, MD prescribe under Medicare Part D?
In 2024, Marc A. Dorfman, MD had 97 Medicare Part D claims for 73 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Marc A. Dorfman, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.