Mark C. Jacobson, M.D
Allergy & Immunology Physician · Hinsdale, IL
Mark C. Jacobson, M.D is an allergy & immunology physician with a practice address in Hinsdale, Illinois, and NPI 1124059076, issued on Jul 6, 2006. Check the license (Illinois 036084954, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark C. Jacobson
- Credential
- M.D
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 036084954 IL
Self-reported in NPPES; status is on the state search - Practice location
- 911 N Elm St Ste 300, Hinsdale, IL 60521
- Phone
- (630) 455-0456
- Enumerated
- Jul 6, 2006
- Record last updated
- Feb 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 036084954 IL
- Medicare enrollment
- Enrolled (PECOS I20120419000104); may accept Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 162 in Illinois → Look up another NPI →
Verify Mark C. Jacobson 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 036084954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
387 Medicare Part D claims for 69 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Azelastine Hcl57 claims
- Montelukast Sodium49 claims
- Hydroxyzine Hcl28 claims
- Dulera25 claims
- Fluticasone Propionate20 claims
- Arnuity Ellipta19 claims
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.
Industry payments in 2024: $1,973.16
83 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 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.
Mark C. Jacobson among 162 allergy & immunology physician records in Illinois
Mark C. Jacobson, M.D is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1990 · median 2001 among the 114 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Illinois
There are 162 allergy & immunology physician records in Illinois.
All 162 in Illinois → Every provider in Hinsdale → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Kiran Girdhar, M.D.Hinsdale, IL 605211508942822
- Manika Girdhar, D.O.Hinsdale, IL 605211003186479
- Daina RingusHinsdale, IL 605211205383874
- Ann Collier, MDOak Brook, IL 605231891863411
- Syed Rizvi, MDCountryside, IL 605251992235865
- Samyukta Koppula, M.D.Willowbrook, IL 605271770641763
- Titus Chang, M.D.Aurora, IL 605061316988850
- Maaria Syed, M.D.Aurora, IL 605041972878080
Common questions
What is Mark C. Jacobson, M.D's NPI number?
Mark C. Jacobson, M.D's National Provider Identifier (NPI) is 1124059076, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark C. Jacobson, M.D located?
The NPPES record lists a practice address at 911 N Elm St Ste 300, Hinsdale, IL, 60521. Phone: (630) 455-0456. Providers update this record themselves, so call before visiting.
How can I verify Mark C. Jacobson, M.D's license?
NPPES lists Illinois license number 036084954, 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 Mark C. Jacobson, M.D prescribe under Medicare Part D?
In 2024, Mark C. Jacobson, M.D had 387 Medicare Part D claims for 69 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
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.