Jeffrey D. Hershkowitz, D.O.
Internal Medicine Physician · Galesburg, IL
Jeffrey D. Hershkowitz, D.O. is an internal medicine physician with a practice address in Galesburg, Illinois, and NPI 1922101104, issued on Sep 6, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jeffrey D. Hershkowitz
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 3315 N Seminary St, Galesburg, IL 61401
- Phone
- (309) 344-1000
- Enumerated
- Sep 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (309) 344-1054
- Medicare enrollment
- Enrolled (PECOS I20040421000214); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 1988
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 3315 N Seminary St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jeffrey D. Hershkowitz 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
8.3 times the Medicare Part D claims of the average internal medicine physician in 2024
26,272 Medicare Part D claims for 1,329 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 1,047 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,255 claims
- Levothyroxine Sodium1,028 claims
- Gabapentin674 claims
- Lisinopril663 claims
- Furosemide638 claims
- Hydrocodone-Acetaminophen570 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: $3,750.38
84 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
2 hospitals and group practices
- St Mary Medical CenterGalesburg, IL · Acute Care Hospitals2 of 5 stars
- Osf Multi-Specialty GroupGalesburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Jeffrey D. Hershkowitz among 7,238 internal medicine physician records in Illinois
Jeffrey D. Hershkowitz, D.O. 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
- Graduated1988 · median 2003 among the 3,580 with a school on file
- Record last updated2007 · 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).
9 internal medicine physician records list a practice address in Galesburg
They are 9 of the 526 NPPES records with a practice address in Galesburg, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Galesburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ramon Garcia, MDGalesburg, IL 614011710928700
- Brij Jamnadas, M.D.Galesburg, IL 614011669575460
- James King, M.D.Galesburg, IL 614011295838001
- Yan Liu, MDGalesburg, IL 614011366540684
- Mark Meeker, D. O.Galesburg, IL 614011225139058
- Boris Miokovic, MDGalesburg, IL 614011609440148
- Balakrishna Ravella, MDGalesburg, IL 614011487214029
- Carl Strauch, M.D.Galesburg, IL 614011154320620
Common questions
What is Jeffrey D. Hershkowitz, D.O.'s NPI number?
Jeffrey D. Hershkowitz, D.O.'s National Provider Identifier (NPI) is 1922101104, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey D. Hershkowitz, D.O. located?
The NPPES record lists a practice address at 3315 N Seminary St, Galesburg, IL, 61401. Phone: (309) 344-1000. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey D. Hershkowitz, D.O.'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 Jeffrey D. Hershkowitz, D.O. prescribe under Medicare Part D?
In 2024, Jeffrey D. Hershkowitz, D.O. had 26,272 Medicare Part D claims for 1,329 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.