Mark Weisberg
Internal Medicine Physician · Elk Grove Vlg, IL
Mark Weisberg is an internal medicine physician with a practice address in Elk Grove Vlg, Illinois, and NPI 1972531168, issued on Jun 28, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark Weisberg
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 810 Biesterfield RD, Elk Grove Vlg, IL 60007
- Phone
- (847) 981-8856
- Enumerated
- Jun 28, 2006
- Record last updated
- Jan 9, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040318000386); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1990
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 810 Biesterfield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Premalatha NandkumarInternal Medicine Physician1366471898
Verify Mark Weisberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average internal medicine physician in 2024
3,651 Medicare Part D claims for 184 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 194 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium260 claims
- Levothyroxine Sodium259 claims
- Hydrocodone-Acetaminophen183 claims
- Atorvastatin Calcium151 claims
- Lisinopril147 claims
- Metoprolol Succinate116 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: $620.13
36 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 one group practice
- Elk Grove Internists PCElk Grove Village, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Weisberg among 7,238 internal medicine physician records in Illinois
Mark Weisberg is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1990 · median 2003 among the 3,580 with a school on file
- Record last updated2008 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 internal medicine physician records list a practice address in Elk Grove Vlg
They are 2 of the 69 NPPES records with a practice address in Elk Grove Vlg, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Elk Grove Vlg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dennis Abella, DOElk Grove Village, IL 600071962498451
- Jeffrey Eye, MDElk Grove Village, IL 600071780662460
- Thomas Flanagan, MDElk Grove Village, IL 600071508841883
- Barry Glick, DOElk Grove Village, IL 600071013903509
- Catherine Johnson, D.O.Elk Grove Village, IL 600071144247784
- Hameeduddin Khaja, MDElk Grove Village, IL 600071528079886
- Mansoor Khan, MDElk Grove Village, IL 600071053490920
- Kuttoppilly Krishnankutty, MDElk Grove, IL 600071417016874
Common questions
What is Mark Weisberg's NPI number?
Mark Weisberg's National Provider Identifier (NPI) is 1972531168, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Weisberg located?
The NPPES record lists a practice address at 810 Biesterfield RD, Elk Grove Vlg, IL, 60007. Phone: (847) 981-8856. Providers update this record themselves, so call before visiting.
How can I verify Mark Weisberg's license?
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 Weisberg prescribe under Medicare Part D?
In 2024, Mark Weisberg had 3,651 Medicare Part D claims for 184 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.